Below is the full list of all Vent Fields.
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Vent Field Name ID | Activity | Tectonic Setting | Region | Latitude | Longitude | Maximum or Single Reported Depth | Year and How Discovered |
---|---|---|---|---|---|---|---|
MAR, 24 30'N | inactive | mid-ocean ridge | N MAR | 24.5000 | -46.1533 | 3900 | 1987 deposits only |
Galapagos Rift, 95 W | inactive | mid-ocean ridge | Galapagos Rift | 2.5000 | -95.1667 | 2600 | NotProvided |
Krasnov | inactive | mid-ocean ridge | N MAR | 16.6400 | -46.4750 | 3900 | 2002 or earlier plume only; 2004 TV grab indicated inactive; 2007 ROV Victor indicated inactive |
MESO Zone | inactive | mid-ocean ridge | CIR | -23.3927 | 69.2422 | 2850 | 1993 TV grab and water column measurements |
Pere Lachaise | inactive | back-arc spreading center | North Fiji Basin | -16.9667 | 173.9333 | 2000 | 1989 submersible Nautile did not find activity; 1991 submersible Shinkai 6500 did not find activity |
Jade Emperor Mountain | inactive | mid-ocean ridge | SWIR | -37.9400 | 49.2600 | 1500 | 2010 video sled, plume survey, and geological sampling all suggest inactive |
Zenith-Victory | inactive | mid-ocean ridge | N MAR | 20.1292 | -45.6225 | 2390 | 2008 (need citation to confirm that the field was discovered by TV-profiling and dredging) |
MAR, 25 50'N | inactive | mid-ocean ridge | N MAR | 25.8083 | -44.9833 | 3000 | NotProvided |
Conical Seamount | inactive | arc volcano | Tabar-Feni Arc | -3.2500 | 152.6600 | 1050 | 1998 TV grab survey determined inactive |
DSDP Hole 504B | inactive | mid-ocean ridge | Galapagos Rift | 1.2267 | -83.7300 | 3500 | NotProvided |
Guaymas Basin, Northern Trough | inactive | mid-ocean ridge | Gulf of California | 27.3050 | -111.5067 | 2000 | 1977 submersible Seacliff (hydrothermal deposits only) |
Philippine Ridge, West Philippine Basin | inactive | back-arc spreading center | West Philippine Basin | 12.0000 | 131.4170 | 5800 | NotProvided |
western Manus Basin, Bismarck Sea | inactive | back-arc spreading center | Manus Basin | -3.0000 | 147.0000 | 1800 | NotProvided |
EPR, 14 N seamount | inactive | mid-ocean ridge | N EPR | 14.1500 | -104.3667 | 2600 | NotProvided |
MAR, 12 48'N | inactive | mid-ocean ridge | N MAR | 12.8000 | -44.7883 | 2400 | NotProvided |
Owen transform fault | inactive | mid-ocean ridge | Carlsberg Ridge | 9.8333 | 57.9500 | 4500 | NotProvided |
W Eye of Mordor | inactive | mid-ocean ridge | Galapagos Rift | 1.9707 | -91.3900 | 1600 | 2005 towed video Medea observed inactive chimneys |
Kasuga 1 Seamount | inactive | arc volcano | Mariana Arc | 21.7650 | 143.7100 | 600 | 2003 no plume detected |
Mata Nima | inactive | arc volcano | Lau Basin | -14.9583 | -173.7833 | 2670 | 2010 no plume detected |
E Eye of Mordor | inactive | mid-ocean ridge | Galapagos Rift | 1.9058 | -91.2310 | 1600 | 2005 towed video Medea found inactive chimneys |
Carlsberg Ridge, 1.67 S | inactive | mid-ocean ridge | Carlsberg Ridge | -1.6768 | 67.7700 | 4500 | NotProvided |
Brown Bear Seamount | inactive | mid-ocean ridge | JdF Ridge | 46.0333 | -130.5500 | 1500 | NotProvided |
Mount Jourdanne | inactive | mid-ocean ridge | SWIR | -27.8500 | 63.9333 | 2940 | 1998 submersible Shinkai 6500 |
Dellwood Seamount | inactive | mid-ocean ridge | Explorer Ridge | 50.7470 | -130.8961 | 800 | 1974 or earlier deposits only; 2018 ROV Hercules inactive |
EPR 87D1 Seamount | inactive | mid-ocean ridge | N EPR | 11.5333 | -103.8600 | 2090 | NotProvided |
Logatchev-4 | inactive | mid-ocean ridge | N MAR | 14.7063 | -44.9083 | 2000 | 2004 TV sled observed inactive field [ROV QUEST was also on this cruise, but Kuhn et al. (2004) do not report its use at Logatchev-4] |
Gorda Ridge, 41 30'N | inactive | mid-ocean ridge | Gorda Ridge | 41.5167 | -127.4500 | 3350 | 1984 deposits only |
Solwara 12 | inactive | back-arc spreading center | Manus Basin | -3.7086 | 151.8834 | 1920 | 2009 commercial ROV Fugro FV300 inactive |
Kurose Hole | inactive | arc volcano | Izu-Bonin Arc | 33.4000 | 139.6800 | 760 | 1989 inactive; 2009 inactive |
Explorer Deep | inactive | mid-ocean ridge | Explorer Ridge | 50.1000 | -129.7500 | 3200 | 1969, deposits only |
Hawaiian Ridge | inactive | intra-plate volcano | Central Pacific | 15.0000 | -157.5000 | 5000 | 1987 or earlier |
MAR, 15 50'N | inactive | mid-ocean ridge | N MAR | 15.8667 | -46.6667 | 3000 | NotProvided |
Tripartite Ridge, south of TR1 | inactive | back-arc spreading center | North Fiji Basin | -14.5000 | 177.0000 | 3000 | NotProvided |
Logatchev-5 | inactive | mid-ocean ridge | N MAR | 14.7500 | -44.9700 | 3100 | 2007 ROV VICTOR 6000 did not find hydrothermal activity |
central Manus Basin, Bismarck Sea | inactive | back-arc spreading center | Manus Basin | -3.4199 | 150.1681 | 2500 | NotProvided |
MAR, 16 46'N | inactive | mid-ocean ridge | N MAR | 16.7950 | -46.3800 | 3300 | NotProvided |
Tripartite Ridge, south of TR3 | inactive | back-arc spreading center | North Fiji Basin | -14.0745 | 175.4729 | 3000 | NotProvided |
Galapagos Rift, 85 50'W | inactive | mid-ocean ridge | Galapagos Rift | 0.7500 | -85.8333 | 2600 | 1988 or earlier submersible observations |
Hess Deep | inactive | mid-ocean ridge | Galapagos Rift | 2.2500 | -101.5000 | 5100 | NotProvided |
MAR, 22 30'N | inactive | mid-ocean ridge | N MAR | 22.5000 | -45.0050 | 2800 | NotProvided |
Ashadze-3 | inactive | mid-ocean ridge | N MAR | 12.9860 | -44.8610 | 4200 | 2005 plume and dredge only |
east of Central Spreading Ridge | inactive | back-arc spreading center | North Fiji Basin | -15.4510 | 174.6902 | 3000 | NotProvided |
Paramushir Island | inactive | arc volcano | Kuril Arc | 50.3300 | 155.5000 | 800 | NotProvided |
MAR, 23 35'N | inactive | mid-ocean ridge | N MAR | 23.5833 | -45.0000 | 3500 | 1980 submersible Alvin did not observe hydrothermal activity |
Romanche Fracture Zone | inactive | mid-ocean ridge | S MAR | -0.9767 | -24.5133 | 3100 | NotProvided |
Nishi-Shichito Ridge | inactive | arc volcano | Izu-Bonin Arc | 31.3667 | 138.7500 | 1600 | NotProvided |
SEIR | inactive | mid-ocean ridge | SEIR | -28.0614 | 74.1733 | 5000 | NotProvided |
Ashadze-4 | inactive | mid-ocean ridge | N MAR | 12.9700 | -44.8500 | 4530 | 2007 ROV VICTOR 6000 did not find hydrothermal activity |
Parece Vela Ridge, Philippine Sea | inactive | back-arc spreading center | Parece Vela Basin | 16.0000 | 139.1667 | 5000 | NotProvided |
Shinkurose Bank | inactive | arc volcano | Izu-Bonin Arc | 33.5667 | 140.1667 | 200 | 1992 or earlier submersible Shinkai 2000 |
EPR, 13 N, SE Seamount | inactive | mid-ocean ridge | N EPR | 12.7000 | -103.8600 | 2500 | 1981 towed camera, dredging, and plume did not confirm activity; 1982 and 1984 submersible Cyana did not confirm activity |
Green Seamount | inactive | mid-ocean ridge | N EPR | 20.8033 | -109.2833 | 2000 | 1982 submersible Alvin observed only inactive |
Squid Forest | inactive | mid-ocean ridge | Kolbeinsey Ridge | 68.0000 | -17.5000 | 900 | 1999 ROV Aglantha |
MAR, 24 20'N | inactive | mid-ocean ridge | N MAR | 24.3500 | -46.2000 | 3200 | NotProvided |
Petersburgskoe | inactive | mid-ocean ridge | N MAR | 19.8666 | -45.8666 | 3100 | 2010 dredging only |
Peggy Ridge | active, inferred | back-arc spreading center | Lau Basin | -16.9233 | -176.8250 | 1900 | 1975 or earlier rock samples only; inactive in systematic survey on Arculus cruise SS07/2008 |
SEIR-WXC12 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 136.2500 | 2780 | 2015 plume only |
Solwara 19 | active, inferred | back-arc spreading center | Manus Basin | -3.6660 | 148.7640 | 1039 | 2009 commercial ROV Fugro FV300 (activity not confirmed) |
EPR, 17 42'S | active, inferred | mid-ocean ridge | S EPR | -17.7000 | -113.2500 | 2600 | 1993 plume only |
Lucky B | active, inferred | mid-ocean ridge | Lena Trough | 81.3610 | -3.4400 | 4000 | 1999 dredging only |
Boomerang Seamount | active, inferred | mid-ocean ridge | SEIR | -37.7217 | 77.8250 | 850 | 1996 plume and wax core only |
EPR, 14 18'S | active, inferred | mid-ocean ridge | S EPR | -14.3000 | -112.6670 | 2630 | 1993 plume only |
Vityaz megamullion | active, inferred | mid-ocean ridge | CIR | -5.4000 | 68.5833 | 3500 | 1979 plume and deposits only |
EPR, northern 17 N segment | active, inferred | mid-ocean ridge | N EPR | 17.6700 | -105.0050 | 2800 | 1997 plume only |
CIR, 8-17 S, Segment 6, 14.3 S | active, inferred | mid-ocean ridge | CIR | -14.3000 | 66.1000 | 3500 | 2010 plume only |
GEISEIR site 36, segment O3 | active, inferred | mid-ocean ridge | SEIR | -47.7009 | 98.0631 | 2700 | 2009 plume only |
Puy des Folles | active, inferred | mid-ocean ridge | N MAR | 20.5083 | -45.6417 | 2000 | 1996 submersible Nautile observed only inactive vents |
Sumisu Rift | active, inferred | back-arc spreading center | Izu-Bonin back-arc | 31.1000 | 139.8917 | 1600 | 1987 submersible Alvin inactive chimneys only |
Zealandia | active, inferred | arc volcano | Mariana Arc | 16.8800 | 145.8500 | 144 | 2003 plume only; 2009 or earlier ROV did not confirm activity |
EPR, 2 S, off-axis | active, inferred | mid-ocean ridge | S EPR | -2.0840 | -102.8270 | 3000 | 2008 plume only |
MAR, 11 26'N | active, inferred | mid-ocean ridge | N MAR | 11.4482 | -43.7035 | 3835 | 2009 plume only |
Montserrat-Marie Galante fault | active, inferred | arc volcano | Lesser Antilles Arc | 16.4600 | -61.9820 | 1000 | 1987 plume and deposits |
NE Anatahan submarine volcano | active, inferred | arc volcano | Mariana Arc | 16.3750 | 145.7250 | 460 | 2003 multibeam and sidescan sonar only |
Chile Rise, Segment N8 | active, inferred | mid-ocean ridge | Chile Rise | -38.7167 | -91.5667 | 3330 | 1998 plume only |
ET | active, inferred | mid-ocean ridge | JdF Ridge | 48.1993 | -128.9257 | 2500 | NotProvided |
N-ELSC, plume 22 | active, inferred | back-arc spreading center | Lau Basin | -20.4000 | -176.1580 | 2700 | 2004 plume only |
Secca del Capo | active, inferred | arc volcano | Aeolian Arc, Tyrrhenian Sea | 38.6333 | 14.8500 | 240 | 1995 ROV Comex deposits only; 2007 plume only |
Tonga Arc, Volcano C | active, inferred | arc volcano | Tonga Arc | -20.1800 | -175.2000 | 1050 | 2004 SS11/2004 cruise did not detect hydrothermal activity |
Mariana Trough, 14.5 N | active, inferred | back-arc spreading center | Mariana Trough | 14.4870 | 144.0940 | 4120 | 2015 plume only |
GEISEIR site 26, segment M4 | active, inferred | mid-ocean ridge | SEIR | -43.6901 | 92.8451 | 2500 | 2009 plume only |
GEISEIR site 15, segment L1 | active, inferred | mid-ocean ridge | SEIR | -41.2230 | 86.3892 | 2500 | 2010 plume only |
Okinawa Trough, Site ES1 | active, inferred | back-arc spreading center | Okinawa Trough | 30.3303 | 129.0827 | 521 | 1992 dredge only |
Gakkel Ridge, Site 3 | active, inferred | mid-ocean ridge | Gakkel Ridge | 84.4333 | 2.1333 | 4300 | 2001 plume only |
MAR, 23 S | active, inferred | mid-ocean ridge | S MAR | -23.7428 | -13.3936 | 2880 | 2013 plume only |
GEISEIR site 10, segment K4 | active, inferred | mid-ocean ridge | SEIR | -42.4770 | 82.7100 | 2500 | 1996 plume only; 2010 plume only |
EPR, 11 07'N | active, inferred | mid-ocean ridge | N EPR | 11.1330 | -103.7800 | 2580 | 1988 submersible Alvin dive #1989 (need reference to confirm activity); 1991 plume only |
SWIR, unnamed, Segment 26 | active, inferred | mid-ocean ridge | SWIR | -37.6080 | 50.8527 | 2800 | 2008 dredge only DY115-20 Leg 6 |
SWIR, D57 | active, inferred | mid-ocean ridge | SWIR | -52.2240 | 13.7380 | 3517 | 2000-2001 plume and dredge only |
West Valley | active, inferred | mid-ocean ridge | JdF Ridge | 48.4833 | -129.0417 | 3000 | 1987 and 1988 deposits only (towed camera did not confirm activity) |
SEIR-WXC02 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 137.0000 | 2620 | 2015 plume only |
Sonne | active, inferred | arc volcano | Kermadec Arc | -34.0580 | 179.5890 | 1127 | 2002 plume only |
ELSC3 | active, inferred | back-arc spreading center | Lau Basin | -21.1667 | -176.3333 | 2140 | 2009 plume only |
EPR, 14 35'S | active, inferred | mid-ocean ridge | S EPR | -14.5830 | -112.6670 | 2630 | 1993 plume only |
Tevnia | active, inferred | mid-ocean ridge | N EPR | 10.3333 | -103.5533 | 2925 | 1994 submersible Alvin did not confirm activity |
Lobster | active, inferred | back-arc spreading center | Lau Basin | -15.3330 | -176.2830 | 1500 | 2008 plume and dredge only |
