Below is the subset of Vent Fields that contain the taxonomy term (Activity, Tectonic Setting, Region, Ocean, National Jurisdiction, Temperature Category, or MGDS Feature ID) listed above.
You can sort the list below by clicking on a column header.
Vent Field Name ID | Activity |
Tectonic Setting![]() |
Region | Latitude | Longitude | Maximum or Single Reported Depth | Year and How Discovered |
---|---|---|---|---|---|---|---|
SWIR, D20 | active, inferred | mid-ocean ridge | SWIR | -53.0200 | 22.1880 | 4170 | 2000-2001 plume and dredge only |
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 |
GEISEIR site 30, segment O1 | active, inferred | mid-ocean ridge | SEIR | -46.6240 | 96.0594 | 2500 | 2009 plume only |
MAR, 28 S | active, inferred | mid-ocean ridge | S MAR | -27.7936 | -13.3730 | 3217 | 2013 plume only |
Don Joao de Castro Bank | active, confirmed | mid-ocean ridge | Terceira Rift | 38.2300 | -26.6300 | 45 | 1995 SCUBA |
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 |
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 |
Landing Stage | active, inferred | mid-ocean ridge | SWIR | -37.5000 | 51.0000 | 2300 | 2014 leg 2 or 3 of the 30th Chinese Cruise |
EPR, 30.1 S, Segment E1 | active, inferred | mid-ocean ridge | S EPR | -30.1330 | -111.7640 | 2480 | 1998 plume only |
W Eye of Mordor | inactive | mid-ocean ridge | Galapagos Rift | 1.9707 | -91.3900 | 1600 | 2005 towed video Medea observed inactive chimneys |
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 |
MAR, 23 35'N | inactive | mid-ocean ridge | N MAR | 23.5833 | -45.0000 | 3500 | 1980 submersible Alvin did not observe hydrothermal activity |
EPR, 15 24'S | active, inferred | mid-ocean ridge | S EPR | -15.4000 | -112.8350 | 2640 | 1993 plume only |
MAR, 8 10'S | active, inferred | mid-ocean ridge | S MAR | -8.1670 | -13.4670 | 2000 | 2001 plume only |
Wagner Basin | active, inferred | mid-ocean ridge | Gulf of California | 31.0666 | -114.0833 | 120 | 2007 echosounder and grab samples |
MAR, 12 48'N | inactive | mid-ocean ridge | N MAR | 12.8000 | -44.7883 | 2400 | NotProvided |
EPR, southern 16 N segment | active, inferred | mid-ocean ridge | N EPR | 15.5000 | -105.4000 | 2300 | 1997 plume only |
EPR, 14 N seamount | inactive | mid-ocean ridge | N EPR | 14.1500 | -104.3667 | 2600 | NotProvided |
SEIR-WXC06 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 138.5500 | 2400 | 2015 plume only |
ET | active, inferred | mid-ocean ridge | JdF Ridge | 48.1993 | -128.9257 | 2500 | NotProvided |
Chile Rise, Segment N9A | active, inferred | mid-ocean ridge | Chile Rise | -39.0500 | -91.5833 | 3450 | 1998 plume only |
EPR, 2 S, off-axis | active, inferred | mid-ocean ridge | S EPR | -2.0840 | -102.8270 | 3000 | 2008 plume only |
GEISEIR site 12, segment K4 | active, inferred | mid-ocean ridge | SEIR | -42.6600 | 83.0366 | 2600 | 2010 plume only |
EPR, Ridge 3, 20 40'S | active, confirmed | mid-ocean ridge | S EPR | -20.3333 | -113.6792 | 3050 | 1983 Deep Tow camera |
Stealth | active, confirmed | mid-ocean ridge | S EPR | -17.6167 | -113.2330 | 2600 | 1996 Argo II towed video; 1993 plume only; 1998 submersible Alvin |
Stockwork | active, inferred | mid-ocean ridge | JdF Ridge | 47.9000 | -129.1240 | 2300 | 2005 submersible Alvin (need publication to determine if confirmed) |
S AMAR 2 | active, inferred | mid-ocean ridge | N MAR | 35.9670 | -34.1830 | 2240 | 1992 plume only; 1994 plume only |
Carlsberg Ridge, CR2003 | active, inferred | mid-ocean ridge | Carlsberg Ridge | 6.0500 | 60.9500 | 3500 | 2003 plume only; 2007 plume only |
SWIR, 51.7 E | active, inferred | mid-ocean ridge | SWIR | -37.4660 | 51.7320 | 1595 | 2008 plume and dredge only |
EPR, 10 02'N | active, confirmed | mid-ocean ridge | N EPR | 10.0330 | -104.3300 | 2560 | 1992 submersible Alvin |
EPR, 10 44.6'N | active, confirmed | mid-ocean ridge | N EPR | 10.7433 | -103.6500 | 2580 | 1985 Argo video tow with temperature |
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 |
Split Seamount | active, inferred | mid-ocean ridge | JdF Ridge | 47.6400 | -128.9667 | 2350 | 1990 camera tow (need reference to check if activity confirmed) |
CIR, 8-17 S, Segment 6, 14.3 S | active, inferred | mid-ocean ridge | CIR | -14.3000 | 66.1000 | 3500 | 2010 plume only |
Squid Forest | inactive | mid-ocean ridge | Kolbeinsey Ridge | 68.0000 | -17.5000 | 900 | 1999 ROV Aglantha |
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 |
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 |
Galapagos Rift, 95.5 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.6700 | -95.4500 | 3200 | 1990 submersible Alvin did not confirm activity |
Alarcon Rise, Ja Sit | active, confirmed | mid-ocean ridge | Gulf of California | 23.3765 | -108.5315 | 2304 | 2012 ROV Doc Ricketts |
MAR, 24 20'N | inactive | mid-ocean ridge | N MAR | 24.3500 | -46.2000 | 3200 | NotProvided |
EPR, 16 08'S | active, inferred | mid-ocean ridge | S EPR | -16.1300 | -113.0000 | 2640 | 1993 plume only |
SWIR, D36 | active, inferred | mid-ocean ridge | SWIR | -52.7490 | 11.7110 | 3981 | 2000-2001 plume and dredge only |
AHA Field | active, confirmed | mid-ocean ridge | N EPR | 1.7333 | -102.2830 | 2850 | 2000 towed imaging ARGO-II |
GEISEIR site 31, segment O1 | active, inferred | mid-ocean ridge | SEIR | -46.8956 | 96.5709 | 2600 | 2009 plume only |
MAR, 27 S | active, inferred | mid-ocean ridge | S MAR | -27.1476 | -13.4753 | 3341 | 2013 plume only |
