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 |
---|---|---|---|---|---|---|---|
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, 18 15'S | active, confirmed | mid-ocean ridge | S EPR | -18.2500 | -113.3500 | 2680 | 1993 submersible Nautile |
Don Joao de Castro Bank | active, confirmed | mid-ocean ridge | Terceira Rift | 38.2300 | -26.6300 | 45 | 1995 SCUBA |
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 |
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 |
Nolan's Nook | active, confirmed | mid-ocean ridge | S EPR | -31.1500 | -111.9167 | 2330 | 1999 submersible Alvin; 1998 plume only |
North Cleft, low temperature | active, confirmed | mid-ocean ridge | JdF Ridge | 44.8833 | -130.2667 | 2250 | 1987-1989 camera/CTD tows |
Galapagos Mounds | active, confirmed | mid-ocean ridge | Galapagos Rift | 1.4500 | -86.1665 | 2700 | 1977 submersible Alvin |
Source | active, confirmed | mid-ocean ridge | JdF Ridge | 46.1550 | -129.8100 | 2055 | 1993 submersible Alvin |
Solitaire Field | active, confirmed | mid-ocean ridge | CIR | -19.5450 | 65.8500 | 2630 | 2009 submersible Shinkai 6500; 2006 plume only |
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 |
EPR, 10 44.6'N | active, confirmed | mid-ocean ridge | N EPR | 10.7433 | -103.6500 | 2580 | 1985 Argo video tow with temperature |
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 |
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 |
AHA Field | active, confirmed | mid-ocean ridge | N EPR | 1.7333 | -102.2830 | 2850 | 2000 towed imaging ARGO-II |
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 |
Aden | active, confirmed | mid-ocean ridge | Aden Ridge | 11.9500 | 43.6667 | 1600 | 1984 submersible Cyana |
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 |
Soria Moria | active, confirmed | mid-ocean ridge | Mohns Ridge | 71.2593 | -5.8146 | 750 | 2005 ROV BIODEEP-05 cruise |
Von Damm | active, confirmed | mid-ocean ridge | Mid-Cayman Rise | 18.3777 | -81.7972 | 2372 | 2010 AUV Autosub6000 and HyBIS TVG; 2009 plume only |
Alarcon Rise, Ja Sit | active, confirmed | mid-ocean ridge | Gulf of California | 23.3765 | -108.5315 | 2304 | 2012 ROV Doc Ricketts |
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 |
Sasquatch Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9969 | -129.0662 | 2200 | 2000 submersible Alvin |
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) |
Evan | active, confirmed | mid-ocean ridge | N MAR | 37.2667 | -32.2833 | 1775 | 2006 submersible Nautile |
EPR, 17 12'S | active, confirmed | mid-ocean ridge | S EPR | -17.2000 | -113.1500 | 2590 | 1993 submersible Nautile |
Semyenov-2 | active, confirmed | mid-ocean ridge | N MAR | 13.5137 | -44.9630 | 2440 | 2009 TV grab and photo-TV profiling; 2007 deposits only |
Calyfield | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.8300 | -89.6083 | 1660 | 2002 submersible Alvin |
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 |
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 |
Beebe | active, confirmed | mid-ocean ridge | Mid-Cayman Rise | 18.5466 | -81.7182 | 4957 | 2010 AUV Autosub6000 and HyBIS TVG; 2009 plume only |
South Cleft | active, confirmed | mid-ocean ridge | JdF Ridge | 44.6667 | -130.3667 | 2250 | 1981 deep-tow photographs; 1984 submersible Alvin |
Zouyu ridge | active, confirmed | mid-ocean ridge | S MAR | -13.2800 | -14.4100 | 2315 | 2009 towed video |
EPR, 9 33'N | active, confirmed | mid-ocean ridge | N EPR | 9.5583 | -104.2500 | 2574 | 1989 Argo I towed video; 1991 submersible Alvin |
Rainbow | active, confirmed | mid-ocean ridge | N MAR | 36.2300 | -33.9020 | 2320 | 1997 submersible Nautile |
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 |
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 |
Alarcon Rise, Meyibo | active, confirmed | mid-ocean ridge | Gulf of California | 23.3553 | -108.5443 | 2295 | 2012 ROV Doc Ricketts |