CIR, 8-17 S, Segment 7 | active, inferred | mid-ocean ridge | CIR | -17.0000 | 66.8000 | 3100 | 2010 plume only |
Monowai Cone | active, inferred | arc volcano | Tonga Arc | -25.8870 | -177.1880 | 150 | 1998 R/V Sonne SO-135; 2004 plume only |
GEISEIR site 37, segment O4 | active, inferred | mid-ocean ridge | SEIR | -47.7483 | 98.1756 | 2800 | 2009 plume only |
Alarcon Rise/Tamayo intersection | active, inferred | mid-ocean ridge | Gulf of California | 23.2336 | -108.6168 | 2358 | 2015 ROV Doc Ricketts did not confirm activity |
MAR, 11 N | active, inferred | mid-ocean ridge | N MAR | 11.0380 | -43.6483 | 4010 | 1984 plume only; 2009 plume only |
Neptune's Beard | active, inferred | mid-ocean ridge | N MAR | 12.9100 | -44.9000 | 4100 | 1984 plume only; 2000 TV survey did not confirm activity |
Chile Rise, Segment N9A | active, inferred | mid-ocean ridge | Chile Rise | -39.0500 | -91.5833 | 3450 | 1998 plume only |
Europa | active, inferred | mid-ocean ridge | Mid-Cayman Rise | 18.3500 | -81.8500 | 2400 | 2009 plume only, not observed on dive with hybrid ROV Nereus |
Sisifo | active, inferred | arc volcano | Aeolian Arc, Tyrrhenian Sea | 38.7833 | 13.8666 | 1200 | 2007 plume only |
Rumble II West | active, inferred | arc volcano | Kermadec Arc | -35.3600 | 178.5170 | 1500 | 1996 dredging only; 1999 plume only |
Tonga Arc, Volcano D | active, inferred | arc volcano | Tonga Arc | -19.4500 | -174.9167 | 760 | 2004 plume only |
SWIR, D62 | active, inferred | mid-ocean ridge | SWIR | -52.2530 | 15.1030 | 3990 | 2000-2001 plume and dredge only |
EPR, 30.1 S, Segment E1 | active, inferred | mid-ocean ridge | S EPR | -30.1330 | -111.7640 | 2480 | 1998 plume only |
GEISEIR site 27, segment M5 | active, inferred | mid-ocean ridge | SEIR | -43.9805 | 93.4571 | 2700 | 2009 plume only |
Galapagos Rift, 95.5 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.6700 | -95.4500 | 3200 | 1990 submersible Alvin did not confirm activity |
GEISEIR site 16, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.5883 | 87.2615 | 2500 | 2010 plume only |
Okinawa Trough, Site ES2 | active, inferred | back-arc spreading center | Okinawa Trough | 28.8137 | 128.1028 | 779 | 1992 dredge only |
Gakkel Ridge, Site 5 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.3500 | 37.0000 | 3600 | 2001 plume only |
NWLSC, Southern Caldera | active, inferred | back-arc spreading center | Lau Basin | -15.9000 | -177.4166 | 2160 | 2008 plume only |
MAR, 19 S | active, inferred | mid-ocean ridge | S MAR | -19.3301 | -11.9421 | 2707 | 2013 plume only |
GEISEIR site 7, segment K3 | active, inferred | mid-ocean ridge | SEIR | -41.8020 | 81.8380 | 2540 | 1996 plume only; 2010 plume only |
Aden New Century Mountains | active, inferred | mid-ocean ridge | Aden Ridge | 12.0833 | 45.6667 | 800 | 2000-2001 plume only |
MTJ, PAPATUA | active, inferred | back-arc spreading center | Lau Basin | -15.3850 | -174.6430 | 2170 | 1986 PAPATUA Expedition deposits only; 2008 plume only |
Duanqiao | active, inferred | mid-ocean ridge | SWIR | -37.6579 | 50.4671 | 1780 | 2008 video and TV-grab DY115-20 Leg 5; 2015 TV-grab DY125-34 |
EPR, 8 53'N | active, inferred | mid-ocean ridge | N EPR | 8.9000 | -104.2000 | 2580 | 1991 plume only |
Hinetapeka volcanic center | active, inferred | arc volcano | Kermadec Arc | -28.5900 | -177.8200 | 300 | 2004 plume and dredging NZAPLUME III expedition |
GEISEIR site 38, segment O4 | active, inferred | mid-ocean ridge | SEIR | -48.0048 | 98.8232 | 2800 | 2009 plume only |
Rakahore volcanic center | active, inferred | arc volcano | Kermadec Arc | -26.8100 | -177.4000 | 1200 | 2004 plume and dredging NZAPLUME III expedition |
SEIR-WXC07 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 138.3000 | 2420 | 2015 plume only |
EPR, 17 47'S | active, inferred | mid-ocean ridge | S EPR | -17.7900 | -113.3000 | 2600 | 1993 plume only |
Lucky Strike segment, southern end | active, inferred | mid-ocean ridge | N MAR | 37.0500 | -32.4200 | 2600 | 1994 plume only |
Three Sisters, Middle Sister | active, inferred | back-arc spreading center | Bransfield Strait | -62.6420 | -58.9833 | 1040 | 1995 plume only; 1999 still had no visual confirmation |
N-ELSC, plume 25 | active, inferred | back-arc spreading center | Lau Basin | -19.8900 | -176.0640 | 2680 | 2004 plume only |
near Jade Emperor Mountain, on-axis | active, inferred | mid-ocean ridge | SWIR | -37.8666 | 49.2166 | 3000 | 2010 plume only |
Tonga Arc, Volcano J1 | active, inferred | arc volcano | Tonga Arc | -17.2400 | -173.9500 | 560 | 2004 plume only |
Mariana Trough, 16.5 N | active, inferred | back-arc spreading center | Mariana Trough | 16.4010 | 144.8700 | 3829 | 2015 plume only |
SW Syoyo | active, inferred | arc volcano | Mariana Arc | 22.3870 | 142.7620 | 1750 | 2003 plume only |
Tonga Arc, Volcano 14 | active, inferred | arc volcano | Tonga Arc | -23.5750 | -176.7050 | 985 | 2003 plume and dredge only |
Station 58, N160 Axis | active, inferred | back-arc spreading center | North Fiji Basin | -16.3167 | 173.5500 | 3900 | 1985 plume only; 1991 temperature anomalies but submersible Shinkai 6500 did not confirm activity |
MAR, 27 N | active, inferred | mid-ocean ridge | N MAR | 27.0000 | -44.5000 | 2900 | 1993 plume only |
EPR, 20 S | active, inferred | mid-ocean ridge | S EPR | -20.0333 | -113.6843 | 3000 | 1999 submersible Alvin did not confirm activity |
Daiichi-Amami knoll | active, inferred | arc volcano | Ryukyu Arc | 28.4500 | 128.7500 | 350 | 2013 multibeam echo sounder on S/V Takuyo and AUV Gondo |
Nereus Deep | active, inferred | mid-ocean ridge | Red Sea | 23.1670 | 37.2830 | 2400 | 1972 deposits only |
Eva | active, inferred | arc volcano | New Hebrides Arc | -22.0000 | 170.7500 | 1600 | 2008 plume only |
Mata Ono | active, inferred | arc volcano | Lau Basin | -14.9333 | -173.7916 | 2600 | 2010 plume only |
San Cristobal arc, Target M | active, inferred | arc volcano | Solomons Arc | -10.4000 | 164.7500 | 2000 | 2002 plume and dredge only |
Consag Basin | active, inferred | mid-ocean ridge | Gulf of California | 30.6333 | -113.9083 | 140 | 2007 echosounder and grab samples |
Kana Keoki seamount | active, inferred | arc volcano | Solomons Arc | -8.7500 | 157.0300 | 650 | 1993 observations did not confirm activity |
SWIR, D82 | active, inferred | mid-ocean ridge | SWIR | -52.2080 | 15.5830 | 4100 | 2000-2001 plume only |
EPR, 30.4 S, Segment E2 | active, inferred | mid-ocean ridge | S EPR | -30.3750 | -111.7640 | 2320 | 1998 plume only |
GEISEIR site 28, segment M6 | active, inferred | mid-ocean ridge | SEIR | -44.7237 | 94.6039 | 2700 | 2009 plume only |
Markov Deep | active, inferred | mid-ocean ridge | N MAR | 5.9100 | -33.1800 | 3500 | 2001-2002 and 2003 dredge only |
Gamble volcanic center | active, inferred | arc volcano | Kermadec Arc | -27.2000 | -177.4100 | 250 | 2004 plume and dredging NZAPLUME III expedition |
GEISEIR site 17, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.6498 | 87.3481 | 2500 | 2010 plume only |
Gakkel Ridge, Site 6 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.5333 | 43.0000 | 3000 | 2001 plume only |
Area JX | active, inferred | mid-ocean ridge | CIR | -22.9666 | 69.1833 | 3500 | 1986 plume only (camera tow did not confirm) |
GEISEIR site 5, segment K1 | active, inferred | mid-ocean ridge | SEIR | -41.2420 | 81.1580 | 2860 | 1996 plume only; 2007 plume only |
Dugong submarine volcano | active, inferred | back-arc spreading center | Lau Basin | -15.4500 | -175.7000 | 1170 | 2008 plume only |
Vema Fracture Zone | active, inferred | other | N MAR | 10.7100 | -42.6800 | 5180 | 2015 plume only |
CIR, 8-17 S, Segment 1 | active, inferred | mid-ocean ridge | CIR | -8.2500 | 68.2000 | 3600 | 2010 plume only |
SEIR-WXC06 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 138.5500 | 2400 | 2015 plume only |
EPR, 17 53'S | active, inferred | mid-ocean ridge | S EPR | -17.8800 | -113.3000 | 2610 | 1993 plume only |
N-ELSC, plume 26 | active, inferred | back-arc spreading center | Lau Basin | -19.8200 | -176.0420 | 2600 | 2004 plume only |
EPR, Seamount 5 | active, inferred | mid-ocean ridge | N EPR | 13.0000 | -103.5000 | 1100 | 1988 or earlier camera and/or submersible (need to check reference) |
Central Andaman Trough, rift valley, dredges 9 and 10 | active, inferred | back-arc spreading center | Andaman Basin | 10.4166 | 94.1666 | 3350 | 1994 deposits only |
Mariana Trough, 18.2 N | active, inferred | back-arc spreading center | Mariana Trough | 18.1080 | 144.7380 | 3916 | 2015 plume only |
Tonga Arc, Volcano 15 | active, inferred | arc volcano | Tonga Arc | -23.9000 | -176.7800 | 1400 | 2003 plume only |
EPR, 27.7 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -27.7000 | -112.9170 | 2105 | 1998 plume only |
MAR, 30 N | active, inferred | mid-ocean ridge | N MAR | 30.0333 | -42.5000 | 3400 | 1993 plume only |
EPR, 21 20'S | active, inferred | mid-ocean ridge | S EPR | -21.3670 | -114.2570 | 2900 | 1981 plume only; 1987-1988 deposits only |
GEISEIR site 4, segment K1 | active, inferred | mid-ocean ridge | SEIR | -41.2025 | 81.0625 | 2800 | 2010 plume only |
CIR, 19 29'S | active, inferred | mid-ocean ridge | CIR | -19.4830 | 65.7330 | 2700 | 1988 plume only; 2000 submersible Nautile did not confirm activity |
Knipovich Ridge, 75 N | active, inferred | mid-ocean ridge | Knipovich Ridge | 74.8000 | 8.4417 | 3185 | 2000 plume only |
Mohns Ridge, 72 N | active, inferred | mid-ocean ridge | Mohns Ridge | 72.0390 | -0.2520 | 2500 | 1987 plume only; 2013 plume only |
San Cristobal arc, Target N | active, inferred | arc volcano | Solomons Arc | -10.5000 | 164.0000 | 2000 | 2002 dredge only |
VFR, ELSC7 | active, inferred | back-arc spreading center | Lau Basin | -22.8833 | -176.7500 | 2050 | 2009 plume and dredge only |
SWIR, D9B | active, inferred | mid-ocean ridge | SWIR | -52.7070 | 18.8170 | 3931 | 2000-2001 plume and dredge only |
EPR, 30.8 S, Segment E2 | active, inferred | mid-ocean ridge | S EPR | -30.7500 | -111.8770 | 2360 | 1998 plume only |
GEISEIR site 29, segment M6 | active, inferred | mid-ocean ridge | SEIR | -44.9054 | 94.9673 | 2700 | 2009 plume only |
Gemini-Oscostar Volcanic Complex | active, inferred | arc volcano | New Hebrides Arc | -20.9830 | 170.2830 | 100 | 2001 deposits and plume; 2004 plume and sulfide samples |
GEISEIR site 18, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.7133 | 87.4375 | 2500 | 2010 plume only |
Pacific-Antarctic Ridge, 60 S segment | active, inferred | mid-ocean ridge | Pacific-Antarctic Ridge | -60.0000 | -152.0000 | 2300 | 2009 plume only |
Gakkel Ridge, Site 7 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.9833 | 55.5000 | 3800 | 2001 plume only |
Pobeda-1 | active, inferred | mid-ocean ridge | N MAR | 17.1500 | -46.4200 | 3100 | 2014/2015 video profiling, TVgrab and corer |
GEISEIR site 3, segment J4 | active, inferred | mid-ocean ridge | SEIR | -41.7720 | 79.7530 | 2800 | 1996 plume only |
Ahyi | active, inferred | arc volcano | Mariana Arc | 20.4200 | 145.0300 | 60 | 2003 plume only |
EPR, southern 16 N segment | active, inferred | mid-ocean ridge | N EPR | 15.5000 | -105.4000 | 2300 | 1997 plume only |
Central Andaman Trough, seamount crater, dredge 6 | active, inferred | back-arc spreading center | Andaman Basin | 10.0000 | 94.0000 | 1640 | 1994 deposits only |
CIR, 8-17 S, Segment 2 | active, inferred | mid-ocean ridge | CIR | -9.9000 | 66.7500 | 4000 | 2010 plume only |
Red Sea Rift, 18 N | active, inferred | mid-ocean ridge | Red Sea | 17.9667 | 40.0667 | 1500 | 1980 submersible Pisces XI (deposits only) |
Haungaroa | active, inferred | arc volcano | Kermadec Arc | -32.6060 | -179.6090 | 1165 | 2002 plume only |
Tangyin | active, inferred | back-arc spreading center | Okinawa Trough | 25.0667 | 122.5667 | 1206 | 2014 likely by dredging or ROV during the HOBAB3 cruise on R/V Kexue |
W Los Huellos Caldera | active, inferred | mid-ocean ridge | Galapagos Rift | 1.0000 | -90.6000 | 1600 | 2005 plume only |
EPR, 17 56'S | active, inferred | mid-ocean ridge | S EPR | -17.9400 | -113.3170 | 2620 | 1993 plume only |
South Sarigan Seamount | active, inferred | arc volcano | Mariana Arc | 16.5800 | 145.7800 | 240 | 2013 ROV HyperDolphin (did not confirm activity) |
EPR, 15 24'S | active, inferred | mid-ocean ridge | S EPR | -15.4000 | -112.8350 | 2640 | 1993 plume only |
N-ELSC, plume 27 | active, inferred | back-arc spreading center | Lau Basin | -19.7500 | -176.0190 | 2570 | 2004 plume only; 2009 plume only |