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 |
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/Tamayo intersection | active, inferred | mid-ocean ridge | N EPR | 22.9333 | -108.0667 | 3200 | 1979 submersible Alvin did not confirm activity |
Area JX | active, inferred | mid-ocean ridge | CIR | -22.9666 | 69.1833 | 3500 | 1986 plume only (camera tow did not confirm) |
EPR, 30.4 S, Segment E2 | active, inferred | mid-ocean ridge | S EPR | -30.3750 | -111.7640 | 2320 | 1998 plume only |
Galapagos Mounds | active, confirmed | mid-ocean ridge | Galapagos Rift | 1.4500 | -86.1665 | 2700 | 1977 submersible Alvin |
Nibelungen | active, confirmed | mid-ocean ridge | S MAR | -8.3000 | -13.5200 | 2900 | 2006 AUV ABE followed by ROV Quest; 2004 plume only |
Consag Basin | active, inferred | mid-ocean ridge | Gulf of California | 30.6333 | -113.9083 | 140 | 2007 echosounder and grab samples |
Markov Deep | active, inferred | mid-ocean ridge | N MAR | 5.9100 | -33.1800 | 3500 | 2001-2002 and 2003 dredge only |
EPR 87D1 Seamount | inactive | mid-ocean ridge | N EPR | 11.5333 | -103.8600 | 2090 | NotProvided |
Guaymas Basin, Northern Trough_2 | active, confirmed | mid-ocean ridge | Gulf of California | 27.4110 | -111.3879 | 1800 | 2015 ROV Hybis |
Sasquatch Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9969 | -129.0662 | 2200 | 2000 submersible Alvin |
Gakkel Ridge, Site 6 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.5333 | 43.0000 | 3000 | 2001 plume only |
GEISEIR site 13, segment L1 | active, inferred | mid-ocean ridge | SEIR | -41.0125 | 86.0608 | 2800 | 2010 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 |
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 |
Hess Deep | inactive | mid-ocean ridge | Galapagos Rift | 2.2500 | -101.5000 | 5100 | NotProvided |
AAR KR1, Mujin | active, inferred | mid-ocean ridge | SEIR | -62.1000 | 158.8000 | 2100 | 2011 plume and biological samples |
S Oceanographer | active, inferred | mid-ocean ridge | N MAR | 34.8670 | -36.4330 | 3460 | 1992 plume only |
Owen transform fault | inactive | mid-ocean ridge | Carlsberg Ridge | 9.8333 | 57.9500 | 4500 | NotProvided |
SWIR, 53.2 E | active, inferred | mid-ocean ridge | SWIR | -36.1010 | 53.2550 | 2218 | 2008 plume and dredge only |
Central Cleft, off-axis | active, confirmed | mid-ocean ridge | JdF Ridge | 44.7583 | -130.2750 | 2200 | 2000 ROV Tiburon |
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) |
GEISEIR site 20, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.9508 | 87.8008 | 2400 | 2010 plume only |
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 |
CIR, 8-17 S, Segment 7 | active, inferred | mid-ocean ridge | CIR | -17.0000 | 66.8000 | 3100 | 2010 plume only |
Soria Moria | active, confirmed | mid-ocean ridge | Mohns Ridge | 71.2593 | -5.8146 | 750 | 2005 ROV BIODEEP-05 cruise |
EPR, 26.5 S | active, confirmed | mid-ocean ridge | S EPR | -26.4833 | -112.6250 | 2064 | 1993 submersible Nautile (or earlier) |
South Cleft | active, confirmed | mid-ocean ridge | JdF Ridge | 44.6667 | -130.3667 | 2250 | 1981 deep-tow photographs; 1984 submersible Alvin |
Alarcon Rise, Meyibo | active, confirmed | mid-ocean ridge | Gulf of California | 23.3553 | -108.5443 | 2295 | 2012 ROV Doc Ricketts |
MAR, 24 30'N | inactive | mid-ocean ridge | N MAR | 24.5000 | -46.1533 | 3900 | 1987 deposits 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 |
SWIR, D50B | active, inferred | mid-ocean ridge | SWIR | -52.4200 | 12.7480 | 3913 | 2000-2001 plume and dredge only |
GEISEIR site 32, segment O2 | active, inferred | mid-ocean ridge | SEIR | -47.1196 | 96.8947 | 2600 | 2009 plume only |
MAR, 23 S | active, inferred | mid-ocean ridge | S MAR | -23.7428 | -13.3936 | 2880 | 2013 plume only |
Boomerang Seamount | active, inferred | mid-ocean ridge | SEIR | -37.7217 | 77.8250 | 850 | 1996 plume and wax core only |
Evan | active, confirmed | mid-ocean ridge | N MAR | 37.2667 | -32.2833 | 1775 | 2006 submersible Nautile |
Ashadze-4 | inactive | mid-ocean ridge | N MAR | 12.9700 | -44.8500 | 4530 | 2007 ROV VICTOR 6000 did not find hydrothermal activity |
Green Seamount | inactive | mid-ocean ridge | N EPR | 20.8033 | -109.2833 | 2000 | 1982 submersible Alvin observed only inactive |
Pobeda-1 | active, inferred | mid-ocean ridge | N MAR | 17.1500 | -46.4200 | 3100 | 2014/2015 video profiling, TVgrab and corer |
EPR, 30.8 S, Segment E2 | active, inferred | mid-ocean ridge | S EPR | -30.7500 | -111.8770 | 2360 | 1998 plume only |
Galapagos Rift, 85 50'W | inactive | mid-ocean ridge | Galapagos Rift | 0.7500 | -85.8333 | 2600 | 1988 or earlier submersible observations |
EPR, 17 47'S | active, inferred | mid-ocean ridge | S EPR | -17.7900 | -113.3000 | 2600 | 1993 plume only |
Kebrit Deep | active, inferred | mid-ocean ridge | Red Sea | 24.7233 | 36.2767 | 1590 | 1972 deposits only |
Jade Emperor Mountain | inactive | mid-ocean ridge | SWIR | -37.9400 | 49.2600 | 1500 | 2010 video sled, plume survey, and geological sampling all suggest inactive |
Romanche Fracture Zone | inactive | mid-ocean ridge | S MAR | -0.9767 | -24.5133 | 3100 | NotProvided |
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) |
Luso | active, confirmed | mid-ocean ridge | N MAR | 38.9833 | -29.8833 | 570 | 2018 ROV Luso |
Salty Dawg Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9822 | -129.0756 | 2200 | 1995 submersible Alvin, followed by ROV ROPOS |