Longqi | active, confirmed | mid-ocean ridge | SWIR | -37.7838 | 49.6494 | 2785 | 2007 towed video sled followed by AUV ABE; 2005 plume only |
Salty Dawg Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9822 | -129.0756 | 2200 | 1995 submersible Alvin, followed by ROV ROPOS |
EPR, 18 32'S | active, confirmed | mid-ocean ridge | S EPR | -18.5550 | -113.4160 | 2647 | 1993 submersible Nautile |
Lucky Strike | active, confirmed | mid-ocean ridge | N MAR | 37.2933 | -32.2733 | 1740 | 1993 submersible Alvin; 1992 dredge and plume only |
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 |
Flow | active, confirmed | mid-ocean ridge | JdF Ridge | 46.5250 | -129.5783 | 2390 | 1993 ROV ROPOS |
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 |
Pito Seamount | active, confirmed | mid-ocean ridge | S EPR | -23.3275 | -111.6402 | 2270 | 1993 submersible Nautile |
East Blanco Depression | active, confirmed | mid-ocean ridge | JdF Ridge | 44.2170 | -129.6250 | 3460 | 1994 ROV U.S. Navy's Advanced Tethered Vehicle |
Alarcon Rise, Tzab-ek | active, confirmed | mid-ocean ridge | Gulf of California | 23.3526 | -108.5597 | 2249 | 2015 ROV Doc Ricketts |
EPR, 9 40'N | active, confirmed | mid-ocean ridge | N EPR | 9.6500 | -104.2600 | 2572 | 1989 Argo I towed video; 1991 submersible Alvin |
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; |
Saldanha | active, confirmed | mid-ocean ridge | N MAR | 36.5667 | -33.4333 | 2300 | 1998 submersible Nautile |
Eyjafjördur | active, confirmed | mid-ocean ridge | Kolbeinsey Ridge | 65.8500 | -18.1333 | 65 | 1997, likely by SCUBA |
Red Seamount | active, confirmed | mid-ocean ridge | N EPR | 20.8033 | -109.3783 | 2000 | 1982 submersible Alvin |
TAG | active, confirmed | mid-ocean ridge | N MAR | 26.1367 | -44.8267 | 3670 | 1985 towed camera and temperature anomaly; 1986 submersible Alvin |
Middle Valley, Dead Dog Vent Field | active, confirmed | mid-ocean ridge | JdF Ridge | 48.4560 | -128.7088 | 2450 | 1990 HOV Alvin |
EPR, 20 06'S | active, confirmed | mid-ocean ridge | S EPR | -20.1000 | -113.7080 | 3000 | 1981 Angus camera tow; 1984 submersible Cyana |
Aegir | active, confirmed | mid-ocean ridge | Mohns Ridge | 72.3440 | 1.5550 | 2600 | 2015 ROV Ægir 6000; 2013 plume only; 2015 AUV |
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 |
Lilliput | active, confirmed | mid-ocean ridge | S MAR | -9.5500 | -13.1800 | 1500 | 2005 ROV Quest |
Rapa Nui | active, confirmed | mid-ocean ridge | S EPR | -21.5620 | -114.3000 | 2845 | 1999 submersible Alvin; 1987-1988 deposits 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 |
Lost City | active, confirmed | mid-ocean ridge | N MAR | 30.1250 | -42.1183 | 800 | 2000 towed video ARGO-II and submersible Alvin |
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) |
Ashadze-1 | active, confirmed | mid-ocean ridge | N MAR | 12.9733 | -44.8633 | 4200 | 2003 TV profiling; 2007 ROV Victor 6000 |
Saguaro Field | active, confirmed | mid-ocean ridge | S EPR | -31.8500 | -112.0333 | 2330 | 1999 submersible Alvin; 1998 plume only |
Navidad | active, confirmed | mid-ocean ridge | Galapagos Rift | 2.5300 | -94.0750 | 2380 | 2005 towed video Medea |
Middle Valley, Bent Hill Massive Sulfide | active, confirmed | mid-ocean ridge | JdF Ridge | 48.4341 | -128.6812 | 2440 | 1990 HOV Alvin, 1985 deposits only |
Menez Gwen | active, confirmed | mid-ocean ridge | N MAR | 37.8417 | -31.5250 | 865 | 1994 submersible Nautile |
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) |
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) |
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 |
Tempus Fugit | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.7683 | -85.9100 | 2560 | 2011 ROV Little Hercules |
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 |
Ringvent | active, confirmed | mid-ocean ridge | Gulf of California | 27.5083 | -111.6792 | 1740 | 2016 submersible Alvin; 2009 towed camera/CTD/bottles |
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 |