Stockwork | active, inferred | mid-ocean ridge | JdF Ridge | 47.9000 | -129.1240 | 2300 | 2005 submersible Alvin (need publication to determine if confirmed) |
Eolo Seamount | active, inferred | arc volcano | Aeolian Arc, Tyrrhenian Sea | 38.5800 | 14.1667 | 800 | 1976 Fe crusts only; 2007 plume only; 2011 ROV Hercules but can not confirm based on Carey et al. (2012) |
S AMAR 1 | active, inferred | mid-ocean ridge | N MAR | 36.0830 | -34.0830 | 2630 | 1992 plume only; 1994 plume only |
NELSC, T08C09 and T08C18 | active, inferred | back-arc spreading center | Lau Basin | -15.4030 | -174.2630 | 1800 | 2008 plume only |
SWIR, 51.7 E | active, inferred | mid-ocean ridge | SWIR | -37.4660 | 51.7320 | 1595 | 2008 plume and dredge only |
Tonga Arc, Volcano 16 | active, inferred | arc volcano | Tonga Arc | -24.1883 | -176.8217 | 1400 | 2003 plume and dredge only |
EPR, 27.9 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -27.8670 | -112.9120 | 2180 | 1998 plume only |
GEISEIR site 6, segment K2 | active, inferred | mid-ocean ridge | SEIR | -41.6600 | 81.6617 | 2600 | 2007 plume only; 2010 plume only |
MAR, 14 54'N | active, inferred | mid-ocean ridge | N MAR | 14.9200 | -44.9000 | 3500 | 1988 or earlier seafloor photographs did not confirm hydrothermal activity |
FRSC, Central | active, inferred | back-arc spreading center | Lau Basin | -16.4917 | -174.5417 | 2419 | 2004 plume only |
MAR, segment south of St. Paul system | active, inferred | mid-ocean ridge | N MAR | 0.5000 | -25.0000 | 3500 | 2013 plume only |
New World Seamount | active, inferred | arc volcano | Tabar-Feni Arc | -2.8333 | 152.5333 | 1200 | 2000 or earlier (cruise FR04/00 implies that they already suspected hydrothermal activity); 1994 seamount discovered |
CIR, Segment 3, Hydrothermal Plume Site | active, inferred | mid-ocean ridge | CIR | -24.0000 | 69.6667 | 2840 | 1987 plume only; 2005/2006 plume only |
Knipovich Ridge, 76 48'N | active, inferred | mid-ocean ridge | Knipovich Ridge | 76.7833 | 8.0000 | 3500 | 1996 temperature anomaly and towed video did not confirm activity |
Mata Fa | active, inferred | arc volcano | Lau Basin | -14.9833 | -173.8000 | 2600 | 2010 plume only |
Merian | active, inferred | mid-ocean ridge | S MAR | -26.0166 | -13.8500 | 2550 | 2012 R/V Dayang Yihao; 2013 AUV Abyss plume and side-scan data |
EPR, 11 30'N | active, inferred | mid-ocean ridge | N EPR | 11.4833 | -103.7833 | 2422 | 1981 towed camera and plume did not confirm activity; 1988 submersible Alvin dive #1996 (need reference to confirm activity) |
Tahi Moana 7 | active, inferred | back-arc spreading center | Lau Basin | -15.3300 | -174.2500 | 1940 | 2004 plume only; 2008 plume only; 2009 video camera tow (activity not confirmed) |
VFR, plume 12 | active, inferred | back-arc spreading center | Lau Basin | -21.7300 | -176.4530 | 1910 | 2004 plume only |
94SO2 | active, inferred | back-arc spreading center | New Hebrides back-arc | -19.4000 | 169.9000 | 980 | 1994 towed camera with temperature did not confirm activity |
SWIR, Plume 1, Segment 17 | active, inferred | mid-ocean ridge | SWIR | -31.1830 | 58.5000 | 3600 | 1997 plume only |
EPR, 31.4 S, Segment E4 | active, inferred | mid-ocean ridge | S EPR | -31.4330 | -111.9670 | 2350 | 1998 plume only |
GEISEIR site 30, segment O1 | active, inferred | mid-ocean ridge | SEIR | -46.6240 | 96.0594 | 2500 | 2009 plume only |
GEISEIR site 19, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.8333 | 87.6266 | 2400 | 2009 GEISEIR 1 and 2010 GEISEIR 2 plume only |
Pacific-Antarctic Ridge, 64 S segment | active, inferred | mid-ocean ridge | Pacific-Antarctic Ridge | -64.5000 | -170.0000 | 2300 | 2009 plume only |
Gakkel Ridge, Site 8 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.5333 | 69.0000 | 3500 | 2001 plume only |
Kuiwai | active, inferred | arc volcano | Kermadec Arc | -33.1560 | -179.9560 | 630 | 2002 plume only |
EPR, 16 08'S | active, inferred | mid-ocean ridge | S EPR | -16.1300 | -113.0000 | 2640 | 1993 plume only |
GEISEIR site 2, segment J4 | active, inferred | mid-ocean ridge | SEIR | -41.2520 | 79.1030 | 2800 | 1996 plume and dredge only |
E Los Huellos Caldera | active, inferred | mid-ocean ridge | Galapagos Rift | 0.9500 | -90.5300 | 1600 | 2005 plume only; 2005 towed video Medea did not confirm activity |
Logatchev-3 | active, inferred | mid-ocean ridge | N MAR | 14.7083 | -44.9667 | 3100 | 1993-1999 (between these dates) |
N-ELSC, plume 28 | active, inferred | back-arc spreading center | Lau Basin | -19.6500 | -175.9890 | 2550 | 2004 plume only |
Carlsberg Ridge, CR2003 | active, inferred | mid-ocean ridge | Carlsberg Ridge | 6.0500 | 60.9500 | 3500 | 2003 plume only; 2007 plume only |
EPR, southern 17 N segment | active, inferred | mid-ocean ridge | N EPR | 16.5800 | -105.3000 | 2700 | 1997 plume only |
NELSC, T08C12 | active, inferred | back-arc spreading center | Lau Basin | -15.2179 | -174.1788 | 2000 | 2008 plume only |
CIR, 8-17 S, Segment 3 | active, inferred | mid-ocean ridge | CIR | -10.6600 | 66.5000 | 3500 | 2010 plume only |
MAR, 17 S | active, inferred | mid-ocean ridge | S MAR | -17.2522 | -14.2270 | 3280 | 2013 plume only |
W Syoyo | active, inferred | arc volcano | Mariana Arc | 22.5080 | 142.5330 | 2150 | 2003 plume only |
EPR, 17 S | active, inferred | mid-ocean ridge | S EPR | -17.0000 | -113.1170 | 2680 | 1993 plume only |
Area EX/FX | active, inferred | mid-ocean ridge | CIR | -21.4000 | 68.7666 | 3300 | 1986 plume and sediments |
C-ELSC, plume 13 | active, inferred | back-arc spreading center | Lau Basin | -21.4150 | -176.3720 | 2100 | 2004 plume only |
EPR, 15 S | active, inferred | mid-ocean ridge | S EPR | -15.0000 | -112.7700 | 2640 | 1985/86 or 1989 TV grab (need to check references to confirm activity); 1993 plume only |
VC7 | active, inferred | arc volcano | Hellenic Arc, Aegean Sea | 36.5608 | 25.5250 | 320 | 2010 ROV Hercules |
Knipovich Ridge, 77 40'N | active, inferred | mid-ocean ridge | Knipovich Ridge | 77.6300 | 7.5800 | 3000 | 2000 plume only |
AAR KR1, Mujin | active, inferred | mid-ocean ridge | SEIR | -62.1000 | 158.8000 | 2100 | 2011 plume and biological samples |
S AMAR 2 | active, inferred | mid-ocean ridge | N MAR | 35.9670 | -34.1830 | 2240 | 1992 plume only; 1994 plume only |
FRSC, 14b, 16.31 S | active, inferred | back-arc spreading center | Lau Basin | -16.3110 | -174.5550 | 2380 | 2008 plume only |
SWIR, 53.2 E | active, inferred | mid-ocean ridge | SWIR | -36.1010 | 53.2550 | 2218 | 2008 plume and dredge only |
EPR, 28 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -28.0170 | -112.9040 | 2130 | 1998 plume only |
Stromboli | active, inferred | arc volcano | Aeolian Arc, Tyrrhenian Sea | 38.7890 | 15.2130 | 250 | 1969 Fe crusts only |
MAR, 43 N | active, inferred | mid-ocean ridge | N MAR | 43.0000 | -29.0000 | 3400 | 1986 or earlier plume only |
EPR, 21 40'S | active, inferred | mid-ocean ridge | S EPR | -21.6340 | -114.3010 | 2730 | 1987-1988 deposits only |
GEISEIR site 8, segment K3 | active, inferred | mid-ocean ridge | SEIR | -41.8833 | 81.9816 | 2800 | 2010 plume only |
North FAMOUS | active, inferred | mid-ocean ridge | N MAR | 36.9670 | -32.9670 | 2500 | 1994 plume only |
FRSC, RC 129 and CTD 24 plume sites | active, inferred | back-arc spreading center | Lau Basin | -17.0250 | -174.5017 | 1750 | 2004 plume only; 2004 dredging |
Su Causeway | active, inferred | mid-ocean ridge | SWIR | -38.1000 | 48.6000 | 3000 | 2014 leg 2 or 3 of the 30th Chinese Cruise |
Ngatoroirangi | active, inferred | arc volcano | Kermadec Arc | -33.7310 | 179.8250 | 467 | 2002 plume only |
GEISEIR site 1, segment J2 | active, inferred | mid-ocean ridge | SEIR | -39.4400 | 78.0920 | 2270 | 1996 plume only |
AMAR | active, inferred | mid-ocean ridge | N MAR | 36.3833 | -33.6500 | 2600 | 1992 plume only; 1994 plume only |
VFR, plume 3 | active, inferred | back-arc spreading center | Lau Basin | -22.4000 | -176.6790 | 1980 | 2004 plume only |
SWIR, Plume 2, Segment 16 | active, inferred | mid-ocean ridge | SWIR | -31.0670 | 58.9670 | 4200 | 1997 plume only |
GEISEIR site 31, segment O1 | active, inferred | mid-ocean ridge | SEIR | -46.8956 | 96.5709 | 2600 | 2009 plume only |
GEISEIR site 20, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.9508 | 87.8008 | 2400 | 2010 plume only |
SEIR-WXC25 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 131.9000 | 3050 | 2015 plume only |
EPR, 16 24'S | active, inferred | mid-ocean ridge | S EPR | -16.4000 | -113.0500 | 2640 | 1993 plume only |
C-ELSC, plume 14 | active, inferred | back-arc spreading center | Lau Basin | -21.3200 | -176.3640 | 2100 | 2004 plume only |
N-ELSC, plume 29 | active, inferred | back-arc spreading center | Lau Basin | -19.6000 | -175.9750 | 2700 | 2004 plume only |
EPR/Tamayo intersection | active, inferred | mid-ocean ridge | N EPR | 22.9333 | -108.0667 | 3200 | 1979 submersible Alvin did not confirm activity |
Chile Triple Junction, 10 km north | active, inferred | mid-ocean ridge | Chile Rise | -46.2000 | -75.8333 | 3000 | 2010 plume only |
CIR, 8-17 S, Segment 4, 10.9 S | active, inferred | mid-ocean ridge | CIR | -10.9000 | 66.7000 | 3500 | 2010 plume only |
MAR, 25 S | active, inferred | mid-ocean ridge | S MAR | -25.3350 | -13.6305 | 2570 | 2013 plume only |
South Kurchatov | active, inferred | mid-ocean ridge | N MAR | 40.4670 | -29.5500 | 2900 | 1992 plume only; 1995 plume only |
Mata Taha | active, inferred | arc volcano | Lau Basin | -15.0416 | -173.7833 | 2160 | 2010 plume only |
AAR KR2 | active, inferred | mid-ocean ridge | SEIR | -60.0000 | 152.5000 | 3200 | 2011 plume only |
Kavachi submarine volcano | active, inferred | arc volcano | Solomons Arc | -8.9833 | 157.9667 | 500 | 2000 plume only |
EPR, 1 S | active, inferred | mid-ocean ridge | S EPR | -0.8000 | -102.4600 | 2800 | 2005 plume only |
S Oceanographer | active, inferred | mid-ocean ridge | N MAR | 34.8670 | -36.4330 | 3460 | 1992 plume only |
FRSC, 14b, 16.11 S | active, inferred | back-arc spreading center | Lau Basin | -16.1150 | -174.5680 | 2250 | 2008 plume only |
SWIR, 63.9 E | active, inferred | mid-ocean ridge | SWIR | -27.8510 | 63.9230 | 2759 | 2009 DY115-20 Leg 7 (need reference to confirm activity) |
EPR, 28.3 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -28.3000 | -112.9830 | 2220 | 1998 plume only |
Suakin Deep | active, inferred | mid-ocean ridge | Red Sea | 19.6333 | 38.7333 | 2850 | 1972 deposits only |
MAR, 7 57'S | active, inferred | mid-ocean ridge | S MAR | -7.9500 | -13.4420 | 2600 | 2001 plume only |
EPR, 21 54'S | active, inferred | mid-ocean ridge | S EPR | -21.9000 | -114.5000 | 2800 | 1987-1988 deposits only [need to check Fouquet et al. (1993) for confirmation] |
GEISEIR site 9, segment K3 | active, inferred | mid-ocean ridge | SEIR | -41.9633 | 82.0600 | 2700 | 2010 plume only |
FRSC, South Central | active, inferred | back-arc spreading center | Lau Basin | -16.6667 | -174.5167 | 1820 | 2004 plume only; 2006 plume and chimney samples; 2009 camera tow and sampling (activity not confirmed) |
Bai Causeway | active, inferred | mid-ocean ridge | SWIR | -37.9000 | 48.8000 | 3000 | 2014 leg 2 or 3 of the 30th Chinese Cruise |
EPR, 16 35'S | active, inferred | mid-ocean ridge | S EPR | -16.5830 | -113.0600 | 2650 | 1993 plume only; 1998 submersible Alvin did not confirm activity |
EPR, 11 45'N, OSC | active, inferred | mid-ocean ridge | N EPR | 11.7775 | -103.8300 | 2580 | 1984 Angus camera (or 1985 Argo video) tow with temperature; 1988 submersible Alvin dive #2004 (need reference to confirm activity) |
VFR, plume 4 | active, inferred | back-arc spreading center | Lau Basin | -22.3400 | -176.6590 | 1700 | 2004 plume only |
Krakatau | active, inferred | arc volcano | Banda/Sunda Arc | -6.1020 | 105.4230 | 250 | 2002 CTD/transmissometer and dredge only |
SWIR, Plume 3, Segment 16 | active, inferred | mid-ocean ridge | SWIR | -30.8500 | 59.3830 | 3900 | 1997 plume only |
GEISEIR site 32, segment O2 | active, inferred | mid-ocean ridge | SEIR | -47.1196 | 96.8947 | 2600 | 2009 plume only |
Gorda Ridge, EP96A | active, inferred | mid-ocean ridge | Gorda Ridge | 42.6790 | -126.7820 | 3150 | 1996 camera/temperature tow followed by ROV did not confirm hydrothermal activity |
Wagner Basin | active, inferred | mid-ocean ridge | Gulf of California | 31.0666 | -114.0833 | 120 | 2007 echosounder and grab samples |