Gakkel Ridge, Site 7 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.9833 | 55.5000 | 3800 | 2001 plume only |
GEISEIR site 14, segment L1 | active, inferred | mid-ocean ridge | SEIR | -41.0716 | 86.1550 | 2700 | 2010 plume only |
EPR, 21 25'S | active, confirmed | mid-ocean ridge | S EPR | -21.4333 | -114.2917 | 2850 | 1984 submersible Cyana; 1983 deposits 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 |
Galapagos Rift, 94.4 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.5300 | -94.3300 | 2400 | 2005 plume only |
AAR KR2 | active, inferred | mid-ocean ridge | SEIR | -60.0000 | 152.5000 | 3200 | 2011 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 |
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) |
Carlsberg Ridge, 1.67 S | inactive | mid-ocean ridge | Carlsberg Ridge | -1.6768 | 67.7700 | 4500 | NotProvided |
SWIR, Plume 1, Segment 17 | active, inferred | mid-ocean ridge | SWIR | -31.1830 | 58.5000 | 3600 | 1997 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 |
EPR, 9 33'N | active, confirmed | mid-ocean ridge | N EPR | 9.5583 | -104.2500 | 2574 | 1989 Argo I towed video; 1991 submersible Alvin |
GEISEIR site 21, segment L3 | active, inferred | mid-ocean ridge | SEIR | -42.0050 | 87.8808 | 2400 | 2010 plume only |
Flow | active, confirmed | mid-ocean ridge | JdF Ridge | 46.5250 | -129.5783 | 2390 | 1993 ROV ROPOS |
Tempus Fugit | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.7683 | -85.9100 | 2560 | 2011 ROV Little Hercules |
Troll Wall | active, confirmed | mid-ocean ridge | Mohns Ridge | 71.2833 | -5.7667 | 550 | 2005 ROV BIODEEP-05 cruise |
MAR, 15 50'N | inactive | mid-ocean ridge | N MAR | 15.8667 | -46.6667 | 3000 | NotProvided |
EPR, 27.7 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -27.7000 | -112.9170 | 2105 | 1998 plume only |
EPR, 31.4 S, Segment E4 | active, inferred | mid-ocean ridge | S EPR | -31.4330 | -111.9670 | 2350 | 1998 plume only |
Calyfield | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.8300 | -89.6083 | 1660 | 2002 submersible Alvin |
Alarcon Rise, Tzab-ek | active, confirmed | mid-ocean ridge | Gulf of California | 23.3526 | -108.5597 | 2249 | 2015 ROV Doc Ricketts |
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 |
EPR, 16 24'S | active, inferred | mid-ocean ridge | S EPR | -16.4000 | -113.0500 | 2640 | 1993 plume only |
SWIR, D54 | active, inferred | mid-ocean ridge | SWIR | -52.4370 | 13.3120 | 4029 | 2000-2001 plume and dredge only |
GEISEIR site 33, segment O2 | active, inferred | mid-ocean ridge | SEIR | -47.2383 | 97.1566 | 2700 | 2009 plume only |
MAR, 19 S | active, inferred | mid-ocean ridge | S MAR | -19.3301 | -11.9421 | 2707 | 2013 plume only |
GEISEIR site 1, segment J2 | active, inferred | mid-ocean ridge | SEIR | -39.4400 | 78.0920 | 2270 | 1996 plume only |
Lucky Strike | active, confirmed | mid-ocean ridge | N MAR | 37.2933 | -32.2733 | 1740 | 1993 submersible Alvin; 1992 dredge and plume only |
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] |
Red Seamount | active, confirmed | mid-ocean ridge | N EPR | 20.8033 | -109.3783 | 2000 | 1982 submersible Alvin |
SEIR-WXC25 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 131.9000 | 3050 | 2015 plume only |
Knipovich Ridge, 75 N | active, inferred | mid-ocean ridge | Knipovich Ridge | 74.8000 | 8.4417 | 3185 | 2000 plume only |
EPR, Ridge 1, 20 40'S | active, confirmed | mid-ocean ridge | S EPR | -20.8333 | -114.1667 | 3000 | 1983 Deep Tow camera |
EPR, 17 53'S | active, inferred | mid-ocean ridge | S EPR | -17.8800 | -113.3000 | 2610 | 1993 plume only |
Menez Hom | active, confirmed | mid-ocean ridge | N MAR | 37.1500 | -32.4333 | 1802 | 2002 ROV Victor 6000 |
Shaban Deep | active, inferred | mid-ocean ridge | Red Sea | 26.2250 | 35.3500 | 1540 | 1983 deposits only |
Kairei Field | active, confirmed | mid-ocean ridge | CIR | -25.3195 | 70.0400 | 2460 | 2000 ROV Kaiko; 1993 plume only |
near Jade Emperor Mountain, on-axis | active, inferred | mid-ocean ridge | SWIR | -37.8666 | 49.2166 | 3000 | 2010 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 |
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 |
MAR, 17 S | active, inferred | mid-ocean ridge | S MAR | -17.2522 | -14.2270 | 3280 | 2013 plume only |
Middle Valley, Dead Dog Vent Field | active, confirmed | mid-ocean ridge | JdF Ridge | 48.4560 | -128.7088 | 2450 | 1990 HOV Alvin |
Gakkel Ridge, Site 8 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.5333 | 69.0000 | 3500 | 2001 plume only |
Gorda Ridge, 41 30'N | inactive | mid-ocean ridge | Gorda Ridge | 41.5167 | -127.4500 | 3350 | 1984 deposits only |
Galapagos Rift, 94.7 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.6000 | -94.7750 | 2690 | 2005 plume only |
MAR, 4 02'S | active, inferred | mid-ocean ridge | S MAR | -4.0333 | -12.2500 | 4000 | 2005 plume only |
S-OH2 | active, inferred | mid-ocean ridge | N MAR | 34.0670 | -37.4830 | 3250 | 2000 or earlier plume only |
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 |
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 |
SWIR, Plume 2, Segment 16 | active, inferred | mid-ocean ridge | SWIR | -31.0670 | 58.9670 | 4200 | 1997 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, 9 40'N | active, confirmed | mid-ocean ridge | N EPR | 9.6500 | -104.2600 | 2572 | 1989 Argo I towed video; 1991 submersible Alvin |
GEISEIR site 23, segment M2 | active, inferred | mid-ocean ridge | SEIR | -42.0272 | 89.2205 | 2400 | 2009 plume only |