EPR, 9 50'N | active, confirmed | mid-ocean ridge | N EPR | 9.8300 | -104.2900 | 2520 | 1989 Argo I towed video |
Grimsey Field | active, confirmed | mid-ocean ridge | Kolbeinsey Ridge | 66.6067 | -17.6542 | 400 | 1997 submersible Jago |
Baby Bare Seamount | active, confirmed | mid-ocean ridge | JdF Ridge | 47.7100 | -127.7870 | 2600 | 1995 submersible Alvin |
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 |
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 |
Axial Seamount, ASHES | active, confirmed | mid-ocean ridge | JdF Ridge | 45.9333 | -130.0140 | 1540 | 1984 submersible Alvin |
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 |
Pegasus | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.7500 | -88.2000 | 2000 | 2011 ROV Little Hercules |
Deyin-1 | active, confirmed | mid-ocean ridge | S MAR | -15.1666 | -13.3558 | 2850 | 2012 TV-grab; 2011 deposits only; 2013 plume only |
Magic Mountain | active, confirmed | mid-ocean ridge | Explorer Ridge | 49.7500 | -130.2667 | 1850 | 1984 submersible Pisces IV |
Stealth | active, confirmed | mid-ocean ridge | S EPR | -17.6167 | -113.2330 | 2600 | 1996 Argo II towed video; 1993 plume only; 1998 submersible Alvin |
Iguanas-Pinguinos | active, confirmed | mid-ocean ridge | Galapagos Rift | 2.1000 | -91.9350 | 1640 | 2005 towed video Medea |
Main Endeavour Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9487 | -129.0981 | 2220 | 1984 submersible Alvin; 1982 dredge only |
EPR, Ridge 3, 20 40'S | active, confirmed | mid-ocean ridge | S EPR | -20.3333 | -113.6792 | 3050 | 1983 Deep Tow camera |
Aurora | active, confirmed | mid-ocean ridge | Gakkel Ridge | 82.8833 | -6.2500 | 4100 | 2001 shimmering water in camera tow and sulfide chimney in dredge |
NESCA | active, confirmed | mid-ocean ridge | Gorda Ridge | 41.0000 | -127.4917 | 3300 | 1988 submersible Alvin; 1986 dredge and photographs did not confirm activity |
Precious Stone Mountain | active, confirmed | mid-ocean ridge | Galapagos Rift | 1.2200 | -101.4900 | 1700 | 2009 deep-tow video and TV grab |
Axial Seamount, CASM | active, confirmed | mid-ocean ridge | JdF Ridge | 45.9892 | -130.0272 | 1580 | 1983 submersible Pisces IV |
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 |
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 |
Kairei Field | active, confirmed | mid-ocean ridge | CIR | -25.3195 | 70.0400 | 2460 | 2000 ROV Kaiko; 1993 plume only |
Uka Pacha | active, confirmed | mid-ocean ridge | Galapagos Rift | 0.7700 | -88.3000 | 2100 | 2011 ROV Little Hercules |
EPR, 9 17'N | active, confirmed | mid-ocean ridge | N EPR | 9.2800 | -104.2166 | 2585 | 1989 Argo I towed video |
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 |
Nibelungen | active, confirmed | mid-ocean ridge | S MAR | -8.3000 | -13.5200 | 2900 | 2006 AUV ABE followed by ROV Quest; 2004 plume only |
High-Rise Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9666 | -129.0894 | 2200 | 1988 submersible Alvin |
Loki's Castle | active, confirmed | mid-ocean ridge | Mohns Ridge | 73.5500 | 8.1500 | 2400 | 2008 ROV Bathysaurus |
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, 1.4 S, off-axis | active, confirmed | mid-ocean ridge | S EPR | -1.3690 | -102.4560 | 3000 | 2008 towed video |
Axial Seamount, International District | active, confirmed | mid-ocean ridge | JdF Ridge | 45.9266 | -129.9795 | 1544 | 1986 submersible Pisces IV |
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) |
EPR, 26.5 S | active, confirmed | mid-ocean ridge | S EPR | -26.4833 | -112.6250 | 2064 | 1993 submersible Nautile (or earlier) |
Guaymas Basin, Northern Trough_2 | active, confirmed | mid-ocean ridge | Gulf of California | 27.4110 | -111.3879 | 1800 | 2015 ROV Hybis |
Teotihuacan | active, confirmed | mid-ocean ridge | N EPR | 15.7333 | -105.4333 | 2300 | 2010 submersible Nautile; 1997 plume only |
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, 9 30'N | active, confirmed | mid-ocean ridge | N EPR | 9.5167 | -104.2414 | 2580 | 1989 Argo I towed video |