SEIR-WXC22 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 132.1000 | 2950 | 2015 plume only |
Kuwae submarine caldera | active, inferred | arc volcano | New Hebrides Arc | -16.8300 | 168.5300 | 484 | 2001 plume and inconclusive grab samples |
Magic Mountain, 3-km south | active, inferred | mid-ocean ridge | Explorer Ridge | 49.7250 | -130.2667 | 1850 | 2002 AUV ABE plume only |
Extensional Relay Zone A | active, inferred | back-arc spreading center | North Fiji Basin | -16.1667 | 177.4167 | 2335 | 1999 towed camera did not confirm activity |
C-ELSC, plume 15 | active, inferred | back-arc spreading center | Lau Basin | -21.2700 | -176.3470 | 2230 | 2004 plume only |
Seven Sisters | active, inferred | mid-ocean ridge | Kolbeinsey Ridge | 71.1500 | -12.7900 | 2200 | 2012 plume only; 2013 ROV Aglantha (may have confirmed); 2013 plume only |
MTJ, T08C05 | active, inferred | back-arc spreading center | Lau Basin | -15.5134 | -174.7407 | 2100 | 2008 plume only |
Chile Triple Junction | active, inferred | mid-ocean ridge | Chile Rise | -46.3000 | -75.8000 | 3000 | 2010 plume only |
CIR, 8-17 S, Segment 4, 11.2 S | active, inferred | mid-ocean ridge | CIR | -11.2000 | 66.5000 | 3800 | 2010 plume only |
Reykjanes Ridge, Area A | active, inferred | mid-ocean ridge | Reykjanes Ridge | 62.4500 | -25.4330 | 500 | NotProvided |
MAR, 30.8 S | active, inferred | mid-ocean ridge | S MAR | -30.8327 | -13.4690 | 2950 | 2013 plume only |
Woodlark Basin, Segment 3B | active, inferred | back-arc spreading center | Woodlark Basin | -9.8000 | 155.0667 | 3300 | 2009 plume only |
Split Seamount | active, inferred | mid-ocean ridge | JdF Ridge | 47.6400 | -128.9667 | 2350 | 1990 camera tow (need reference to check if activity confirmed) |
Fukujin volcano | active, inferred | arc volcano | Mariana Arc | 21.9300 | 143.4700 | 1100 | 1987 deposits only |
Landing Stage | active, inferred | mid-ocean ridge | SWIR | -37.5000 | 51.0000 | 2300 | 2014 leg 2 or 3 of the 30th Chinese Cruise |
CLSC, CL_7 | active, inferred | back-arc spreading center | Lau Basin | -18.1333 | -176.3667 | 2250 | 2009 plume only |
Kolbeinsey Ridge, 69 N | active, inferred | mid-ocean ridge | Kolbeinsey Ridge | 68.7581 | -16.0000 | 1200 | 1980 or earlier sediments only |
MAR, 33 S | active, inferred | mid-ocean ridge | S MAR | -32.9676 | -14.4517 | 2600 | 2013 plume only |
Discovery Deep | active, inferred | mid-ocean ridge | Red Sea | 21.2830 | 38.0500 | 2100 | 1965 "confirmed" hot brine and cored seafloor, but see Table 1 in Miller et al. (1966) for historical measurements |
MAR, 4 02'S | active, inferred | mid-ocean ridge | S MAR | -4.0333 | -12.2500 | 4000 | 2005 plume only |
S-OH1 | active, inferred | mid-ocean ridge | N MAR | 34.5330 | -36.8500 | 3000 | 1996 submersible Nautile did not find active vents; 2000 or earlier plume only |
FRSC, 11a-3 | active, inferred | back-arc spreading center | Lau Basin | -16.7950 | -174.5230 | 2000 | 2008 plume only |
SWIR, D20 | active, inferred | mid-ocean ridge | SWIR | -53.0200 | 22.1880 | 4170 | 2000-2001 plume and dredge only |
Tonga Arc, Volcano 4 | active, inferred | arc volcano | Tonga Arc | -22.0670 | -176.2080 | 200 | 2003 plume and dredge only |
EPR, 28.4 S, Segment W4 | active, inferred | mid-ocean ridge | S EPR | -28.4170 | -112.9640 | 2350 | 1998 plume only |
GEISEIR site 21, segment L3 | active, inferred | mid-ocean ridge | SEIR | -42.0050 | 87.8808 | 2400 | 2010 plume only |
MAR, 8 10'S | active, inferred | mid-ocean ridge | S MAR | -8.1670 | -13.4670 | 2000 | 2001 plume only |
GEISEIR site 11, segment K4 | active, inferred | mid-ocean ridge | SEIR | -42.5375 | 82.8266 | 2600 | 2010 plume only |
NWLSC, Central Caldera | active, inferred | back-arc spreading center | Lau Basin | -15.8000 | -177.2666 | 2200 | 2008 plume and dredge only |
Solwara 16 | active, inferred | back-arc spreading center | Manus Basin | -3.4380 | 149.9670 | 2163 | 2009 commercial ROV Fugro FV300 (activity not confirmed) |
Leyte | active, inferred | arc volcano | Luzon/Bicol Arc | 11.5000 | 124.7000 | 2002 or earlier some indications of activity | |
EPR, 16 43'S | active, inferred | mid-ocean ridge | S EPR | -16.7170 | -113.0680 | 2600 | 1985/86 or 1989 TV grab (need to check references to confirm activity) |
SESCA | active, inferred | mid-ocean ridge | Gorda Ridge | 40.7500 | -127.5200 | 3300 | 1986 sediments and heat-flow measurements |
East Mata submarine volcano | active, inferred | arc volcano | Tonga Arc | -15.1010 | -173.6780 | 1350 | 2008 plume only; 2009 plume only |
Bataan | active, inferred | arc volcano | Luzon/Bicol Arc | 20.0000 | 122.0000 | 2002 or earlier some indications of activity | |
VFR, unnamed | active, inferred | back-arc spreading center | Lau Basin | -22.5150 | -176.6500 | 1970 | 2004 plume only |
EPR, 5 S | active, inferred | mid-ocean ridge | S EPR | -5.0000 | -106.4000 | 2650 | 1980's camera tows; 1993 and 1998 plume only; 1998 submersible Alvin did not confirm activity |
GEISEIR site 33, segment O2 | active, inferred | mid-ocean ridge | SEIR | -47.2383 | 97.1566 | 2700 | 2009 plume only |
Gorda Ridge, EP96B | active, inferred | mid-ocean ridge | Gorda Ridge | 42.5500 | -126.8333 | 3400 | 1984 deposits only; 1996 plume only |
Walsh | active, inferred | mid-ocean ridge | Mid-Cayman Rise | 17.8333 | -81.8333 | 4000 | 2009 plume only; 2013 plume only |
SEIR-WXC17 | active, inferred | mid-ocean ridge | SEIR | -50.3000 | 133.8000 | 2780 | 2015 plume only |
Alarcon Rise/Pescadero intersection | active, inferred | mid-ocean ridge | Gulf of California | 23.6423 | -108.3948 | 2384 | 2015 ROV Doc Ricketts did not confirm activity |
Eye of Mordor Seamount | active, inferred | mid-ocean ridge | Galapagos Rift | 1.9410 | -91.3100 | 1555 | 2005 plume only |
C-ELSC, plume 17 | active, inferred | back-arc spreading center | Lau Basin | -20.9900 | -176.2530 | 2270 | 2004 plume only |
CIR, 8-17 S, Segment 4, 11.3 S | active, inferred | mid-ocean ridge | CIR | -11.3000 | 66.4000 | 3500 | 2010 plume only |
Central Spreading Ridge, Station 19 S | active, inferred | back-arc spreading center | North Fiji Basin | -19.0000 | 173.5000 | 3000 | 1991 submersible Shinkai 6500 did not confirm activity |
TaiJi | active, inferred | mid-ocean ridge | S MAR | -13.5900 | -14.5200 | 3180 | 2011 plume only |
MTJ, T08C03 and T08C04 | active, inferred | back-arc spreading center | Lau Basin | -15.6100 | -174.8200 | 2300 | 2008 plume only |
CIR, 8-17 S, Segment 5, 12.25 S | active, inferred | mid-ocean ridge | CIR | -12.2500 | 65.7000 | 4000 | 2010 plume only |
Reykjanes Ridge, Area B | active, inferred | mid-ocean ridge | Reykjanes Ridge | 59.8167 | -29.6833 | 1000 | 1992 submersible Mir did not find vents |
MAR, 31 S | active, inferred | mid-ocean ridge | S MAR | -31.7377 | -13.3772 | 3050 | 2013 plume only |
Woodlark Basin, Segment 5B | active, inferred | back-arc spreading center | Woodlark Basin | -9.2540 | 156.1910 | 3550 | 1986 plume only; 2000 plume only |
Gakkel Ridge, 7.5 E | active, inferred | mid-ocean ridge | Gakkel Ridge | 85.0167 | 7.4500 | 3600 | 2001 plume only |
CLSC, CL_8 | active, inferred | back-arc spreading center | Lau Basin | -18.0500 | -176.3333 | 2250 | 2009 plume only |
Komba-ridge | active, inferred | arc volcano | Banda/Sunda Arc | -7.9800 | 123.8000 | 1000 | 2001 CTD temperature anomaly and dredged sulfides |
MAR, 30 S | active, inferred | mid-ocean ridge | S MAR | -29.9505 | -13.8545 | 3379 | 2013 plume only |
seamount, Tikopia area | active, inferred | arc volcano | New Hebrides Arc | -12.5433 | 167.7883 | 1425 | 1991 submersible Cyana |
Carlsberg Ridge, 63 40'E | active, inferred | mid-ocean ridge | Carlsberg Ridge | 3.7000 | 63.6666 | 3500 | 2007 plume only |
Kebrit Deep | active, inferred | mid-ocean ridge | Red Sea | 24.7233 | 36.2767 | 1590 | 1972 deposits only |
EPR, 10 08'N | active, inferred | mid-ocean ridge | N EPR | 10.1300 | -104.3300 | 2580 | 1983 towed camera and temperature measurements (no direct observations/sampling of hydrothermal fluid) |
S-OH2 | active, inferred | mid-ocean ridge | N MAR | 34.0670 | -37.4830 | 3250 | 2000 or earlier plume only |
FRSC, T12A-01 | active, inferred | back-arc spreading center | Lau Basin | -17.7850 | -174.5260 | 500 | 2012 plume only |
SWIR, D36 | active, inferred | mid-ocean ridge | SWIR | -52.7490 | 11.7110 | 3981 | 2000-2001 plume and dredge only |
Tonga Arc, Volcano 8 | active, inferred | arc volcano | Tonga Arc | -22.8433 | -176.4317 | 240 | 2003 plume and dredge only |
EPR, 28.7 S, Segment W4 | active, inferred | mid-ocean ridge | S EPR | -28.7000 | -112.9880 | 2350 | 1998 plume only |
GEISEIR site 23, segment M2 | active, inferred | mid-ocean ridge | SEIR | -42.0272 | 89.2205 | 2400 | 2009 plume only |
MAR, south of 15 20'N fracture zone | active, inferred | mid-ocean ridge | N MAR | 15.0833 | -45.0000 | 3000 | 1988 plume only; 1992 submersible Nautile did not observe active vents |
Galapagos Rift, 93.7 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.4970 | -93.7700 | 2220 | 2005 plume only |
GEISEIR site 12, segment K4 | active, inferred | mid-ocean ridge | SEIR | -42.6600 | 83.0366 | 2600 | 2010 plume only |
SEIR-WXC27 | active, inferred | mid-ocean ridge | SEIR | -50.4000 | 134.3000 | 2760 | 2015 plume only |
Shaban Deep | active, inferred | mid-ocean ridge | Red Sea | 26.2250 | 35.3500 | 1540 | 1983 deposits only |
Bayonnaise Knoll caldera | active, inferred | back-arc spreading center | Izu-Bonin back-arc | 31.9667 | 139.7333 | 900 | 2003 temperature anomalies, but camera survey observed inactive vent deposits |
C-ELSC, plume 19 | active, inferred | back-arc spreading center | Lau Basin | -20.8700 | -176.2170 | 2230 | 2004 plume only |
EPR, Manzanillo Spreading Segment | active, inferred | mid-ocean ridge | N EPR | 18.2500 | -106.3000 | 2600 | 1997 plume only |
SWIR, Plume 5 | active, inferred | mid-ocean ridge | SWIR | -27.9170 | 64.4500 | 4000 | 1997 plume only |
GEISEIR site 34, segment O3 | active, inferred | mid-ocean ridge | SEIR | -47.4145 | 97.4373 | 2700 | 2009 plume only |
Gorda Ridge, GR-15 | active, inferred | mid-ocean ridge | Gorda Ridge | 42.9500 | -126.5500 | 3365 | 1985 plume only |
West Fiji Ridge | active, inferred | back-arc spreading center | North Fiji Basin | -17.0000 | 176.0000 | 3000 | 1995 deep tow |
C-ELSC, plume 18 | active, inferred | back-arc spreading center | Lau Basin | -20.9500 | -176.2390 | 2230 | 2004 plume only |
Naung | active, inferred | arc volcano | Sangihe Arc | 3.7791 | 125.3750 | 600 | 2001 dredge only, 2003 CTD only |
ESR, E5 | active, inferred | back-arc spreading center | East Scotia Ridge | -57.5000 | -30.2000 | 3000 | 1999 plume only |
Rainbow Bay | active, inferred | mid-ocean ridge | S MAR | -14.0300 | -14.3400 | 2900 | 2009 towed video did not confirm activity |
MTJ, T08C03, 15.72 S | active, inferred | back-arc spreading center | Lau Basin | -15.7186 | -174.8338 | 2400 | 2008 plume only |
Myojinsho Caldera | active, inferred | arc volcano | Izu-Bonin Arc | 31.8833 | 139.9500 | 1110 | 1988 deposits only; 2005 plume only |
CIR, 8-17 S, Segment 5, 12.6 S | active, inferred | mid-ocean ridge | CIR | -12.6000 | 66.1000 | 3800 | 2010 plume only |
EPR, 22 30'S | active, inferred | mid-ocean ridge | S EPR | -22.5000 | -114.3670 | 2600 | 1985/86 or 1989 TV grab (need to check references to confirm activity) |
Galapagos Rift, 94.4 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.5300 | -94.3300 | 2400 | 2005 plume only |
GEISEIR site 13, segment L1 | active, inferred | mid-ocean ridge | SEIR | -41.0125 | 86.0608 | 2800 | 2010 plume only |
Gakkel Ridge, 85 E | active, inferred | mid-ocean ridge | Gakkel Ridge | 85.6500 | 84.8333 | 3900 | 2001 plume only; 2007 towed video did not confirm activity |
San Felipe | active, inferred | other | Coastal Baja California | 31.0000 | -114.8000 | 1 | 1982 or earlier, likely from shore |
CLSC, northern plumes on CL6 | active, inferred | back-arc spreading center | Lau Basin | -18.1333 | -176.2833 | 2250 | 2009 plume only |
MAR, 28 S | active, inferred | mid-ocean ridge | S MAR | -27.7936 | -13.3730 | 3217 | 2013 plume only |
Carlsberg Ridge, 63 50'E | active, inferred | mid-ocean ridge | Carlsberg Ridge | 3.6916 | 63.8333 | 3500 | 2009 plume only; 2012 plume and deposits |
Kibblewhite | active, inferred | arc volcano | Kermadec Arc | -34.5750 | 179.2550 | 1106 | 2002 plume only |