Brown Bear Seamount | inactive | mid-ocean ridge | JdF Ridge | 46.0333 | -130.5500 | 1500 | NotProvided |
Pegasus | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.7500 | -88.2000 | 2000 | 2011 ROV Little Hercules |
Eyjafjördur | active, confirmed | mid-ocean ridge | Kolbeinsey Ridge | 65.8500 | -18.1333 | 65 | 1997, likely by SCUBA |
MAR, 16 46'N | inactive | mid-ocean ridge | N MAR | 16.7950 | -46.3800 | 3300 | NotProvided |
EPR, 27.9 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -27.8670 | -112.9120 | 2180 | 1998 plume only |
SEIR-WXC22 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 132.1000 | 2950 | 2015 plume only |
Nolan's Nook | active, confirmed | mid-ocean ridge | S EPR | -31.1500 | -111.9167 | 2330 | 1999 submersible Alvin; 1998 plume 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 |
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 |
EPR, 18 15'S | active, confirmed | mid-ocean ridge | S EPR | -18.2500 | -113.3500 | 2680 | 1993 submersible Nautile |
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 |
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 |
SWIR, D9B | active, inferred | mid-ocean ridge | SWIR | -52.7070 | 18.8170 | 3931 | 2000-2001 plume and dredge only |
GEISEIR site 34, segment O3 | active, inferred | mid-ocean ridge | SEIR | -47.4145 | 97.4373 | 2700 | 2009 plume only |
Deyin-1 | active, confirmed | mid-ocean ridge | S MAR | -15.1666 | -13.3558 | 2850 | 2012 TV-grab; 2011 deposits only; 2013 plume only |
GEISEIR site 3, segment J4 | active, inferred | mid-ocean ridge | SEIR | -41.7720 | 79.7530 | 2800 | 1996 plume only |
Lucky Strike segment, southern end | active, inferred | mid-ocean ridge | N MAR | 37.0500 | -32.4200 | 2600 | 1994 plume only |
Semyenov-2 | active, confirmed | mid-ocean ridge | N MAR | 13.5137 | -44.9630 | 2440 | 2009 TV grab and photo-TV profiling; 2007 deposits only |
EPR, Manzanillo Spreading Segment | active, inferred | mid-ocean ridge | N EPR | 18.2500 | -106.3000 | 2600 | 1997 plume only |
Gakkel Ridge, 7.5 E | active, inferred | mid-ocean ridge | Gakkel Ridge | 85.0167 | 7.4500 | 3600 | 2001 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 |
EPR, 21 40'S | active, inferred | mid-ocean ridge | S EPR | -21.6340 | -114.3010 | 2730 | 1987-1988 deposits only |
EPR, 17 56'S | active, inferred | mid-ocean ridge | S EPR | -17.9400 | -113.3170 | 2620 | 1993 plume only |
AMAR | active, inferred | mid-ocean ridge | N MAR | 36.3833 | -33.6500 | 2600 | 1992 plume only; 1994 plume only |
Nereus Deep | active, inferred | mid-ocean ridge | Red Sea | 23.1670 | 37.2830 | 2400 | 1972 deposits only |
MESO Zone | inactive | mid-ocean ridge | CIR | -23.3927 | 69.2422 | 2850 | 1993 TV grab and water column measurements |
Zouyu ridge | active, confirmed | mid-ocean ridge | S MAR | -13.2800 | -14.4100 | 2315 | 2009 towed video |
Beebe | active, confirmed | mid-ocean ridge | Mid-Cayman Rise | 18.5466 | -81.7182 | 4957 | 2010 AUV Autosub6000 and HyBIS TVG; 2009 plume only |
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) |
MAR, 25 S | active, inferred | mid-ocean ridge | S MAR | -25.3350 | -13.6305 | 2570 | 2013 plume only |
Middle Valley, Bent Hill Massive Sulfide | active, confirmed | mid-ocean ridge | JdF Ridge | 48.4341 | -128.6812 | 2440 | 1990 HOV Alvin, 1985 deposits 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) |
Puy des Folles | active, inferred | mid-ocean ridge | N MAR | 20.5083 | -45.6417 | 2000 | 1996 submersible Nautile observed only inactive vents |
EPR, 28 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -28.0170 | -112.9040 | 2130 | 1998 plume only |
Gorda Ridge, EP96B | active, inferred | mid-ocean ridge | Gorda Ridge | 42.5500 | -126.8333 | 3400 | 1984 deposits only; 1996 plume only |
Galapagos Rift, 95 W | inactive | mid-ocean ridge | Galapagos Rift | 2.5000 | -95.1667 | 2600 | NotProvided |
Carlsberg Ridge, 63 40'E | active, inferred | mid-ocean ridge | Carlsberg Ridge | 3.7000 | 63.6666 | 3500 | 2007 plume only |
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 |
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 |
Solitaire Field | active, confirmed | mid-ocean ridge | CIR | -19.5450 | 65.8500 | 2630 | 2009 submersible Shinkai 6500; 2006 plume only |
SWIR, unnamed, Segment 26 | active, inferred | mid-ocean ridge | SWIR | -37.6080 | 50.8527 | 2800 | 2008 dredge only DY115-20 Leg 6 |
EPR, 9 47'N | active, confirmed | mid-ocean ridge | N EPR | 9.7750 | -104.2802 | 2560 | 1989 Argo I towed video; 1991 submersible Alvin |
GEISEIR site 24, segment M3 | active, inferred | mid-ocean ridge | SEIR | -43.0369 | 91.0357 | 2400 | 2009 plume 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 |
Uka Pacha | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.7700 | -88.3000 | 2100 | 2011 ROV Little Hercules |
EPR, mid 17 N segment | active, inferred | mid-ocean ridge | N EPR | 17.0000 | -105.3800 | 2750 | 1997 plume only |
SEIR-WXC17 | active, inferred | mid-ocean ridge | SEIR | -50.3000 | 133.8000 | 2780 | 2015 plume only |
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 |
W Los Huellos Caldera | active, inferred | mid-ocean ridge | Galapagos Rift | 1.0000 | -90.6000 | 1600 | 2005 plume only |
Ringvent | active, confirmed | mid-ocean ridge | Gulf of California | 27.5083 | -111.6792 | 1740 | 2016 submersible Alvin; 2009 towed camera/CTD/bottles |
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 |