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) |
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 |
Mothra Field | active, confirmed | mid-ocean ridge | JdF Ridge | 47.9233 | -129.1082 | 2270 | 1996 ROV ROPOS; 1986 plume only |
EPR, 21 25'S | active, confirmed | mid-ocean ridge | S EPR | -21.4333 | -114.2917 | 2850 | 1984 submersible Cyana; 1983 deposits only |
Menez Hom | active, confirmed | mid-ocean ridge | N MAR | 37.1500 | -32.4333 | 1802 | 2002 ROV Victor 6000 |
Kolbeinsey Field | active, confirmed | mid-ocean ridge | Kolbeinsey Ridge | 67.0833 | -18.7167 | 110 | 1988 submersible GEO |
EPR, 10 02'N | active, confirmed | mid-ocean ridge | N EPR | 10.0330 | -104.3300 | 2560 | 1992 submersible Alvin |
EPR, 2 S | active, confirmed | mid-ocean ridge | S EPR | -2.2200 | -102.6550 | 2900 | 2008 towed video and AUV ABE |
Feather Duster | active, confirmed | mid-ocean ridge | N EPR | 10.9267 | -103.6767 | 2520 | 1984 towed camera and submersible Alvin |
Edmond Field | active, confirmed | mid-ocean ridge | CIR | -23.8780 | 69.5960 | 3320 | 2001 ROV Jason |
Luso | active, confirmed | mid-ocean ridge | N MAR | 38.9833 | -29.8833 | 570 | 2018 ROV Luso |
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 |
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 |
Medusa | active, confirmed | mid-ocean ridge | N EPR | 9.1404 | -104.2065 | 2580 | 2007 ROV Jason II; 1991 plume only |
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 |
EPR, Ridge 1, 20 40'S | active, confirmed | mid-ocean ridge | S EPR | -20.8333 | -114.1667 | 3000 | 1983 Deep Tow camera |
Floc | active, confirmed | mid-ocean ridge | JdF Ridge | 46.3133 | -129.7050 | 2290 | 1993 DEEPTOW and submersible Alvin |
Ribeira Quente | active, confirmed | mid-ocean ridge | Terceira Rift | 37.7250 | -25.3160 | 10 | 1986 or earlier, likely from shore or by SCUBA |
Central Cleft, off-axis | active, confirmed | mid-ocean ridge | JdF Ridge | 44.7583 | -130.2750 | 2200 | 2000 ROV Tiburon |
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 |
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 |
Galapagos Rift, 95.5 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.6700 | -95.4500 | 3200 | 1990 submersible Alvin did not confirm activity |
MAR, 17 S | active, inferred | mid-ocean ridge | S MAR | -17.2522 | -14.2270 | 3280 | 2013 plume only |
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 |
GEISEIR site 21, segment L3 | active, inferred | mid-ocean ridge | SEIR | -42.0050 | 87.8808 | 2400 | 2010 plume only |
GEISEIR site 11, segment K4 | active, inferred | mid-ocean ridge | SEIR | -42.5375 | 82.8266 | 2600 | 2010 plume only |
Boomerang Seamount | active, inferred | mid-ocean ridge | SEIR | -37.7217 | 77.8250 | 850 | 1996 plume and wax core only |
SWIR, D62 | active, inferred | mid-ocean ridge | SWIR | -52.2530 | 15.1030 | 3990 | 2000-2001 plume and dredge only |
EPR, southern 16 N segment | active, inferred | mid-ocean ridge | N EPR | 15.5000 | -105.4000 | 2300 | 1997 plume only |
EPR, 21 40'S | active, inferred | mid-ocean ridge | S EPR | -21.6340 | -114.3010 | 2730 | 1987-1988 deposits only |
CIR, 8-17 S, Segment 4, 11.2 S | active, inferred | mid-ocean ridge | CIR | -11.2000 | 66.5000 | 3800 | 2010 plume only |
EPR, 17 56'S | active, inferred | mid-ocean ridge | S EPR | -17.9400 | -113.3170 | 2620 | 1993 plume only |
GEISEIR site 33, segment O2 | active, inferred | mid-ocean ridge | SEIR | -47.2383 | 97.1566 | 2700 | 2009 plume only |
Nereus Deep | active, inferred | mid-ocean ridge | Red Sea | 23.1670 | 37.2830 | 2400 | 1972 deposits only |
Gakkel Ridge, 7.5 E | active, inferred | mid-ocean ridge | Gakkel Ridge | 85.0167 | 7.4500 | 3600 | 2001 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) |
MAR, 33 S | active, inferred | mid-ocean ridge | S MAR | -32.9676 | -14.4517 | 2600 | 2013 plume only |
North FAMOUS | active, inferred | mid-ocean ridge | N MAR | 36.9670 | -32.9670 | 2500 | 1994 plume only |