EPR, 10 34'S | active, inferred | mid-ocean ridge | S EPR | -10.5667 | -110.2800 | 2900 | 1985/86 or 1989 TV grab (need to check references to confirm activity) |
SWIR, D50B | active, inferred | mid-ocean ridge | SWIR | -52.4200 | 12.7480 | 3913 | 2000-2001 plume and dredge only |
EPR, 29.5 S, Segment E1 | active, inferred | mid-ocean ridge | S EPR | -29.5000 | -111.7200 | 2580 | 1998 plume only |
GEISEIR site 24, segment M3 | active, inferred | mid-ocean ridge | SEIR | -43.0369 | 91.0357 | 2400 | 2009 plume only |
SEIR-WXC15 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 135.3000 | 3000 | 2015 plume only |
Solwara 18 | active, inferred | back-arc spreading center | Manus Basin | -3.0760 | 147.2390 | 1308 | 2008 plumes with some sites subsequently observed with ROV; 2009 commercial ROV Fugro FV300 (activity not confirmed) |
Little Volcano | active, inferred | back-arc spreading center | Bransfield Strait | -62.7500 | -59.2500 | 1500 | 1995 plume only |
Edison Seamount | active, inferred | arc volcano | Tabar-Feni Arc | -3.3100 | 152.5800 | 1450 | 1994 and 1998 TV grab sampling did not confirm hydrothermal activity |
C-ELSC, unnamed | active, inferred | back-arc spreading center | Lau Basin | -21.1070 | -176.2920 | 2300 | 2004 (assume submersible Shinkai 6500); 2004 plume only on previous cruise |
EPR, mid 17 N segment | active, inferred | mid-ocean ridge | N EPR | 17.0000 | -105.3800 | 2750 | 1997 plume only |
SWIR, Plume 6 | active, inferred | mid-ocean ridge | SWIR | -27.7670 | 65.1330 | 3200 | 1997 plume only |
Momoko | active, inferred | back-arc spreading center | Lau Basin | -22.6400 | -176.7210 | 2180 | 1989 submersible Nautile |
EPR, 7 S | active, inferred | mid-ocean ridge | S EPR | -7.0000 | -107.5500 | 2600 | 1985/86 or 1989 TV grab |
GEISEIR site 35, segment O3 | active, inferred | mid-ocean ridge | SEIR | -47.6179 | 97.8678 | 2600 | 2009 plume only |
Putoto volcanic center | active, inferred | arc volcano | Kermadec Arc | -27.6800 | -177.6100 | 700 | 2004 plume and dredging NZAPLUME III expedition |
Makhahnas | active, inferred | arc volcano | Mariana Arc | 20.5300 | 144.8833 | 420 | 2003 no plume detected |
MTJ, T08C01 | active, inferred | back-arc spreading center | Lau Basin | -15.9629 | -174.7961 | 2400 | 2008 plume only |
N Oceanographer | active, inferred | mid-ocean ridge | N MAR | 35.2830 | -34.8670 | 2600 | 1992 plume only |
CLSC, southern plumes on CL6 | active, inferred | back-arc spreading center | Lau Basin | -18.5000 | -176.3833 | 2250 | 2009 plume only |
CIR, 8-17 S, Segment 6, 14.75 S | active, inferred | mid-ocean ridge | CIR | -14.7500 | 66.5000 | 3400 | 2010 plume only |
MTJ, V12A-04 | active, inferred | back-arc spreading center | Lau Basin | -15.9540 | -174.7110 | 1330 | 2012 plume only |
Tonga Arc, Volcano A | active, inferred | arc volcano | Tonga Arc | -20.8600 | -175.5500 | 700 | 2004 plume only |
Mohns Ridge, 72.8 N | active, inferred | mid-ocean ridge | Mohns Ridge | 72.8060 | 4.1650 | 2300 | 2013 plume only |
Mariana Trough, plume 2 | active, inferred | back-arc spreading center | Mariana Trough | 12.7610 | 143.4730 | 2950 | 2003 plume only |
Galapagos Rift, 94.7 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.6000 | -94.7750 | 2690 | 2005 plume only |
GEISEIR site 14, segment L1 | active, inferred | mid-ocean ridge | SEIR | -41.0716 | 86.1550 | 2700 | 2010 plume only |
Gakkel Ridge, Site 2 | active, inferred | mid-ocean ridge | Gakkel Ridge | 83.8500 | -2.0000 | 3900 | 2001 plume only |
Nishinoshima Island | active, inferred | arc volcano | Izu-Bonin Arc | 27.2367 | 140.8783 | 5 | 1975 SCUBA |
CLSC, plumes on CL1 | active, inferred | back-arc spreading center | Lau Basin | -17.8667 | -176.3833 | 2250 | 2009 plume only |
Kos, south | active, inferred | arc volcano | Hellenic Arc, Aegean Sea | 36.6667 | 27.2500 | 450 | 1997 plume only |
MAR, 27 S | active, inferred | mid-ocean ridge | S MAR | -27.1476 | -13.4753 | 3341 | 2013 plume only |
GEISEIR site 22, segment L3 | active, inferred | mid-ocean ridge | SEIR | -42.1130 | 88.0420 | 2400 | 1996 plume only; 2009 plume only |
Douglas Strait caldera, Thule Island, South Sandwich Islands | active, inferred | arc volcano | South Sandwich Arc | -59.4167 | -27.3333 | 625 | 2009 plume only; 2008 or earlier high resolution bathymetry only |
Atlantis II Deep | active, inferred | mid-ocean ridge | Red Sea | 21.3417 | 38.0750 | 2200 | 1965 "confirmed" hot brine and cored seafloor, but see Table 1 in Miller et al. (1966) for historical measurements |
SWIR, D54 | active, inferred | mid-ocean ridge | SWIR | -52.4370 | 13.3120 | 4029 | 2000-2001 plume and dredge only |
EPR, 29.8 S, Segment E1 | active, inferred | mid-ocean ridge | S EPR | -29.8000 | -111.7300 | 2580 | 1998 plume only |
GEISEIR site 25, segment M4 | active, inferred | mid-ocean ridge | SEIR | -43.3115 | 92.1335 | 2700 | 2009 plume only |
Grimsey Field | active, confirmed | mid-ocean ridge | Kolbeinsey Ridge | 66.6067 | -17.6542 | 400 | 1997 submersible Jago |
Higashi-Ensei | active, confirmed | back-arc spreading center | Okinawa Trough | 28.4393 | 128.1724 | 1220 | 2016 ROV Kaiko dives 723 and 724 |
West Rota volcano | active, confirmed | arc volcano | Mariana Arc | 14.3250 | 144.8330 | 1150 | 2005 ROV Hyper-Dolphin; 2003 plume only; 2004 ROV ROPOS did not observe venting |
Niuatahi | active, confirmed | back-arc spreading center | Lau Basin | -15.3790 | -174.0196 | 1635 | 2009 ROV Jason II; 2003 plume only; 2004 dredging (SS11/2004 cruise); 2005 plume only; 2008 commercial ROV (report does not confirm activity) |
Si'iSi'i | active, confirmed | back-arc spreading center | Lau Basin | -22.2900 | -176.6290 | 1950 | 2008 commercial ROV; 2003 plume only |
Edmond Field | active, confirmed | mid-ocean ridge | CIR | -23.8780 | 69.5960 | 3320 | 2001 ROV Jason |
Teotihuacan | active, confirmed | mid-ocean ridge | N EPR | 15.7333 | -105.4333 | 2300 | 2010 submersible Nautile; 1997 plume only |
Calyfield | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.8300 | -89.6083 | 1660 | 2002 submersible Alvin |
Kodakara-jima | active, confirmed | arc volcano | Ryukyu Arc | 29.2166 | 129.3333 | 10 | 1993 or earlier, likely by SCUBA |
Monowai Caldera | active, confirmed | arc volcano | Tonga Arc | -25.8000 | -177.1500 | 1165 | 2005 with submersibles PISCES IV and PISCES V and ROV RCV-150; 2004 plume only |
Hine Hina | active, confirmed | back-arc spreading center | Lau Basin | -22.5300 | -176.6970 | 1900 | 1989 submersible Nautile |
EPR, 23 50'S | active, confirmed | mid-ocean ridge | S EPR | -23.8233 | -115.4558 | 2650 | 2005 submersible Alvin; 1990 or earlier towed TV camera did not confirm activity |
Stanton Seamount | active, confirmed | arc volcano | New Hebrides Arc | -10.8670 | 166.7000 | 800 | 2002 towed video |
Alarcon Rise, Tzab-ek | active, confirmed | mid-ocean ridge | Gulf of California | 23.3526 | -108.5597 | 2249 | 2015 ROV Doc Ricketts |
Floc | active, confirmed | mid-ocean ridge | JdF Ridge | 46.3133 | -129.7050 | 2290 | 1993 DEEPTOW and submersible Alvin |
Bubbylon | active, confirmed | mid-ocean ridge | N MAR | 37.8000 | -31.5333 | 1000 | 2010 ROV MARUM-QUEST, same cruise as plume discovered by multibeam echosounder |
FRSC, Fonualei South | active, confirmed | back-arc spreading center | Lau Basin | -17.5352 | -174.5668 | 1620 | 2012 ROV Quest 4000 |
Kolumbo | active, confirmed | arc volcano | Hellenic Arc, Aegean Sea | 36.5250 | 25.4833 | 500 | 2006 ROV Hercules |
Kaikata Seamount | active, confirmed | arc volcano | Izu-Bonin Arc | 26.7000 | 141.0833 | 930 | 1988 submersible Shinkai 2000; 1985 dredge only |
Ruby | active, confirmed | arc volcano | Mariana Arc | 15.6200 | 145.5700 | 214 | 2006 ROV Jason II; 2003 plume only |
EPR, 3.9 N offset | active, confirmed | mid-ocean ridge | N EPR | 3.9170 | -102.2330 | 2875 | 1989 or earlier Deep Tow photographs (cruise RIFTS or PAPATUA) |
Mariana Trough, Central Trough | active, confirmed | back-arc spreading center | Mariana Trough | 18.0467 | 144.7533 | 3676 | 1987 submersible Alvin |
White Island | active, confirmed | back-arc spreading center | Taupo Volcanic Zone | -37.5191 | 177.1953 | 30 | 1989 or earlier, likely SCUBA |
Nisiros | active, confirmed | arc volcano | Hellenic Arc, Aegean Sea | 36.5600 | 27.1400 | 18 | 1994 or earlier, likely by SCUBA |
Doyo Seamount | active, confirmed | arc volcano | Izu-Bonin Arc | 27.6833 | 140.8167 | 520 | 1990 submersible Shinkai 2000 |
Aden | active, confirmed | mid-ocean ridge | Aden Ridge | 11.9500 | 43.6667 | 1600 | 1984 submersible Cyana |
Kilo Moana | active, confirmed | back-arc spreading center | Lau Basin | -20.0532 | -176.1336 | 2620 | 2004 AUV ABE; 2004 plume only on previous cruise |
Aurora | active, confirmed | mid-ocean ridge | Gakkel Ridge | 82.8833 | -6.2500 | 4100 | 2001 shimmering water in camera tow and sulfide chimney in dredge |
Vai Lili | active, confirmed | back-arc spreading center | Lau Basin | -22.2151 | -176.6083 | 1764 | 1989 submersible Nautile |
EPR, 8 38'N | active, confirmed | mid-ocean ridge | N EPR | 8.6333 | -104.2000 | 2550 | 2003 submersible Alvin; 1989 dredge only; 2002 plume only |
Rainbow | active, confirmed | mid-ocean ridge | N MAR | 36.2300 | -33.9020 | 2320 | 1997 submersible Nautile |
Grover Seamount | active, confirmed | arc volcano | Solomons Arc | -10.4667 | 164.2500 | 600 | 2002 towed video |
Futagoyama | active, confirmed | back-arc spreading center | Okinawa Trough | 24.8674 | 123.3081 | 1270 | 2016 ROV Kaiko dive 717 |
Vulcano | active, confirmed | arc volcano | Aeolian Arc, Tyrrhenian Sea | 38.4000 | 15.0000 | 8 | 1960's shallow vents |
EPR, 17 44'S | active, confirmed | mid-ocean ridge | S EPR | -17.7330 | -113.2660 | 2622 | 1998 submersible Alvin; 1993 plume only; not explored by Nautile in 1993 or Shinkai 6500 in 1994 |
Snail | active, confirmed | back-arc spreading center | Mariana Trough | 12.9533 | 143.6200 | 2880 | 2003 ROV Jason II; 2003 plume only |
Lucky Strike | active, confirmed | mid-ocean ridge | N MAR | 37.2933 | -32.2733 | 1740 | 1993 submersible Alvin; 1992 dredge and plume only |
Bounty Seamount | active, confirmed | intra-plate volcano | Central Pacific | -25.1667 | -129.4000 | 420 | 1999 submersible Nautile; 1989 plume only |
Calypso Vents | active, confirmed | back-arc spreading center | Taupo Volcanic Zone | -37.6800 | 177.1170 | 200 | 1989 submersible Soucoup |
EPR, Ridge 1, 20 40'S | active, confirmed | mid-ocean ridge | S EPR | -20.8333 | -114.1667 | 3000 | 1983 Deep Tow camera |
Hinepuia volcanic center | active, confirmed | arc volcano | Kermadec Arc | -26.3900 | -177.2600 | 300 | 2013 HOV Shinkai 6500; 2004 plume and dredging NZAPLUME III expedition |
Mariana Trough, 15.5 N | active, confirmed | back-arc spreading center | Mariana Trough | 15.4080 | 144.5090 | 4196 | 2015 plume only, 2016 ROV did not confirm |
SuSu Knolls | active, confirmed | back-arc spreading center | Manus Basin | -3.8000 | 152.1000 | 1520 | 1996 towed camera/video; 1993 plume only |
EPR, 26 10'S | active, confirmed | mid-ocean ridge | S EPR | -26.2050 | -112.6133 | 2600 | 1987 or earlier [need to check Marchig & Gundlach (1987)]; 2005 submersible Alvin did not observe active vents |
Starfish Seamount, Tinakula | active, confirmed | back-arc spreading center | New Hebrides back-arc | -12.2028 | 167.6139 | 1204 | 2011 commercial ROV; 1989 plume only; 1989 towed camera survey did not confirm activity; 2002 plume and dredge only |
EPR, 20 06'S | active, confirmed | mid-ocean ridge | S EPR | -20.1000 | -113.7080 | 3000 | 1981 Angus camera tow; 1984 submersible Cyana |
Flow | active, confirmed | mid-ocean ridge | JdF Ridge | 46.5250 | -129.5783 | 2390 | 1993 ROV ROPOS |
Tarama Knoll | active, confirmed | back-arc spreading center | Okinawa Trough | 25.0916 | 124.5416 | 1990 | 2009 ROV HyperDolphin |
Mata Fitu | active, confirmed | arc volcano | Lau Basin | -14.9166 | -173.7833 | 2750 | 2010 towed camera |
Niua North | active, confirmed | arc volcano | Tonga Arc | -15.0667 | -173.5667 | 1375 | 2012 ROV Quest 4000; 2008 plume only |
Salty Dawg Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9822 | -129.0756 | 2200 | 1995 submersible Alvin, followed by ROV ROPOS |
Kairei Field | active, confirmed | mid-ocean ridge | CIR | -25.3195 | 70.0400 | 2460 | 2000 ROV Kaiko; 1993 plume only |
Methana | active, confirmed | arc volcano | Hellenic Arc, Aegean Sea | 37.6150 | 23.3360 | 10 | nearshore: since antiquity; offshore: 1997 SCUBA |