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) |
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) |
SEIR | inactive | mid-ocean ridge | SEIR | -28.0614 | 74.1733 | 5000 | NotProvided |
GEISEIR site 35, segment O3 | active, inferred | mid-ocean ridge | SEIR | -47.6179 | 97.8678 | 2600 | 2009 plume only |
MAR, segment south of St. Paul system | active, inferred | mid-ocean ridge | N MAR | 0.5000 | -25.0000 | 3500 | 2013 plume only |
GEISEIR site 5, segment K1 | active, inferred | mid-ocean ridge | SEIR | -41.2420 | 81.1580 | 2860 | 1996 plume only; 2007 plume only |
Menez Gwen | active, confirmed | mid-ocean ridge | N MAR | 37.8417 | -31.5250 | 865 | 1994 submersible Nautile |
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 |
MAR, 30.8 S | active, inferred | mid-ocean ridge | S MAR | -30.8327 | -13.4690 | 2950 | 2013 plume only |
Baby Bare Seamount | active, confirmed | mid-ocean ridge | JdF Ridge | 47.7100 | -127.7870 | 2600 | 1995 submersible Alvin |
Gakkel Ridge, Site 2 | active, inferred | mid-ocean ridge | Gakkel Ridge | 83.8500 | -2.0000 | 3900 | 2001 plume only |
CIR, 8-17 S, Segment 2 | active, inferred | mid-ocean ridge | CIR | -9.9000 | 66.7500 | 4000 | 2010 plume only |
Knipovich Ridge, 77 40'N | active, inferred | mid-ocean ridge | Knipovich Ridge | 77.6300 | 7.5800 | 3000 | 2000 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] |
North FAMOUS | active, inferred | mid-ocean ridge | N MAR | 36.9670 | -32.9670 | 2500 | 1994 plume only |
Aden | active, confirmed | mid-ocean ridge | Aden Ridge | 11.9500 | 43.6667 | 1600 | 1984 submersible Cyana |
Edmond Field | active, confirmed | mid-ocean ridge | CIR | -23.8780 | 69.5960 | 3320 | 2001 ROV Jason |
TaiJi | active, inferred | mid-ocean ridge | S MAR | -13.5900 | -14.5200 | 3180 | 2011 plume only |
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 |
Mohns Ridge, 72 N | active, inferred | mid-ocean ridge | Mohns Ridge | 72.0390 | -0.2520 | 2500 | 1987 plume only; 2013 plume only |
Grimsey Field | active, confirmed | mid-ocean ridge | Kolbeinsey Ridge | 66.6067 | -17.6542 | 400 | 1997 submersible Jago |
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 |
EPR, 28.3 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -28.3000 | -112.9830 | 2220 | 1998 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 |
Navidad | active, confirmed | mid-ocean ridge | Galapagos Rift | 2.5300 | -94.0750 | 2380 | 2005 towed video Medea |
Carlsberg Ridge, 63 50'E | active, inferred | mid-ocean ridge | Carlsberg Ridge | 3.6916 | 63.8333 | 3500 | 2009 plume only; 2012 plume and deposits |
MAR, 25 50'N | inactive | mid-ocean ridge | N MAR | 25.8083 | -44.9833 | 3000 | NotProvided |
EPR, 7 S | active, inferred | mid-ocean ridge | S EPR | -7.0000 | -107.5500 | 2600 | 1985/86 or 1989 TV grab |
Area EX/FX | active, inferred | mid-ocean ridge | CIR | -21.4000 | 68.7666 | 3300 | 1986 plume and sediments |
SWIR, D57 | active, inferred | mid-ocean ridge | SWIR | -52.2240 | 13.7380 | 3517 | 2000-2001 plume and dredge only |
EPR, 9 50'N | active, confirmed | mid-ocean ridge | N EPR | 9.8300 | -104.2900 | 2520 | 1989 Argo I towed video |
GEISEIR site 25, segment M4 | active, inferred | mid-ocean ridge | SEIR | -43.3115 | 92.1335 | 2700 | 2009 plume only |
Axial Seamount, ASHES | active, confirmed | mid-ocean ridge | JdF Ridge | 45.9333 | -130.0140 | 1540 | 1984 submersible Alvin |
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 |
EPR, northern 17 N segment | active, inferred | mid-ocean ridge | N EPR | 17.6700 | -105.0050 | 2800 | 1997 plume only |
SEIR-WXC27 | active, inferred | mid-ocean ridge | SEIR | -50.4000 | 134.3000 | 2760 | 2015 plume only |
Magic Mountain | active, confirmed | mid-ocean ridge | Explorer Ridge | 49.7500 | -130.2667 | 1850 | 1984 submersible Pisces IV |
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 |
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) |
GEISEIR site 4, segment K1 | active, inferred | mid-ocean ridge | SEIR | -41.2025 | 81.0625 | 2800 | 2010 plume only |
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) |
EPR, 17 12'S | active, confirmed | mid-ocean ridge | S EPR | -17.2000 | -113.1500 | 2590 | 1993 submersible Nautile |
GEISEIR site 36, segment O3 | active, inferred | mid-ocean ridge | SEIR | -47.7009 | 98.0631 | 2700 | 2009 plume only |
Su Causeway | active, inferred | mid-ocean ridge | SWIR | -38.1000 | 48.6000 | 3000 | 2014 leg 2 or 3 of the 30th Chinese Cruise |
GEISEIR site 2, segment J4 | active, inferred | mid-ocean ridge | SEIR | -41.2520 | 79.1030 | 2800 | 1996 plume and dredge only |
MAR, 31 S | active, inferred | mid-ocean ridge | S MAR | -31.7377 | -13.3772 | 3050 | 2013 plume only |
Main Endeavour Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9487 | -129.0981 | 2220 | 1984 submersible Alvin; 1982 dredge only |
Gakkel Ridge, Site 3 | active, inferred | mid-ocean ridge | Gakkel Ridge | 84.4333 | 2.1333 | 4300 | 2001 plume only |
CIR, 8-17 S, Segment 3 | active, inferred | mid-ocean ridge | CIR | -10.6600 | 66.5000 | 3500 | 2010 plume only |
Lucky B | active, inferred | mid-ocean ridge | Lena Trough | 81.3610 | -3.4400 | 4000 | 1999 dredging 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 |
S AMAR 1 | active, inferred | mid-ocean ridge | N MAR | 36.0830 | -34.0830 | 2630 | 1992 plume only; 1994 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 |
Mount Jourdanne | inactive | mid-ocean ridge | SWIR | -27.8500 | 63.9333 | 2940 | 1998 submersible Shinkai 6500 |