SEIR-WXC22 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 132.1000 | 2950 | 2015 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, 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 |
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 |
EPR, 28 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -28.0170 | -112.9040 | 2130 | 1998 plume only |
SWIR, D82 | active, inferred | mid-ocean ridge | SWIR | -52.2080 | 15.5830 | 4100 | 2000-2001 plume only |
ET | active, inferred | mid-ocean ridge | JdF Ridge | 48.1993 | -128.9257 | 2500 | NotProvided |
MAR, 25 S | active, inferred | mid-ocean ridge | S MAR | -25.3350 | -13.6305 | 2570 | 2013 plume only |
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) |
GEISEIR site 23, segment M2 | active, inferred | mid-ocean ridge | SEIR | -42.0272 | 89.2205 | 2400 | 2009 plume only |
GEISEIR site 12, segment K4 | active, inferred | mid-ocean ridge | SEIR | -42.6600 | 83.0366 | 2600 | 2010 plume only |
GEISEIR site 1, segment J2 | active, inferred | mid-ocean ridge | SEIR | -39.4400 | 78.0920 | 2270 | 1996 plume only |
Stockwork | active, inferred | mid-ocean ridge | JdF Ridge | 47.9000 | -129.1240 | 2300 | 2005 submersible Alvin (need publication to determine if confirmed) |
Split Seamount | active, inferred | mid-ocean ridge | JdF Ridge | 47.6400 | -128.9667 | 2350 | 1990 camera tow (need reference to check if activity confirmed) |
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] |
CIR, 8-17 S, Segment 5, 12.25 S | active, inferred | mid-ocean ridge | CIR | -12.2500 | 65.7000 | 4000 | 2010 plume only |
GEISEIR site 34, segment O3 | active, inferred | mid-ocean ridge | SEIR | -47.4145 | 97.4373 | 2700 | 2009 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 |
near Jade Emperor Mountain, on-axis | active, inferred | mid-ocean ridge | SWIR | -37.8666 | 49.2166 | 3000 | 2010 plume only |
Gakkel Ridge, Site 2 | active, inferred | mid-ocean ridge | Gakkel Ridge | 83.8500 | -2.0000 | 3900 | 2001 plume 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) |
EPR, 28.3 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -28.3000 | -112.9830 | 2220 | 1998 plume only |
SWIR, Plume 3, Segment 16 | active, inferred | mid-ocean ridge | SWIR | -30.8500 | 59.3830 | 3900 | 1997 plume only |
MAR, 30 S | active, inferred | mid-ocean ridge | S MAR | -29.9505 | -13.8545 | 3379 | 2013 plume only |
S AMAR 1 | active, inferred | mid-ocean ridge | N MAR | 36.0830 | -34.0830 | 2630 | 1992 plume only; 1994 plume only |
Area EX/FX | active, inferred | mid-ocean ridge | CIR | -21.4000 | 68.7666 | 3300 | 1986 plume and sediments |
SEIR-WXC17 | active, inferred | mid-ocean ridge | SEIR | -50.3000 | 133.8000 | 2780 | 2015 plume only |
EPR/Tamayo intersection | active, inferred | mid-ocean ridge | N EPR | 22.9333 | -108.0667 | 3200 | 1979 submersible Alvin did not confirm activity |
EPR, 7 S | active, inferred | mid-ocean ridge | S EPR | -7.0000 | -107.5500 | 2600 | 1985/86 or 1989 TV grab |
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, 27 N | active, inferred | mid-ocean ridge | N MAR | 27.0000 | -44.5000 | 2900 | 1993 plume only |
Galapagos Rift, 94.4 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.5300 | -94.3300 | 2400 | 2005 plume only |
MAR, 30.8 S | active, inferred | mid-ocean ridge | S MAR | -30.8327 | -13.4690 | 2950 | 2013 plume only |
GEISEIR site 24, segment M3 | active, inferred | mid-ocean ridge | SEIR | -43.0369 | 91.0357 | 2400 | 2009 plume only |
GEISEIR site 13, segment L1 | active, inferred | mid-ocean ridge | SEIR | -41.0125 | 86.0608 | 2800 | 2010 plume only |
GEISEIR site 3, segment J4 | active, inferred | mid-ocean ridge | SEIR | -41.7720 | 79.7530 | 2800 | 1996 plume only |
AAR KR1, Mujin | active, inferred | mid-ocean ridge | SEIR | -62.1000 | 158.8000 | 2100 | 2011 plume and biological samples |
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) |
CIR, 8-17 S, Segment 5, 12.6 S | active, inferred | mid-ocean ridge | CIR | -12.6000 | 66.1000 | 3800 | 2010 plume only |