Mariner | active, confirmed | back-arc spreading center | Lau Basin | -22.1800 | -176.6017 | 1910 | 2003 plume and camera tow; 2004 submersible Shinkai 6500 |
Nolan's Nook | active, confirmed | mid-ocean ridge | S EPR | -31.1500 | -111.9167 | 2330 | 1999 submersible Alvin; 1998 plume only |
Kraternaya Bight, Ushishir Volcano | active, confirmed | arc volcano | Kuril Arc | 47.5167 | 152.8000 | 60 | 1985 SCUBA |
Axial Seamount, ASHES | active, confirmed | mid-ocean ridge | JdF Ridge | 45.9333 | -130.0140 | 1540 | 1984 submersible Alvin |
EPR, 11 17'N | active, confirmed | mid-ocean ridge | N EPR | 11.2833 | -103.7583 | 2560 | 1984 Angus camera (or 1985 Argo video) tow with temperature |
Vailulu'u Seamount | active, confirmed | intra-plate volcano | Central Pacific | -14.2167 | -169.0667 | 1000 | 2005 submersible Pisces V; 2000 plume only |
Daisan-Kume Knoll | active, confirmed | arc volcano | Ryukyu Arc | 26.3020 | 126.4125 | 1370 | 2015 ROV Kaiko; 2014 ROV Hyper Dolphin 3000 Dive 1761 may have confirmed; 2014 AUV temperature anomaly |
Sonne 99 | active, confirmed | back-arc spreading center | North Fiji Basin | -16.9500 | 173.9167 | 1980 | 1995 deep tow video and TV-grab |
Vulkanolog | active, confirmed | arc volcano | Kermadec Arc | -30.6870 | -178.4530 | 130 | 1979 and 1998 (need to check references); 2002 plume not detected NZAPLUME II |
Snake Pit | active, confirmed | mid-ocean ridge | N MAR | 23.3683 | -44.9500 | 3500 | 1985 real-time TV and imaging sonar; earlier in 1985 seafloor photographs did not confirm activity |
Broken Spur | active, confirmed | mid-ocean ridge | N MAR | 29.1700 | -43.1717 | 3100 | 1993 submersible Alvin; earlier in 1993, water column anomalies and towed camera did not confirm activity |
Capo Miseno, Gulf of Naples | active, confirmed | other | Coastal Italy | 40.7833 | 14.0833 | 20 | 1982 or earlier, likely by SCUBA |
EPR, Ridge 3, 20 40'S | active, confirmed | mid-ocean ridge | S EPR | -20.3333 | -113.6792 | 3050 | 1983 Deep Tow camera |
Tempus Fugit | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.7683 | -85.9100 | 2560 | 2011 ROV Little Hercules |
Montserrat Offshore Springs | active, confirmed | arc volcano | Lesser Antilles Arc | 16.7100 | -62.2300 | 10 | 1996 or earlier (assume SCUBA) |
Rumble III volcano | active, confirmed | arc volcano | Kermadec Arc | -35.7333 | 178.4667 | 380 | 2000 towed camera; 1999 plume only |
EPR, 26.5 S | active, confirmed | mid-ocean ridge | S EPR | -26.4833 | -112.6250 | 2064 | 1993 submersible Nautile (or earlier) |
Ringvent | active, confirmed | mid-ocean ridge | Gulf of California | 27.5083 | -111.6792 | 1740 | 2016 submersible Alvin; 2009 towed camera/CTD/bottles |
Forecast | active, confirmed | arc volcano | Mariana Arc | 13.4000 | 143.9166 | 1470 | 1992 submersible Shinkai 6500 |
Epi Caldera | active, confirmed | arc volcano | New Hebrides Arc | -16.6870 | 168.4000 | 320 | 2013 ROV Kiel6000; 1974 sediment samples only; 2001 plume and camera tow (did not confirm activity) |
Omuro Hole | active, confirmed | arc volcano | Izu-Bonin Arc | 34.5467 | 139.4417 | 200 | 2012 ROV Hyper-Dolphin |
Kulo Lasi | active, confirmed | back-arc spreading center | Lau Basin | -14.9200 | -177.2500 | 1478 | 2010 submersible Nautile |
EPR, 9 17'N | active, confirmed | mid-ocean ridge | N EPR | 9.2800 | -104.2166 | 2585 | 1989 Argo I towed video |
Middle Valley, Bent Hill Massive Sulfide | active, confirmed | mid-ocean ridge | JdF Ridge | 48.4341 | -128.6812 | 2440 | 1990 HOV Alvin, 1985 deposits only |
North Cleft, high temperature | active, confirmed | mid-ocean ridge | JdF Ridge | 44.9800 | -130.2000 | 2300 | 1987 camera/CTD tows discovered low-temperature vents; 1988 submersible Alvin sampled low-temperature vents; 1990 submersible Alvin discovered black smoker |
Kueishan Island | active, confirmed | back-arc spreading center | Okinawa Trough | 24.8333 | 121.9500 | 30 | 1999, likely by SCUBA |
AHA Field | active, confirmed | mid-ocean ridge | N EPR | 1.7333 | -102.2830 | 2850 | 2000 towed imaging ARGO-II |
Logatchev-1 | active, confirmed | mid-ocean ridge | N MAR | 14.7520 | -44.9785 | 3050 | 1993-1994 TV grab and towed photo system; 1995 submersible Mir followed by submersible Nautile |
Axial Seamount, CASM | active, confirmed | mid-ocean ridge | JdF Ridge | 45.9892 | -130.0272 | 1580 | 1983 submersible Pisces IV |
EPR, 11 18'S | active, confirmed | mid-ocean ridge | S EPR | -11.3000 | -110.5300 | 2650 | 1985/86 or 1989 TV grab (need to check references to confirm activity); 1998 submersible Alvin |
TAG | active, confirmed | mid-ocean ridge | N MAR | 26.1367 | -44.8267 | 3670 | 1985 towed camera and temperature anomaly; 1986 submersible Alvin |
Mothra Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9233 | -129.1082 | 2270 | 1996 ROV ROPOS; 1986 plume only |
Hook Ridge | active, confirmed | back-arc spreading center | Bransfield Strait | -62.1940 | -57.2745 | 1080 | 1997 hot sediment; 1995 plume only; 1999 even hotter sediment |
Rapa Nui | active, confirmed | mid-ocean ridge | S EPR | -21.5620 | -114.3000 | 2845 | 1999 submersible Alvin; 1987-1988 deposits only |
Guaymas Basin, Southern Trough | active, confirmed | mid-ocean ridge | Gulf of California | 27.0148 | -111.4109 | 2000 | 1982 submersible Alvin; 1980 DeepTow CTD and dredging |
Higa | active, confirmed | back-arc spreading center | Okinawa Trough | 26.5550 | 126.2233 | 1485 | 2015 ROV Kaiko |
Piip Submarine Volcano | active, confirmed | arc volcano | Aleutian Arc, western | 55.4167 | 167.2717 | 500 | 1990 Mir submersible; 1981 R/V "Vulcanolog" cruise; 1987 (or 1986) echo-sounder fluid discharge |
Whale Island | active, confirmed | back-arc spreading center | Taupo Volcanic Zone | -37.8600 | 176.9800 | 42 | 1990 or earlier, likely by SCUBA |
Soria Moria | active, confirmed | mid-ocean ridge | Mohns Ridge | 71.2593 | -5.8146 | 750 | 2005 ROV BIODEEP-05 cruise |
Solitaire Field | active, confirmed | mid-ocean ridge | CIR | -19.5450 | 65.8500 | 2630 | 2009 submersible Shinkai 6500; 2006 plume only |
Luise Harbor, Lihir Island | active, confirmed | arc volcano | Tabar-Feni Arc | -3.1167 | 152.6500 | 30 | 1990 or earlier |
Brothers volcano | active, confirmed | arc volcano | Kermadec Arc | -34.8667 | 179.0667 | 1800 | 1998 towed camera; 1996 dredging only |
EPR, 14 S | active, confirmed | mid-ocean ridge | S EPR | -13.9667 | -112.4667 | 2635 | 1985/86 or 1989 TV grab (need to check references to confirm activity); 1993 plume only; 1994 submersible Shinkai 6500 |
Tonga Arc, Volcano 1 | active, confirmed | arc volcano | Tonga Arc | -21.1500 | -175.7500 | 210 | 2005 with submersibles PISCES IV and PISCES V and ROV RCV-150; 2003 plume and dredge only |
Capo Palinuro | active, confirmed | other | Coastal Italy | 40.0167 | 15.2667 | 30 | 1990 or earlier, likely by SCUBA |
Pegasus | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.7500 | -88.2000 | 2000 | 2011 ROV Little Hercules |
Enarete Seamount | active, confirmed | arc volcano | Aeolian Arc, Tyrrhenian Sea | 38.6250 | 14.0000 | 600 | 2011 ROV Hercules; 1976 Fe crusts only; 1997 manganese crust only; 2007 plume only |
Rumble V volcano | active, confirmed | arc volcano | Kermadec Arc | -36.1333 | 178.1833 | 755 | 2001 towed camera; 1999 plume and dredged mussel shells |
Niua South | active, confirmed | arc volcano | Tonga Arc | -15.1650 | -173.5700 | 1180 | 2008 commercial ROV |
Longqi | active, confirmed | mid-ocean ridge | SWIR | -37.7838 | 49.6494 | 2785 | 2007 towed video sled followed by AUV ABE; 2005 plume only |
Stealth | active, confirmed | mid-ocean ridge | S EPR | -17.6167 | -113.2330 | 2600 | 1996 Argo II towed video; 1993 plume only; 1998 submersible Alvin |
Irinovskoye | active, confirmed | mid-ocean ridge | N MAR | 13.3327 | -44.9099 | 3000 | 2013 ROV Victor6000; 2007 dredge only; 2009 or 2011 did not confirm |
Franklin Seamount | active, confirmed | back-arc spreading center | Woodlark Basin | -9.9083 | 151.8300 | 2366 | 1990 submersible Mir |
Deyin-1 | active, confirmed | mid-ocean ridge | S MAR | -15.1666 | -13.3558 | 2850 | 2012 TV-grab; 2011 deposits only; 2013 plume only |
NESCA | active, confirmed | mid-ocean ridge | Gorda Ridge | 41.0000 | -127.4917 | 3300 | 1988 submersible Alvin; 1986 dredge and photographs did not confirm activity |
Daikoku volcano | active, confirmed | arc volcano | Mariana Arc | 21.3240 | 144.1940 | 450 | 2004 ROV ROPOS; 2003 plume only |
Von Damm | active, confirmed | mid-ocean ridge | Mid-Cayman Rise | 18.3777 | -81.7972 | 2372 | 2010 AUV Autosub6000 and HyBIS TVG; 2009 plume only |
EPR, 11 24'N | active, confirmed | mid-ocean ridge | N EPR | 11.4000 | -103.7800 | 2580 | 1990 submersible Alvin; 1988 submersible Alvin dive #1994 (need reference to confirm activity) |
Tahi Moana 2 | active, confirmed | back-arc spreading center | Lau Basin | -21.9200 | -176.5330 | 1870 | 1989 submersible Nautile (need reference to check if activity confirmed); 2004 plume only; 2008 commercial ROV (report does not confirm activity) |
EPR, 9 30'N | active, confirmed | mid-ocean ridge | N EPR | 9.5167 | -104.2414 | 2580 | 1989 Argo I towed video |
Middle Valley, Dead Dog Vent Field | active, confirmed | mid-ocean ridge | JdF Ridge | 48.4560 | -128.7088 | 2450 | 1990 HOV Alvin |
Marsili | active, confirmed | back-arc spreading center | Tyrrhenian Back-Arc Basin, Tyrrhenian Sea | 39.2600 | 14.3780 | 800 | 2006 ROV Cherokee; 1989 shimmering water but did not confirm activity |
North Cleft, low temperature | active, confirmed | mid-ocean ridge | JdF Ridge | 44.8833 | -130.2667 | 2250 | 1987-1989 camera/CTD tows |
Kueishan Island, offshore | active, confirmed | back-arc spreading center | Okinawa Trough | 24.8333 | 122.0000 | 1200 | 2008 or earlier |
Logatchev-2 | active, confirmed | mid-ocean ridge | N MAR | 14.7200 | -44.9380 | 2760 | 2007 ROV VICTOR 6000; 1993-1994 TV grab and towed photo system did not confirm activity; 1996-1998 video imaging and sampling did not confirm activity |
Axial Seamount, International District | active, confirmed | mid-ocean ridge | JdF Ridge | 45.9266 | -129.9795 | 1544 | 1986 submersible Pisces IV |
Uka Pacha | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.7700 | -88.3000 | 2100 | 2011 ROV Little Hercules |
Mounds and Microbes | active, confirmed | mid-ocean ridge | N EPR | 9.4500 | -104.5383 | 2950 | 2002 submersible Alvin; 1994 submersible Alvin did not confirm activity |
Hot Beach, Mendeleev Volcano | active, confirmed | arc volcano | Kuril Arc | 43.9760 | 145.7360 | 1 | 1990 or earlier, from the beach |
Pika | active, confirmed | back-arc spreading center | Mariana Trough | 12.9183 | 143.6483 | 2990 | 2003 submersible Shinkai 6500; 2003 plume only |
White Church | active, confirmed | back-arc spreading center | Lau Basin | -21.9612 | -176.5234 | 1960 | 1989 submersible Nautile; 2004 plume survey |
Guaymas Basin, Northern Trough_2 | active, confirmed | mid-ocean ridge | Gulf of California | 27.4110 | -111.3879 | 1800 | 2015 ROV Hybis |
Source | active, confirmed | mid-ocean ridge | JdF Ridge | 46.1550 | -129.8100 | 2055 | 1993 submersible Alvin |
Macauley Caldera | active, confirmed | arc volcano | Kermadec Arc | -30.2140 | -178.7210 | 500 | 2002 towed camera TAN0205 cruise |
Evan | active, confirmed | mid-ocean ridge | N MAR | 37.2667 | -32.2833 | 1775 | 2006 submersible Nautile |
Espalamaca | active, confirmed | intra-plate volcano | 38.5500 | -28.6000 | 50 | 2010 or earlier likely SCUBA | |
Santorini | active, confirmed | arc volcano | Hellenic Arc, Aegean Sea | 36.4333 | 25.4000 | 400 | 1960's, likely by SCUBA; 2006 deeper vents HOV Thetis and AUV SeaBED |
Deception Island | active, confirmed | back-arc spreading center | Bransfield Strait | -62.9500 | -60.6500 | 100 | 1995 or earlier intertidal |
Kasuga 2 Seamount | active, confirmed | arc volcano | Mariana Arc | 21.6000 | 143.6167 | 500 | 1987 submersible Alvin |
TOTO Caldera | active, confirmed | arc volcano | Mariana Arc | 12.7167 | 143.5333 | 2960 | 2000 deep-tow camera (later, same year - ROV Kaiko); 1998 or earlier hydrothermal deposits dredged; 1998 plume only |
Steinaholl Vent Field | active, confirmed | mid-ocean ridge | Reykjanes Ridge | 63.1000 | -24.5333 | 350 | 1990 plume, echosounding, and towed video; 1993 plume only (included echosounding for more precise location) |
MAR, 4 48'S | active, confirmed | mid-ocean ridge | S MAR | -4.8058 | -12.3742 | 3050 | 2005 AUV ABE (cruise CD169 ) followed by ROV Quest (cruise M64/1) |