Rainbow Bay | active, inferred | mid-ocean ridge | S MAR | -14.0300 | -14.3400 | 2900 | 2009 towed video did not confirm activity |
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 |
Axial Seamount, CASM | active, confirmed | mid-ocean ridge | JdF Ridge | 45.9892 | -130.0272 | 1580 | 1983 submersible Pisces IV |
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 |
MAR, 43 N | active, inferred | mid-ocean ridge | N MAR | 43.0000 | -29.0000 | 3400 | 1986 or earlier 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 |
NESCA | active, confirmed | mid-ocean ridge | Gorda Ridge | 41.0000 | -127.4917 | 3300 | 1988 submersible Alvin; 1986 dredge and photographs did not confirm activity |
EPR, 28.4 S, Segment W4 | active, inferred | mid-ocean ridge | S EPR | -28.4170 | -112.9640 | 2350 | 1998 plume only |
Galapagos Rift, 93.7 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.4970 | -93.7700 | 2220 | 2005 plume only |
Precious Stone Mountain | active, confirmed | mid-ocean ridge | Galapagos Rift | 1.2200 | -101.4900 | 1700 | 2009 deep-tow video and TV grab |
MAR, 27 N | active, inferred | mid-ocean ridge | N MAR | 27.0000 | -44.5000 | 2900 | 1993 plume only |
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 |
Dodo Field | active, confirmed | mid-ocean ridge | CIR | -18.3470 | 65.3050 | 2730 | 2009 submersible Shinkai 6500; 2006 plume only |
SWIR, D62 | active, inferred | mid-ocean ridge | SWIR | -52.2530 | 15.1030 | 3990 | 2000-2001 plume and dredge only |
EPR, 8 53'N | active, inferred | mid-ocean ridge | N EPR | 8.9000 | -104.2000 | 2580 | 1991 plume only |
GEISEIR site 26, segment M4 | active, inferred | mid-ocean ridge | SEIR | -43.6901 | 92.8451 | 2500 | 2009 plume only |
Bai Causeway | active, inferred | mid-ocean ridge | SWIR | -37.9000 | 48.8000 | 3000 | 2014 leg 2 or 3 of the 30th Chinese Cruise |
GEISEIR site 7, segment K3 | active, inferred | mid-ocean ridge | SEIR | -41.8020 | 81.8380 | 2540 | 1996 plume only; 2010 plume only |
Ashadze-1 | active, confirmed | mid-ocean ridge | N MAR | 12.9733 | -44.8633 | 4200 | 2003 TV profiling; 2007 ROV Victor 6000 |
EPR, southern 17 N segment | active, inferred | mid-ocean ridge | N EPR | 16.5800 | -105.3000 | 2700 | 1997 plume only |
SEIR-WXC15 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 135.3000 | 3000 | 2015 plume only |
Magic Mountain, 3-km south | active, inferred | mid-ocean ridge | Explorer Ridge | 49.7250 | -130.2667 | 1850 | 2002 AUV ABE plume only |
Pacific-Antarctic Ridge, 60 S segment | active, inferred | mid-ocean ridge | Pacific-Antarctic Ridge | -60.0000 | -152.0000 | 2300 | 2009 plume only |
DSDP Hole 504B | inactive | mid-ocean ridge | Galapagos Rift | 1.2267 | -83.7300 | 3500 | NotProvided |
GEISEIR site 6, segment K2 | active, inferred | mid-ocean ridge | SEIR | -41.6600 | 81.6617 | 2600 | 2007 plume only; 2010 plume only |
EPR, 18 32'S | active, confirmed | mid-ocean ridge | S EPR | -18.5550 | -113.4160 | 2647 | 1993 submersible Nautile |
EPR, 17 S | active, inferred | mid-ocean ridge | S EPR | -17.0000 | -113.1170 | 2680 | 1993 plume only |
GEISEIR site 37, segment O4 | active, inferred | mid-ocean ridge | SEIR | -47.7483 | 98.1756 | 2800 | 2009 plume only |
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 |
GEISEIR site 15, segment L1 | active, inferred | mid-ocean ridge | SEIR | -41.2230 | 86.3892 | 2500 | 2010 plume only |
Aegir | active, confirmed | mid-ocean ridge | Mohns Ridge | 72.3440 | 1.5550 | 2600 | 2015 ROV Ægir 6000; 2013 plume only; 2015 AUV |
High-Rise Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9666 | -129.0894 | 2200 | 1988 submersible Alvin |
Gakkel Ridge, Site 5 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.3500 | 37.0000 | 3600 | 2001 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 |
Aurora | active, confirmed | mid-ocean ridge | Gakkel Ridge | 82.8833 | -6.2500 | 4100 | 2001 shimmering water in camera tow and sulfide chimney in dredge |
Pito Seamount | active, confirmed | mid-ocean ridge | S EPR | -23.3275 | -111.6402 | 2270 | 1993 submersible Nautile |
Rainbow | active, confirmed | mid-ocean ridge | N MAR | 36.2300 | -33.9020 | 2320 | 1997 submersible Nautile |
Red Sea Rift, 18 N | active, inferred | mid-ocean ridge | Red Sea | 17.9667 | 40.0667 | 1500 | 1980 submersible Pisces XI (deposits 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) |
Petersburgskoe | inactive | mid-ocean ridge | N MAR | 19.8666 | -45.8666 | 3100 | 2010 dredging only |
Axial Seamount, International District | active, confirmed | mid-ocean ridge | JdF Ridge | 45.9266 | -129.9795 | 1544 | 1986 submersible Pisces IV |
Ribeira Quente | active, confirmed | mid-ocean ridge | Terceira Rift | 37.7250 | -25.3160 | 10 | 1986 or earlier, likely from shore or by SCUBA |
Reykjanes Ridge, Area A | active, inferred | mid-ocean ridge | Reykjanes Ridge | 62.4500 | -25.4330 | 500 | NotProvided |
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 |
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 |
EPR, 28.7 S, Segment W4 | active, inferred | mid-ocean ridge | S EPR | -28.7000 | -112.9880 | 2350 | 1998 plume only |
Iguanas-Pinguinos | active, confirmed | mid-ocean ridge | Galapagos Rift | 2.1000 | -91.9350 | 1640 | 2005 towed video Medea |
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 |
MAR, 30 N | active, inferred | mid-ocean ridge | N MAR | 30.0333 | -42.5000 | 3400 | 1993 plume 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 |