GEISEIR site 35, segment O3 | active, inferred | mid-ocean ridge | SEIR | -47.6179 | 97.8678 | 2600 | 2009 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 |
Gakkel Ridge, Site 3 | active, inferred | mid-ocean ridge | Gakkel Ridge | 84.4333 | 2.1333 | 4300 | 2001 plume only |
Puy des Folles | active, inferred | mid-ocean ridge | N MAR | 20.5083 | -45.6417 | 2000 | 1996 submersible Nautile observed only inactive vents |
EPR, 28.4 S, Segment W4 | active, inferred | mid-ocean ridge | S EPR | -28.4170 | -112.9640 | 2350 | 1998 plume only |
SWIR, Plume 5 | active, inferred | mid-ocean ridge | SWIR | -27.9170 | 64.4500 | 4000 | 1997 plume only |
MAR, 28 S | active, inferred | mid-ocean ridge | S MAR | -27.7936 | -13.3730 | 3217 | 2013 plume only |
SEIR-WXC27 | active, inferred | mid-ocean ridge | SEIR | -50.4000 | 134.3000 | 2760 | 2015 plume only |
GEISEIR site 5, segment K1 | active, inferred | mid-ocean ridge | SEIR | -41.2420 | 81.1580 | 2860 | 1996 plume only; 2007 plume only |
Pacific-Antarctic Ridge, 60 S segment | active, inferred | mid-ocean ridge | Pacific-Antarctic Ridge | -60.0000 | -152.0000 | 2300 | 2009 plume only |
MAR, 30 N | active, inferred | mid-ocean ridge | N MAR | 30.0333 | -42.5000 | 3400 | 1993 plume only |
Galapagos Rift, 94.7 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.6000 | -94.7750 | 2690 | 2005 plume only |
MAR, 31 S | active, inferred | mid-ocean ridge | S MAR | -31.7377 | -13.3772 | 3050 | 2013 plume only |
EPR, 17 S | active, inferred | mid-ocean ridge | S EPR | -17.0000 | -113.1170 | 2680 | 1993 plume only |
GEISEIR site 25, segment M4 | active, inferred | mid-ocean ridge | SEIR | -43.3115 | 92.1335 | 2700 | 2009 plume only |
GEISEIR site 14, segment L1 | active, inferred | mid-ocean ridge | SEIR | -41.0716 | 86.1550 | 2700 | 2010 plume only |
Gakkel Ridge, Site 5 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.3500 | 37.0000 | 3600 | 2001 plume only |
AAR KR2 | active, inferred | mid-ocean ridge | SEIR | -60.0000 | 152.5000 | 3200 | 2011 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 |
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 |
Red Sea Rift, 18 N | active, inferred | mid-ocean ridge | Red Sea | 17.9667 | 40.0667 | 1500 | 1980 submersible Pisces XI (deposits only) |
Knipovich Ridge, 75 N | active, inferred | mid-ocean ridge | Knipovich Ridge | 74.8000 | 8.4417 | 3185 | 2000 plume only |
TaiJi | active, inferred | mid-ocean ridge | S MAR | -13.5900 | -14.5200 | 3180 | 2011 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 |
EPR, 28.7 S, Segment W4 | active, inferred | mid-ocean ridge | S EPR | -28.7000 | -112.9880 | 2350 | 1998 plume only |
MAR, 27 S | active, inferred | mid-ocean ridge | S MAR | -27.1476 | -13.4753 | 3341 | 2013 plume only |
Vityaz megamullion | active, inferred | mid-ocean ridge | CIR | -5.4000 | 68.5833 | 3500 | 1979 plume and deposits only |
SEIR-WXC15 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 135.3000 | 3000 | 2015 plume only |
EPR, 14 18'S | active, inferred | mid-ocean ridge | S EPR | -14.3000 | -112.6670 | 2630 | 1993 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 |
GEISEIR site 2, segment J4 | active, inferred | mid-ocean ridge | SEIR | -41.2520 | 79.1030 | 2800 | 1996 plume and dredge only |
Pacific-Antarctic Ridge, 64 S segment | active, inferred | mid-ocean ridge | Pacific-Antarctic Ridge | -64.5000 | -170.0000 | 2300 | 2009 plume only |
SWIR, D20 | active, inferred | mid-ocean ridge | SWIR | -53.0200 | 22.1880 | 4170 | 2000-2001 plume and dredge only |
Lucky Strike segment, southern end | active, inferred | mid-ocean ridge | N MAR | 37.0500 | -32.4200 | 2600 | 1994 plume only |
GEISEIR site 26, segment M4 | active, inferred | mid-ocean ridge | SEIR | -43.6901 | 92.8451 | 2500 | 2009 plume only |
Rainbow Bay | active, inferred | mid-ocean ridge | S MAR | -14.0300 | -14.3400 | 2900 | 2009 towed video did not confirm activity |