EPR, 21 25'S | active, confirmed | mid-ocean ridge | S EPR | -21.4333 | -114.2917 | 2850 | 1984 submersible Cyana; 1983 deposits only |
Baby Bare Seamount | active, confirmed | mid-ocean ridge | JdF Ridge | 47.7100 | -127.7870 | 2600 | 1995 submersible Alvin |
EPR, 9 33'N | active, confirmed | mid-ocean ridge | N EPR | 9.5583 | -104.2500 | 2574 | 1989 Argo I towed video; 1991 submersible Alvin |
Milos | active, confirmed | arc volcano | Hellenic Arc, Aegean Sea | 36.6667 | 24.5167 | 200 | 1987 or earlier, likely by SCUBA; 1992 Minirover ROV deeper sites |
Mata Tolu | active, confirmed | arc volcano | Lau Basin | -15.0049 | -173.7936 | 1900 | 2010 towed camera; 2009 plume and dredge only |
Giggenbach volcano | active, confirmed | arc volcano | Kermadec Arc | -30.0333 | -178.7167 | 180 | 2005 submersible PISCES V; 2002 plume only |
NE Pual | active, confirmed | back-arc spreading center | Manus Basin | -3.6754 | 151.7272 | 1875 | 2006 ROV Jason II |
Solwara 11 | active, confirmed | back-arc spreading center | Manus Basin | -3.1667 | 147.1917 | 1500 | 2008 commercial ROV; 2000 submersible Nautile did not confirm activity |
Alice Springs Field | active, confirmed | back-arc spreading center | Mariana Trough | 18.2103 | 144.7073 | 3640 | 1987 submersible Alvin; 1982 plume only |
Adventure Caldera | active, confirmed | arc volcano | South Sandwich Arc | -59.7210 | -27.8571 | 520 | 2011 SHRIMP towed camera system; 2010 high resolution bathymetry only |
Iguanas-Pinguinos | active, confirmed | mid-ocean ridge | Galapagos Rift | 2.1000 | -91.9350 | 1640 | 2005 towed video Medea |
Red Seamount | active, confirmed | mid-ocean ridge | N EPR | 20.8033 | -109.3783 | 2000 | 1982 submersible Alvin |
Havre | active, confirmed | arc volcano | Kermadec Arc | -31.0970 | -179.0340 | 1505 | 2015 ROV Jason II; 2002 plume only |
Pito Seamount | active, confirmed | mid-ocean ridge | S EPR | -23.3275 | -111.6402 | 2270 | 1993 submersible Nautile |
White Lady | active, confirmed | back-arc spreading center | North Fiji Basin | -16.9833 | 173.9167 | 2000 | 1988 towed camera and plume; 1989 submersible Nautile |
Hafa Adai | active, confirmed | back-arc spreading center | Mariana Trough | 16.9570 | 144.8680 | 3294 | 2016 ROV Deep Discoverer; 2015 AUV Sentry plume mapping |
South Cleft | active, confirmed | mid-ocean ridge | JdF Ridge | 44.6667 | -130.3667 | 2250 | 1981 deep-tow photographs; 1984 submersible Alvin |
Isafjardardjup bay | active, confirmed | 66.0500 | -22.6500 | 3 | 1986 or earlier, likely from shore or by SCUBA | ||
Macdonald Seamount | active, confirmed | intra-plate volcano | Central Pacific | -28.9833 | -140.2500 | 150 | 1989 submersible Cyana |
Clark volcano | active, confirmed | arc volcano | Kermadec Arc | -36.4490 | 177.8400 | 930 | 2005 submersible Pisces V; 1999 plume only |
Mata Ua | active, confirmed | arc volcano | Lau Basin | -15.0166 | -173.7833 | 2397 | 2012 ROV Quest 4000; 2010 plume only (towed camera did not confirm) |
Prony Bay | active, confirmed | other | -22.3333 | 166.8333 | 50 | 1979 or earlier, likely SCUBA | |
Sasquatch Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9969 | -129.0662 | 2200 | 2000 submersible Alvin |
Kasuga 3 Seamount | active, confirmed | arc volcano | Mariana Arc | 21.3833 | 143.6000 | 1140 | 1987 submersible Alvin |
Tow Cam | active, confirmed | back-arc spreading center | Lau Basin | -20.3169 | -176.1367 | 2700 | 2004 AUV ABE; 2004 plume only on previous cruise |
Tonga Arc, Volcano 18 | active, confirmed | arc volcano | Tonga Arc | -24.5850 | -176.9170 | 1465 | 2011 ROV MAGNUM; 2003 plume and dredge only |
East Blanco Depression | active, confirmed | mid-ocean ridge | JdF Ridge | 44.2170 | -129.6250 | 3460 | 1994 ROV U.S. Navy's Advanced Tethered Vehicle |
Banda Api | active, confirmed | arc volcano | Banda/Sunda Arc | -4.5250 | 129.8710 | 3 | 1993 SCUBA |
EPR, 11 42'N | active, confirmed | mid-ocean ridge | N EPR | 11.7000 | -103.8500 | 2580 | 1984 Angus camera (or 1985 Argo video) tow with temperature |
Taketomi Thermal Area | active, confirmed | arc volcano | Ryukyu Arc | 24.3483 | 124.1017 | 23 | 1987 or earlier, likely by SCUBA |
EPR, 9 40'N | active, confirmed | mid-ocean ridge | N EPR | 9.6500 | -104.2600 | 2572 | 1989 Argo I towed video; 1991 submersible Alvin |
13 N Ridge Site | active, confirmed | back-arc spreading center | Mariana Trough | 13.0987 | 143.6886 | 3036 | 2000 deep-tow camera (later, same year - ROV Kaiko) |
Minami-Ensei Knoll | active, confirmed | back-arc spreading center | Okinawa Trough | 28.3917 | 127.6417 | 740 | 1988 deep tow TV surveys followed by submersible Shinkai 2000; 1986 dredged Calyptogena shells |
EPR, 37 40'S Axial Dome | active, confirmed | mid-ocean ridge | Pacific-Antarctic Ridge | -37.6667 | -110.8667 | 2240 | 1997 video survey L'Atalante (do not know if activity confirmed); 1995 TV survey did not confirm activity; 2001 towed video and TV-grab definitely confirmed |
Matupi Harbour, Rabaul caldera, New Britain Island | active, confirmed | arc volcano | Bismarck Arc | -4.2700 | 152.2000 | 30 | 1961 or earlier intertidal |
PACMANUS field | active, confirmed | back-arc spreading center | Manus Basin | -3.7250 | 151.6700 | 1800 | 1991 deep-tow camera and video; 1995 submersible Shinkai 6500 |
Galapagos Mounds | active, confirmed | mid-ocean ridge | Galapagos Rift | 1.4500 | -86.1665 | 2700 | 1977 submersible Alvin |
Precious Stone Mountain | active, confirmed | mid-ocean ridge | Galapagos Rift | 1.2200 | -101.4900 | 1700 | 2009 deep-tow video and TV grab |
Tahi Moana 1 | active, confirmed | back-arc spreading center | Lau Basin | -20.6900 | -176.1800 | 2256 | 2008 commercial ROV; 2004 plume only |
Kemp Caldera | active, confirmed | arc volcano | South Sandwich Arc | -59.7000 | -28.3166 | 1420 | 2010 ROV Isis; 2009 plume only |
Tafu | active, confirmed | back-arc spreading center | Lau Basin | -15.3833 | -174.2500 | 1400 | 2008 or 2009 commercial ROV; 2008 plume only; 2009 ROV Jason II |
Moytirra | active, confirmed | mid-ocean ridge | N MAR | 45.4833 | -27.8500 | 2900 | 2011 ROV Holland 1; 2008 plume only MAPRs, ROV Isis buoyant plume, but no visual confirmation |
Sakai | active, confirmed | back-arc spreading center | Okinawa Trough | 27.5481 | 126.9895 | 1600 | 1988 submersible Shinkai 2000; 1987 plume only |
Rehu-Marka | active, confirmed | mid-ocean ridge | S EPR | -17.4333 | -113.2000 | 2590 | 1993 submersible Nautile; 1984 submersible Cyana - Auzende et al. (1996) says that no active black smokers were discovered but Krasnov et al. (1997) says one black smoker observed |
Punta Banda | active, confirmed | other | Coastal Baja California | 31.7500 | -116.7500 | 30 | 1960's commercial abalone divers |
White Point, Palos Verde, California | active, confirmed | other | Coastal California | 33.7000 | -118.3167 | 10 | 1984 or earlier, likely by SCUBA |
EPR, 18 10'S | active, confirmed | mid-ocean ridge | S EPR | -18.1700 | -113.3440 | 2700 | 1993 submersible Nautile; 1983 temperature and light attenuation anomalies |
El Hierro, Tagoro | active, confirmed | intra-plate volcano | 27.6200 | -17.9900 | 350 | 2016 submersible JAGO, 2017 ROV Liropus 2000, 2011 water column sampling | |
Magic Mountain | active, confirmed | mid-ocean ridge | Explorer Ridge | 49.7500 | -130.2667 | 1850 | 1984 submersible Pisces IV |
Nibelungen | active, confirmed | mid-ocean ridge | S MAR | -8.3000 | -13.5200 | 2900 | 2006 AUV ABE followed by ROV Quest; 2004 plume only |
CLSC, A3 | active, confirmed | back-arc spreading center | Lau Basin | -18.6000 | -176.4500 | 2500 | 1990 submersible Mir |
Kolbeinsey Field | active, confirmed | mid-ocean ridge | Kolbeinsey Ridge | 67.0833 | -18.7167 | 110 | 1988 submersible GEO |
Ribeira Quente | active, confirmed | mid-ocean ridge | Terceira Rift | 37.7250 | -25.3160 | 10 | 1986 or earlier, likely from shore or by SCUBA |
Sea Cliff | active, confirmed | mid-ocean ridge | Gorda Ridge | 42.7550 | -126.7083 | 2800 | 1988 submersible Sea Cliff; 1985 plume only; 1986 dredge and camera tow did not confirm activity |
DESMOS Cauldron | active, confirmed | back-arc spreading center | Manus Basin | -3.6958 | 151.8717 | 2000 | 1990 deep-sea monitoring system (DESMOS) video and still cameras |
Tonga Arc, Volcano 19 | active, confirmed | arc volcano | Tonga Arc | -24.8000 | -177.0167 | 970 | 2005 with submersibles PISCES IV and PISCES V and ROV RCV-150; 2003 plume and dredge only |
North Knoll, Iheya Ridge | active, confirmed | back-arc spreading center | Okinawa Trough | 27.7908 | 126.8966 | 1100 | 1995 deep tow survey |
Semyenov-2 | active, confirmed | mid-ocean ridge | N MAR | 13.5137 | -44.9630 | 2440 | 2009 TV grab and photo-TV profiling; 2007 deposits only |
East Diamante volcano | active, confirmed | arc volcano | Mariana Arc | 15.9300 | 145.6700 | 457 | 2004 ROV ROPOS; 2003 plume only |
Animal Farm | active, confirmed | mid-ocean ridge | S EPR | -18.6080 | -113.4000 | 2675 | 1993 submersible Nautile |
Banua Wuhu submarine volcano | active, confirmed | arc volcano | Sangihe Arc | 3.1380 | 125.4910 | 10 | 1996 or earlier, likely by SCUBA |
Tangaroa volcano | active, confirmed | arc volcano | Kermadec Arc | -36.3250 | 178.0333 | 890 | 2012 likely towed video or TV grab; 1999 plume only |
EPR, 9 47'N | active, confirmed | mid-ocean ridge | N EPR | 9.7750 | -104.2802 | 2560 | 1989 Argo I towed video; 1991 submersible Alvin |
Minami-Hiyoshi submarine volcano | active, confirmed | arc volcano | Mariana Arc | 23.4970 | 141.9400 | 80 | 2005 ROV HyperDolphin |
EPR, 37 48'S Axial Dome | active, confirmed | mid-ocean ridge | Pacific-Antarctic Ridge | -37.8000 | -110.9167 | 2200 | 2001 towed video and TV-grab |
Maug Caldera | active, confirmed | arc volcano | Mariana Arc | 20.0200 | 145.2200 | 145 | 2003 SCUBA shallow vents; 2004 ROV ROPOS deeper vents; 2003 plume only deeper vents |
Perseverance | active, confirmed | back-arc spreading center | Mariana Trough | 15.4802 | 144.5077 | 3935 | 2016 ROV SuBastian; 2015 AUV Sentry plume mapping |
Palinuro | active, confirmed | arc volcano | Aeolian Arc, Tyrrhenian Sea | 39.5500 | 14.7000 | 1000 | 2006 ROV Cherokee; 1968 manganese crust only; 1984 deposits only; 1993 TV profile did not confirm |
Solwara 13 | active, confirmed | back-arc spreading center | Manus Basin | -3.7320 | 151.7465 | 2000 | 2009 commercial ROV Fugro FV300; 1993 plume only |
Pescadero Basin, Auka | active, confirmed | mid-ocean ridge | Gulf of California | 23.9567 | -108.8618 | 3685 | 2015 ROV Doc Ricketts; 1990 or earlier plume only |
Nagahama Bay, Iwo-dake Volcano | active, confirmed | arc volcano | Ryukyu Arc | 30.7500 | 130.3330 | 26 | 1994 or earlier intertidal; 2008 or earlier SCUBA subtidal |
Esmeralda Bank | active, confirmed | arc volcano | Mariana Arc | 14.9667 | 145.2500 | 323 | 1990 towed video and TV-grab; 1978 hydrothermal deposits only |
Zouyu ridge | active, confirmed | mid-ocean ridge | S MAR | -13.2800 | -14.4100 | 2315 | 2009 towed video |
Mussel Valley | active, confirmed | back-arc spreading center | North Fiji Basin | -18.8167 | 173.4833 | 2700 | 1989 submersible Nautile; 1987 plume; 1988 towed camera did not confirm activity |
Izena Cauldron | active, confirmed | back-arc spreading center | Okinawa Trough | 27.2667 | 127.0833 | 1610 | 1988 submersible Shinkai 2000 |
Healy volcano | active, confirmed | arc volcano | Kermadec Arc | -34.9840 | 178.9990 | 1370 | 2005 submersible Pisces V; 1999 plume only |
Punta Mita, Bahia de Banderas | active, confirmed | other | Coastal Mexico | 20.7700 | -105.5200 | 10 | 1997 photo/video most likely by SCUBA |
EPR, 18 15'S | active, confirmed | mid-ocean ridge | S EPR | -18.2500 | -113.3500 | 2680 | 1993 submersible Nautile |
Nifonea Ridge | active, confirmed | back-arc spreading center | New Hebrides back-arc | -18.1330 | 169.5170 | 1900 | 2001 towed video; 2013 ROV Kiel 6000 black smokers |
Seamount X | active, confirmed | arc volcano | Mariana Arc | 13.2500 | 144.0200 | 1450 | 1994 or earlier submersible Shinkai 6500 |
Kawio Barat | active, confirmed | arc volcano | Sangihe Arc | 4.8133 | 125.0816 | 1890 | 2003 towed video, CTD/transmissometer, and dredge |
Ashadze-2 | active, confirmed | mid-ocean ridge | N MAR | 12.9917 | -44.9067 | 3300 | 2007 ROV Victor 6000; 2005 TV profiling, plume, and dredge did not confirm activity |