SWIR, D82 | active, inferred | mid-ocean ridge | SWIR | -52.2080 | 15.5830 | 4100 | 2000-2001 plume only |
EPR, 9 17'N | active, confirmed | mid-ocean ridge | N EPR | 9.2800 | -104.2166 | 2585 | 1989 Argo I towed video |
GEISEIR site 27, segment M5 | active, inferred | mid-ocean ridge | SEIR | -43.9805 | 93.4571 | 2700 | 2009 plume only |
Lilliput | active, confirmed | mid-ocean ridge | S MAR | -9.5500 | -13.1800 | 1500 | 2005 ROV Quest |
GEISEIR site 10, segment K4 | active, inferred | mid-ocean ridge | SEIR | -42.4770 | 82.7100 | 2500 | 1996 plume only; 2010 plume only |
Ashadze-3 | inactive | mid-ocean ridge | N MAR | 12.9860 | -44.8610 | 4200 | 2005 plume and dredge only |
Teotihuacan | active, confirmed | mid-ocean ridge | N EPR | 15.7333 | -105.4333 | 2300 | 2010 submersible Nautile; 1997 plume only |
SEIR-WXC12 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 136.2500 | 2780 | 2015 plume 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) |
Pacific-Antarctic Ridge, 64 S segment | active, inferred | mid-ocean ridge | Pacific-Antarctic Ridge | -64.5000 | -170.0000 | 2300 | 2009 plume only |
EPR, 1 S | active, inferred | mid-ocean ridge | S EPR | -0.8000 | -102.4600 | 2800 | 2005 plume only |
GEISEIR site 8, segment K3 | active, inferred | mid-ocean ridge | SEIR | -41.8833 | 81.9816 | 2800 | 2010 plume only |
EPR, 20 06'S | active, confirmed | mid-ocean ridge | S EPR | -20.1000 | -113.7080 | 3000 | 1981 Angus camera tow; 1984 submersible Cyana |
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 |
GEISEIR site 38, segment O4 | active, inferred | mid-ocean ridge | SEIR | -48.0048 | 98.8232 | 2800 | 2009 plume only |
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 |
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) |
GEISEIR site 16, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.5883 | 87.2615 | 2500 | 2010 plume only |
Mohns Ridge, 72.8 N | active, inferred | mid-ocean ridge | Mohns Ridge | 72.8060 | 4.1650 | 2300 | 2013 plume only |
Mothra Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9233 | -129.1082 | 2270 | 1996 ROV ROPOS; 1986 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 |
CIR, 8-17 S, Segment 4, 11.2 S | active, inferred | mid-ocean ridge | CIR | -11.2000 | 66.5000 | 3800 | 2010 plume only |
Loki's Castle | active, confirmed | mid-ocean ridge | Mohns Ridge | 73.5500 | 8.1500 | 2400 | 2008 ROV Bathysaurus |
Rapa Nui | active, confirmed | mid-ocean ridge | S EPR | -21.5620 | -114.3000 | 2845 | 1999 submersible Alvin; 1987-1988 deposits only |
Saldanha | active, confirmed | mid-ocean ridge | N MAR | 36.5667 | -33.4333 | 2300 | 1998 submersible Nautile |
Suakin Deep | active, inferred | mid-ocean ridge | Red Sea | 19.6333 | 38.7333 | 2850 | 1972 deposits only |
SWIR, Plume 3, Segment 16 | active, inferred | mid-ocean ridge | SWIR | -30.8500 | 59.3830 | 3900 | 1997 plume only |
EPR, 9 30'N | active, confirmed | mid-ocean ridge | N EPR | 9.5167 | -104.2414 | 2580 | 1989 Argo I towed video |
GEISEIR site 28, segment M6 | active, inferred | mid-ocean ridge | SEIR | -44.7237 | 94.6039 | 2700 | 2009 plume only |
MAR, 33 S | active, inferred | mid-ocean ridge | S MAR | -32.9676 | -14.4517 | 2600 | 2013 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 |
Logatchev-5 | inactive | mid-ocean ridge | N MAR | 14.7500 | -44.9700 | 3100 | 2007 ROV VICTOR 6000 did not find hydrothermal activity |
SESCA | active, inferred | mid-ocean ridge | Gorda Ridge | 40.7500 | -127.5200 | 3300 | 1986 sediments and heat-flow measurements |
EPR, 29.5 S, Segment E1 | active, inferred | mid-ocean ridge | S EPR | -29.5000 | -111.7200 | 2580 | 1998 plume only |
Eye of Mordor Seamount | active, inferred | mid-ocean ridge | Galapagos Rift | 1.9410 | -91.3100 | 1555 | 2005 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 |
TAG | active, confirmed | mid-ocean ridge | N MAR | 26.1367 | -44.8267 | 3670 | 1985 towed camera and temperature anomaly; 1986 submersible Alvin |
EPR, 14 35'S | active, inferred | mid-ocean ridge | S EPR | -14.5830 | -112.6670 | 2630 | 1993 plume only |
CIR, Segment 3, Hydrothermal Plume Site | active, inferred | mid-ocean ridge | CIR | -24.0000 | 69.6667 | 2840 | 1987 plume only; 2005/2006 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 |
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) |
GEISEIR site 22, segment L3 | active, inferred | mid-ocean ridge | SEIR | -42.1130 | 88.0420 | 2400 | 1996 plume only; 2009 plume only |
MAR, 11 26'N | active, inferred | mid-ocean ridge | N MAR | 11.4482 | -43.7035 | 3835 | 2009 plume only |
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 |
SEIR-WXC02 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 137.0000 | 2620 | 2015 plume only |
Dellwood Seamount | inactive | mid-ocean ridge | Explorer Ridge | 50.7470 | -130.8961 | 800 | 1974 or earlier deposits only; 2018 ROV Hercules inactive |
Saguaro Field | active, confirmed | mid-ocean ridge | S EPR | -31.8500 | -112.0333 | 2330 | 1999 submersible Alvin; 1998 plume only |
EPR, 1.4 S, off-axis | active, confirmed | mid-ocean ridge | S EPR | -1.3690 | -102.4560 | 3000 | 2008 towed video |
GEISEIR site 9, segment K3 | active, inferred | mid-ocean ridge | SEIR | -41.9633 | 82.0600 | 2700 | 2010 plume only |
EPR, 20 S | active, inferred | mid-ocean ridge | S EPR | -20.0333 | -113.6843 | 3000 | 1999 submersible Alvin did not confirm activity |