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 |
MAR, 4 02'S | active, inferred | mid-ocean ridge | S MAR | -4.0333 | -12.2500 | 4000 | 2005 plume only |
W Los Huellos Caldera | active, inferred | mid-ocean ridge | Galapagos Rift | 1.0000 | -90.6000 | 1600 | 2005 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) |
CIR, 8-17 S, Segment 7 | active, inferred | mid-ocean ridge | CIR | -17.0000 | 66.8000 | 3100 | 2010 plume only |
GEISEIR site 37, segment O4 | active, inferred | mid-ocean ridge | SEIR | -47.7483 | 98.1756 | 2800 | 2009 plume only |
Suakin Deep | active, inferred | mid-ocean ridge | Red Sea | 19.6333 | 38.7333 | 2850 | 1972 deposits 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 |
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, 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 |
EPR, 29.5 S, Segment E1 | active, inferred | mid-ocean ridge | S EPR | -29.5000 | -111.7200 | 2580 | 1998 plume only |
SWIR, 51.7 E | active, inferred | mid-ocean ridge | SWIR | -37.4660 | 51.7320 | 1595 | 2008 plume and dredge only |
MAR, 23 S | active, inferred | mid-ocean ridge | S MAR | -23.7428 | -13.3936 | 2880 | 2013 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 |
SEIR-WXC12 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 136.2500 | 2780 | 2015 plume only |
EPR, Manzanillo Spreading Segment | active, inferred | mid-ocean ridge | N EPR | 18.2500 | -106.3000 | 2600 | 1997 plume only |
EPR, 14 35'S | active, inferred | mid-ocean ridge | S EPR | -14.5830 | -112.6670 | 2630 | 1993 plume only |
GEISEIR site 15, segment L1 | active, inferred | mid-ocean ridge | SEIR | -41.2230 | 86.3892 | 2500 | 2010 plume only |
GEISEIR site 7, segment K3 | active, inferred | mid-ocean ridge | SEIR | -41.8020 | 81.8380 | 2540 | 1996 plume only; 2010 plume only |
SWIR, D36 | active, inferred | mid-ocean ridge | SWIR | -52.7490 | 11.7110 | 3981 | 2000-2001 plume and dredge only |
EPR, 20 S | active, inferred | mid-ocean ridge | S EPR | -20.0333 | -113.6843 | 3000 | 1999 submersible Alvin did not confirm activity |
Mohns Ridge, 72.8 N | active, inferred | mid-ocean ridge | Mohns Ridge | 72.8060 | 4.1650 | 2300 | 2013 plume only |
EPR, 17 42'S | active, inferred | mid-ocean ridge | S EPR | -17.7000 | -113.2500 | 2600 | 1993 plume only |
GEISEIR site 27, segment M5 | active, inferred | mid-ocean ridge | SEIR | -43.9805 | 93.4571 | 2700 | 2009 plume only |
Knipovich Ridge, 77 40'N | active, inferred | mid-ocean ridge | Knipovich Ridge | 77.6300 | 7.5800 | 3000 | 2000 plume only |
Gorda Ridge, EP96B | active, inferred | mid-ocean ridge | Gorda Ridge | 42.5500 | -126.8333 | 3400 | 1984 deposits only; 1996 plume only |
Carlsberg Ridge, 63 40'E | active, inferred | mid-ocean ridge | Carlsberg Ridge | 3.7000 | 63.6666 | 3500 | 2007 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) |
GEISEIR site 38, segment O4 | active, inferred | mid-ocean ridge | SEIR | -48.0048 | 98.8232 | 2800 | 2009 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 |
GEISEIR site 16, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.5883 | 87.2615 | 2500 | 2010 plume only |
EPR, 29.8 S, Segment E1 | active, inferred | mid-ocean ridge | S EPR | -29.8000 | -111.7300 | 2580 | 1998 plume only |
SWIR, 53.2 E | active, inferred | mid-ocean ridge | SWIR | -36.1010 | 53.2550 | 2218 | 2008 plume and dredge only |
MAR, 19 S | active, inferred | mid-ocean ridge | S MAR | -19.3301 | -11.9421 | 2707 | 2013 plume only |
N Oceanographer | active, inferred | mid-ocean ridge | N MAR | 35.2830 | -34.8670 | 2600 | 1992 plume only |
SWIR, Plume 6 | active, inferred | mid-ocean ridge | SWIR | -27.7670 | 65.1330 | 3200 | 1997 plume only |
SEIR-WXC02 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 137.0000 | 2620 | 2015 plume only |
EPR, mid 17 N segment | active, inferred | mid-ocean ridge | N EPR | 17.0000 | -105.3800 | 2750 | 1997 plume only |
MAR, 7 57'S | active, inferred | mid-ocean ridge | S MAR | -7.9500 | -13.4420 | 2600 | 2001 plume only |