EPR, 1.4 S, off-axis | active, confirmed | mid-ocean ridge | S EPR | -1.3690 | -102.4560 | 3000 | 2008 towed video |
Ashadze-1 | active, confirmed | mid-ocean ridge | N MAR | 12.9733 | -44.8633 | 4200 | 2003 TV profiling; 2007 ROV Victor 6000 |
Loihi Seamount | active, confirmed | intra-plate volcano | Central Pacific | 18.9500 | -155.2500 | 4800 | 1985 bottom photography R/V Hakuho Maru; 1987 submersible Alvin |
EPR, 13 N | active, confirmed | mid-ocean ridge | N EPR | 12.8333 | -103.9500 | 2630 | 1982 submersible Cyana; 1981 towed camera, dredging, and plume did not confirm activity |
Teahitia seamount | active, confirmed | intra-plate volcano | Central Pacific | -17.5670 | -148.8167 | 1460 | 1983 submersible Cyana |
EPR, 9 50'N | active, confirmed | mid-ocean ridge | N EPR | 9.8300 | -104.2900 | 2520 | 1989 Argo I towed video |
Pulau Weh | active, confirmed | arc volcano | Banda/Sunda Arc | 5.8166 | 95.3000 | 8 | 1982 or earlier, likely by SCUBA |
Tiancheng | active, confirmed | mid-ocean ridge | SWIR | -27.9670 | 63.5500 | 3600 | 2014 HOV Jiaolong; 1997 plume only; 2009 DY115-20 Leg 7 plume and deposits; |
Misiteli | active, confirmed | back-arc spreading center | Lau Basin | -22.4700 | -176.7030 | 2050 | 2008 commercial ROV; 2003 plume only |
Medusa | active, confirmed | mid-ocean ridge | N EPR | 9.1404 | -104.2065 | 2580 | 2007 ROV Jason II; 1991 plume only |
Dorado Outcrop | active, confirmed | other | 9.0800 | -87.0950 | 3000 | 2013 ROV Jason Dive J2-751 | |
Panarea | active, confirmed | arc volcano | Aeolian Arc, Tyrrhenian Sea | 38.6583 | 15.1000 | 200 | 1800's shallow vents; 1995 deeper vents ROV Comex |
EPR, 18 26'S | active, confirmed | mid-ocean ridge | S EPR | -18.4333 | -113.3833 | 2650 | 1993 submersible Nautile; 1983 seafloor photos, temperature anomalies, and deposits did not confirm activity; 1984 submersible Cyana observed only inactive sites; 1985/86 or 1989 TV grab (need to check references to confirm activity) |
Main Endeavour Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9487 | -129.0981 | 2220 | 1984 submersible Alvin; 1982 dredge only |
Natsushima 84-1 Knoll | active, confirmed | back-arc spreading center | Okinawa Trough | 27.5750 | 127.1417 | 1600 | 1986 submersible Shinkai 2000 |
ESR, E2 | active, confirmed | back-arc spreading center | East Scotia Ridge | -56.0917 | -30.3250 | 2641 | 2009 towed video; 1999 plume only; 2010 ROV Isis |
Myojin Knoll | active, confirmed | arc volcano | Izu-Bonin Arc | 32.1033 | 139.8683 | 1360 | 1996 submersible Shinkai 2000 |
EPR, 10 02'N | active, confirmed | mid-ocean ridge | N EPR | 10.0330 | -104.3300 | 2560 | 1992 submersible Alvin |
Jaco Scar | active, confirmed | arc volcano | Costa Rica fore arc | 9.1175 | -84.8397 | 1790 | 2009 submersible Alvin |
Suiyo Seamount | active, confirmed | arc volcano | Izu-Bonin Arc | 28.5750 | 140.6417 | 1380 | 1991 submersible Shinkai 2000 |
EPR, 21 N | active, confirmed | mid-ocean ridge | N EPR | 20.8333 | -109.0833 | 2600 | 1979 submersible Alvin; 1978 submersible Cyana discovered mineral deposits only |
SPOT, Hatoma Knoll | active, confirmed | back-arc spreading center | Okinawa Trough | 24.8550 | 123.8410 | 1520 | 1999 submersible Shinkai 2000 |
Northwest Eifuku | active, confirmed | arc volcano | Mariana Arc | 21.4850 | 144.0430 | 1604 | 2004 ROV ROPOS; 2003 plume only |
Sangeang Island | active, confirmed | arc volcano | Banda/Sunda Arc | -8.1300 | 119.0900 | 2 | 1991 or earlier, from beach |
Nikko volcano | active, confirmed | arc volcano | Mariana Arc | 23.0833 | 142.3333 | 600 | 1992 submersible Shinkai 6500; 1979 first observed discolored water above the seamount |
Dodo Field | active, confirmed | mid-ocean ridge | CIR | -18.3470 | 65.3050 | 2730 | 2009 submersible Shinkai 6500; 2006 plume only |
Troll Wall | active, confirmed | mid-ocean ridge | Mohns Ridge | 71.2833 | -5.7667 | 550 | 2005 ROV BIODEEP-05 cruise |
Solwara 17 | active, confirmed | back-arc spreading center | Manus Basin | -3.0380 | 147.5280 | 535 | 2009 commercial ROV Fugro FV300; 2008 plumes with some sites subsequently observed with ROV |
Lilliput | active, confirmed | mid-ocean ridge | S MAR | -9.5500 | -13.1800 | 1500 | 2005 ROV Quest |
EPR, 17 12'S | active, confirmed | mid-ocean ridge | S EPR | -17.2000 | -113.1500 | 2590 | 1993 submersible Nautile |
Loki's Castle | active, confirmed | mid-ocean ridge | Mohns Ridge | 73.5500 | 8.1500 | 2400 | 2008 ROV Bathysaurus |
EPR, 13 N, Marginal High | active, confirmed | mid-ocean ridge | N EPR | 12.7090 | -103.9160 | 2650 | 1984 submersible Cyana; 1981 towed camera, dredging, and plume did not confirm activity |
TELVE | active, confirmed | back-arc spreading center | Lau Basin | -22.1667 | -176.6040 | 1760 | 2008 commercial ROV; 2003 plume only |
Vienna Woods | active, confirmed | back-arc spreading center | Manus Basin | -3.1667 | 150.2833 | 2500 | 1990 TV-grab (also same year, sampled by submersible Mir); 1985 (or 1986) camera tow vent fauna and inactive chimneys |
Ischia Island, Gulf of Naples | active, confirmed | other | Coastal Italy | 40.7306 | 13.9500 | 10 | 1954 or earlier, from the beach |
Mokuyo Seamount | active, confirmed | arc volcano | Izu-Bonin Arc | 28.3200 | 140.5800 | 1200 | 1990 submersible Shinkai 2000 |
EPR, 7 25'S | active, confirmed | mid-ocean ridge | S EPR | -7.4167 | -107.8000 | 2750 | 1985/86 or 1989 TV grab (need to check references to confirm activity); 1998 submersible Alvin |
Bahia Concepcion | active, confirmed | other | Coastal Baja California | 26.6667 | -111.8333 | 15 | 1968 or earlier, likely by SCUBA |
Luso | active, confirmed | mid-ocean ridge | N MAR | 38.9833 | -29.8833 | 570 | 2018 ROV Luso |
SPOT, Yonaguni Knoll IV | active, confirmed | back-arc spreading center | Okinawa Trough | 24.8490 | 122.7000 | 1385 | 2000 submersibles Shinkai 2000 and Shinkai 6500 |
EPR, 18 32'S | active, confirmed | mid-ocean ridge | S EPR | -18.5550 | -113.4160 | 2647 | 1993 submersible Nautile |
Alarcon Rise, Ja Sit | active, confirmed | mid-ocean ridge | Gulf of California | 23.3765 | -108.5315 | 2304 | 2012 ROV Doc Ricketts |
Maka | active, confirmed | back-arc spreading center | Lau Basin | -15.4217 | -174.2850 | 1660 | 2008 commercial ROV; 2004 plume only; 2006 plume and chimney samples |
Eyjafjördur | active, confirmed | mid-ocean ridge | Kolbeinsey Ridge | 65.8500 | -18.1333 | 65 | 1997, likely by SCUBA |
Yoron Hole | active, confirmed | back-arc spreading center | Okinawa Trough | 27.4916 | 127.5333 | 590 | 2010 ROV Hyperdolphin |
Chamorro volcano | active, confirmed | arc volcano | Mariana Arc | 20.8100 | 144.7050 | 896 | 2016 ROV Deep Discoverer; 2003 plume only |
Central Cleft, off-axis | active, confirmed | mid-ocean ridge | JdF Ridge | 44.7583 | -130.2750 | 2200 | 2000 ROV Tiburon |
Kagamil Island | active, confirmed | arc volcano | Aleutian Arc, western | 52.9800 | -169.7200 | 5 | 2007 SCUBA |
High-Rise Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9666 | -129.0894 | 2200 | 1988 submersible Alvin |
Aegir | active, confirmed | mid-ocean ridge | Mohns Ridge | 72.3440 | 1.5550 | 2600 | 2015 ROV Ægir 6000; 2013 plume only; 2015 AUV |
Lembeh Strait | active, confirmed | arc volcano | Sangihe Arc | 1.8000 | 125.2000 | 3 | NotProvided |
Wright volcanic center | active, confirmed | arc volcano | Kermadec Arc | -31.8500 | -179.1880 | 1165 | 2005 submersible PISCES V; 2004 plume NZAPLUME III cruise |
Northwest Rota-1 volcano | active, confirmed | arc volcano | Mariana Arc | 14.6010 | 144.7750 | 599 | 2004 ROV ROPOS; 2003 plume only |
Kos | active, confirmed | arc volcano | Hellenic Arc, Aegean Sea | 36.8500 | 27.2500 | 10 | 1983 or earlier, likely by SCUBA |
Don Joao de Castro Bank | active, confirmed | mid-ocean ridge | Terceira Rift | 38.2300 | -26.6300 | 45 | 1995 SCUBA |
Saguaro Field | active, confirmed | mid-ocean ridge | S EPR | -31.8500 | -112.0333 | 2330 | 1999 submersible Alvin; 1998 plume only |
Tu'i Malila | active, confirmed | back-arc spreading center | Lau Basin | -21.9876 | -176.5678 | 1870 | 2005 ROV Jason II; 2004 plume only |
Menez Gwen | active, confirmed | mid-ocean ridge | N MAR | 37.8417 | -31.5250 | 865 | 1994 submersible Nautile |
Mariana Mounds | active, confirmed | back-arc spreading center | Mariana Trough | 18.0333 | 144.2833 | 3600 | 1987 submersible Alvin |
West Mata submarine volcano | active, confirmed | arc volcano | Tonga Arc | -15.0950 | -173.7500 | 1208 | 2009 ROV Jason II; 2008 eruption plume detected |
EPR, 17 34'S | active, confirmed | mid-ocean ridge | S EPR | -17.5667 | -113.2333 | 2600 | 1994 submersible Shinkai 6500; 1996 Argo II towed video |
Lost City | active, confirmed | mid-ocean ridge | N MAR | 30.1250 | -42.1183 | 800 | 2000 towed video ARGO-II and submersible Alvin |
Beebe | active, confirmed | mid-ocean ridge | Mid-Cayman Rise | 18.5466 | -81.7182 | 4957 | 2010 AUV Autosub6000 and HyBIS TVG; 2009 plume only |
Temakons | active, confirmed | back-arc spreading center | New Hebrides back-arc | -17.5667 | 169.1000 | 1400 | 1994 towed camera with temperature |
Vienna Woods, Hydrothermal Field 4 | active, confirmed | back-arc spreading center | Manus Basin | -3.3712 | 150.0360 | 2240 | 1990 TV-grab |
Akuseki-jima | active, confirmed | arc volcano | Ryukyu Arc | 29.4610 | 129.5970 | 5 | 1993 or earlier, likely by SCUBA |
Yokosuka | active, confirmed | back-arc spreading center | Okinawa Trough | 25.2638 | 124.3733 | 2190 | 2016 ROV Kaiko; 2014 plume only |
EPR, 23 30'S | active, confirmed | mid-ocean ridge | S EPR | -23.5333 | -115.5667 | 2600 | 1987 or earlier [need to check Marchig & Gundlach (1987)]; 2005 submersible Alvin |
EPR, 2 S | active, confirmed | mid-ocean ridge | S EPR | -2.2200 | -102.6550 | 2900 | 2008 towed video and AUV ABE |
Alarcon Rise, Meyibo | active, confirmed | mid-ocean ridge | Gulf of California | 23.3553 | -108.5443 | 2295 | 2012 ROV Doc Ricketts |
Feather Duster | active, confirmed | mid-ocean ridge | N EPR | 10.9267 | -103.6767 | 2520 | 1984 towed camera and submersible Alvin |
Manuk Island | active, confirmed | arc volcano | Banda/Sunda Arc | -5.5300 | 130.2920 | 2 | |
Navidad | active, confirmed | mid-ocean ridge | Galapagos Rift | 2.5300 | -94.0750 | 2380 | 2005 towed video Medea |
Champagne Hot Springs | active, confirmed | arc volcano | Lesser Antilles Arc | 15.2500 | -61.3830 | 5 | 2001 or earlier (assume SCUBA) |
ESR, E9 | active, confirmed | back-arc spreading center | East Scotia Ridge | -60.0500 | -29.9300 | 2402 | 2009 towed video; 1999 plume only; 2010 ROV Isis |
Kagoshima Bay | active, confirmed | arc volcano | Ryukyu Arc | 31.6583 | 130.8000 | 200 | 1993 towed TV system (Haorimushi site); 2007 ROV Hyper-dolphin (Tagiri site) |
Rose Garden | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.8058 | -86.2267 | 2550 | 1977 submersible Alvin; 1976 plume and photographs of clam shells did not confirm activity (note: Rose Garden is used here as the name of the vent field, but Rose Garden vent site itself not discovered until 1979) |
Sumisu Caldera | active, confirmed | arc volcano | Izu-Bonin Arc | 31.4667 | 140.0667 | 690 | 1998 submersible Shinkai 2000 |
Irabu Knoll | active, confirmed | back-arc spreading center | Okinawa Trough | 25.2300 | 124.8800 | 1850 | 2000 submersible Shinkai 6500; 1986 seafloor photos did not confirm activity |
Not Dead Yet | active, confirmed | mid-ocean ridge | JdF Ridge | 46.6899 | -129.3772 | 2419 | 2007 ROV Jason II; 1991 camera tow did not confirm activity |
Yali | active, confirmed | arc volcano | Hellenic Arc, Aegean Sea | 36.6600 | 27.1300 | 3 | 1991 or earlier, from beach |
ABE | active, confirmed | back-arc spreading center | Lau Basin | -20.7619 | -176.1910 | 2220 | 2004 AUV ABE; 2004 plume only on previous cruise |
Kick'em Jenny submarine volcano | active, confirmed | arc volcano | Lesser Antilles Arc | 12.2833 | -61.6667 | 265 | 2003 ROV Eastern Oceanics; 1989 submersible Johnson-Sea-Link II (did not confirm activity); 2001 plume only |
EPR, 10 44.6'N | active, confirmed | mid-ocean ridge | N EPR | 10.7433 | -103.6500 | 2580 | 1985 Argo video tow with temperature |
Saldanha | active, confirmed | mid-ocean ridge | N MAR | 36.5667 | -33.4333 | 2300 | 1998 submersible Nautile |
Tutum Bay, Ambitle Island | active, confirmed | arc volcano | Tabar-Feni Arc | -4.0833 | 153.5500 | 10 | 1996 or earlier, likely by SCUBA |
Menez Hom | active, confirmed | mid-ocean ridge | N MAR | 37.1500 | -32.4333 | 1802 | 2002 ROV Victor 6000 |