EPR, 17 42'S | active, inferred | mid-ocean ridge | S EPR | -17.7000 | -113.2500 | 2600 | 1993 plume only |
CIR, 8-17 S, Segment 1 | active, inferred | mid-ocean ridge | CIR | -8.2500 | 68.2000 | 3600 | 2010 plume 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, Plume 5 | active, inferred | mid-ocean ridge | SWIR | -27.9170 | 64.4500 | 4000 | 1997 plume only |
Chile Triple Junction, 10 km north | active, inferred | mid-ocean ridge | Chile Rise | -46.2000 | -75.8333 | 3000 | 2010 plume only |
Feather Duster | active, confirmed | mid-ocean ridge | N EPR | 10.9267 | -103.6767 | 2520 | 1984 towed camera and submersible Alvin |
GEISEIR site 17, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.6498 | 87.3481 | 2500 | 2010 plume only |
Floc | active, confirmed | mid-ocean ridge | JdF Ridge | 46.3133 | -129.7050 | 2290 | 1993 DEEPTOW and submersible Alvin |
CIR, 8-17 S, Segment 5, 12.25 S | active, inferred | mid-ocean ridge | CIR | -12.2500 | 65.7000 | 4000 | 2010 plume only |
Kolbeinsey Field | active, confirmed | mid-ocean ridge | Kolbeinsey Ridge | 67.0833 | -18.7167 | 110 | 1988 submersible GEO |
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) |
Gorda Ridge, GR-15 | active, inferred | mid-ocean ridge | Gorda Ridge | 42.9500 | -126.5500 | 3365 | 1985 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) |
Lost City | active, confirmed | mid-ocean ridge | N MAR | 30.1250 | -42.1183 | 800 | 2000 towed video ARGO-II and submersible Alvin |
Medusa | active, confirmed | mid-ocean ridge | N EPR | 9.1404 | -104.2065 | 2580 | 2007 ROV Jason II; 1991 plume only |
GEISEIR site 29, segment M6 | active, inferred | mid-ocean ridge | SEIR | -44.9054 | 94.9673 | 2700 | 2009 plume only |
MAR, 30 S | active, inferred | mid-ocean ridge | S MAR | -29.9505 | -13.8545 | 3379 | 2013 plume only |
South Kurchatov | active, inferred | mid-ocean ridge | N MAR | 40.4670 | -29.5500 | 2900 | 1992 plume only; 1995 plume only |
Logatchev-3 | active, inferred | mid-ocean ridge | N MAR | 14.7083 | -44.9667 | 3100 | 1993-1999 (between these dates) |
Guaymas Basin, Northern Trough | inactive | mid-ocean ridge | Gulf of California | 27.3050 | -111.5067 | 2000 | 1977 submersible Seacliff (hydrothermal deposits only) |
EPR, 29.8 S, Segment E1 | active, inferred | mid-ocean ridge | S EPR | -29.8000 | -111.7300 | 2580 | 1998 plume only |
E Eye of Mordor | inactive | mid-ocean ridge | Galapagos Rift | 1.9058 | -91.2310 | 1600 | 2005 towed video Medea found inactive chimneys |
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 |
MAR, 22 30'N | inactive | mid-ocean ridge | N MAR | 22.5000 | -45.0050 | 2800 | NotProvided |
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 |
SWIR, Plume 6 | active, inferred | mid-ocean ridge | SWIR | -27.7670 | 65.1330 | 3200 | 1997 plume only |
Longqi | active, confirmed | mid-ocean ridge | SWIR | -37.7838 | 49.6494 | 2785 | 2007 towed video sled followed by AUV ABE; 2005 plume only |
MAR, 7 57'S | active, inferred | mid-ocean ridge | S MAR | -7.9500 | -13.4420 | 2600 | 2001 plume only |
Walsh | active, inferred | mid-ocean ridge | Mid-Cayman Rise | 17.8333 | -81.8333 | 4000 | 2009 plume only; 2013 plume only |
MAR, 11 N | active, inferred | mid-ocean ridge | N MAR | 11.0380 | -43.6483 | 4010 | 1984 plume only; 2009 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) |
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 |
SEIR-WXC07 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 138.3000 | 2420 | 2015 plume only |
Explorer Deep | inactive | mid-ocean ridge | Explorer Ridge | 50.1000 | -129.7500 | 3200 | 1969, deposits only |
Chile Rise, Segment N8 | active, inferred | mid-ocean ridge | Chile Rise | -38.7167 | -91.5667 | 3330 | 1998 plume only |
EPR, 2 S | active, confirmed | mid-ocean ridge | S EPR | -2.2200 | -102.6550 | 2900 | 2008 towed video and AUV ABE |
GEISEIR site 11, segment K4 | active, inferred | mid-ocean ridge | SEIR | -42.5375 | 82.8266 | 2600 | 2010 plume only |
Animal Farm | active, confirmed | mid-ocean ridge | S EPR | -18.6080 | -113.4000 | 2675 | 1993 submersible Nautile |
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 |
N Oceanographer | active, inferred | mid-ocean ridge | N MAR | 35.2830 | -34.8670 | 2600 | 1992 plume only |
Aden New Century Mountains | active, inferred | mid-ocean ridge | Aden Ridge | 12.0833 | 45.6667 | 800 | 2000-2001 plume only |
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; |
Chile Triple Junction | active, inferred | mid-ocean ridge | Chile Rise | -46.3000 | -75.8000 | 3000 | 2010 plume only |
Tevnia | active, inferred | mid-ocean ridge | N EPR | 10.3333 | -103.5533 | 2925 | 1994 submersible Alvin did not confirm activity |
GEISEIR site 18, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.7133 | 87.4375 | 2500 | 2010 plume only |
Source | active, confirmed | mid-ocean ridge | JdF Ridge | 46.1550 | -129.8100 | 2055 | 1993 submersible Alvin |
CIR, 8-17 S, Segment 5, 12.6 S | active, inferred | mid-ocean ridge | CIR | -12.6000 | 66.1000 | 3800 | 2010 plume only |
Kolbeinsey Ridge, 69 N | active, inferred | mid-ocean ridge | Kolbeinsey Ridge | 68.7581 | -16.0000 | 1200 | 1980 or earlier sediments only |
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 |
North Cleft, low temperature | active, confirmed | mid-ocean ridge | JdF Ridge | 44.8833 | -130.2667 | 2250 | 1987-1989 camera/CTD tows |
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 |