GEISEIR site 10, segment K4 | active, inferred | mid-ocean ridge | SEIR | -42.4770 | 82.7100 | 2500 | 1996 plume only; 2010 plume only |
Chile Rise, Segment N8 | active, inferred | mid-ocean ridge | Chile Rise | -38.7167 | -91.5667 | 3330 | 1998 plume only |
SWIR, D50B | active, inferred | mid-ocean ridge | SWIR | -52.4200 | 12.7480 | 3913 | 2000-2001 plume and dredge only |
Galapagos Rift, 93.7 W | active, inferred | mid-ocean ridge | Galapagos Rift | 2.4970 | -93.7700 | 2220 | 2005 plume only |
GEISEIR site 28, segment M6 | active, inferred | mid-ocean ridge | SEIR | -44.7237 | 94.6039 | 2700 | 2009 plume only |
Lucky B | active, inferred | mid-ocean ridge | Lena Trough | 81.3610 | -3.4400 | 4000 | 1999 dredging 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 |
Carlsberg Ridge, 63 50'E | active, inferred | mid-ocean ridge | Carlsberg Ridge | 3.6916 | 63.8333 | 3500 | 2009 plume only; 2012 plume and deposits |
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 |
CIR, 8-17 S, Segment 1 | active, inferred | mid-ocean ridge | CIR | -8.2500 | 68.2000 | 3600 | 2010 plume only |
Aden New Century Mountains | active, inferred | mid-ocean ridge | Aden Ridge | 12.0833 | 45.6667 | 800 | 2000-2001 plume only |
SEIR-WXC07 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 138.3000 | 2420 | 2015 plume only |
EPR, northern 17 N segment | active, inferred | mid-ocean ridge | N EPR | 17.6700 | -105.0050 | 2800 | 1997 plume only |
EPR, 15 24'S | active, inferred | mid-ocean ridge | S EPR | -15.4000 | -112.8350 | 2640 | 1993 plume only |
GEISEIR site 17, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.6498 | 87.3481 | 2500 | 2010 plume only |
GEISEIR site 4, segment K1 | active, inferred | mid-ocean ridge | SEIR | -41.2025 | 81.0625 | 2800 | 2010 plume only |
EPR, 8 53'N | active, inferred | mid-ocean ridge | N EPR | 8.9000 | -104.2000 | 2580 | 1991 plume only |
EPR, 30.1 S, Segment E1 | active, inferred | mid-ocean ridge | S EPR | -30.1330 | -111.7640 | 2480 | 1998 plume only |
SWIR, Plume 1, Segment 17 | active, inferred | mid-ocean ridge | SWIR | -31.1830 | 58.5000 | 3600 | 1997 plume only |
S AMAR 2 | active, inferred | mid-ocean ridge | N MAR | 35.9670 | -34.1830 | 2240 | 1992 plume only; 1994 plume only |
MAR, 43 N | active, inferred | mid-ocean ridge | N MAR | 43.0000 | -29.0000 | 3400 | 1986 or earlier plume only |
GEISEIR site 29, segment M6 | active, inferred | mid-ocean ridge | SEIR | -44.9054 | 94.9673 | 2700 | 2009 plume only |
MAR, 8 10'S | active, inferred | mid-ocean ridge | S MAR | -8.1670 | -13.4670 | 2000 | 2001 plume only |
MAR, 11 26'N | active, inferred | mid-ocean ridge | N MAR | 11.4482 | -43.7035 | 3835 | 2009 plume only |
GEISEIR site 22, segment L3 | active, inferred | mid-ocean ridge | SEIR | -42.1130 | 88.0420 | 2400 | 1996 plume only; 2009 plume only |
Chile Rise, Segment N9A | active, inferred | mid-ocean ridge | Chile Rise | -39.0500 | -91.5833 | 3450 | 1998 plume only |
SWIR, D54 | active, inferred | mid-ocean ridge | SWIR | -52.4370 | 13.3120 | 4029 | 2000-2001 plume and dredge only |
Carlsberg Ridge, CR2003 | active, inferred | mid-ocean ridge | Carlsberg Ridge | 6.0500 | 60.9500 | 3500 | 2003 plume only; 2007 plume only |
Landing Stage | active, inferred | mid-ocean ridge | SWIR | -37.5000 | 51.0000 | 2300 | 2014 leg 2 or 3 of the 30th Chinese Cruise |
Chile Triple Junction, 10 km north | active, inferred | mid-ocean ridge | Chile Rise | -46.2000 | -75.8333 | 3000 | 2010 plume only |
EPR, 1 S | active, inferred | mid-ocean ridge | S EPR | -0.8000 | -102.4600 | 2800 | 2005 plume only |
Reykjanes Ridge, Area A | active, inferred | mid-ocean ridge | Reykjanes Ridge | 62.4500 | -25.4330 | 500 | NotProvided |
SEIR-WXC06 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 138.5500 | 2400 | 2015 plume only |
EPR, southern 17 N segment | active, inferred | mid-ocean ridge | N EPR | 16.5800 | -105.3000 | 2700 | 1997 plume only |
EPR, 16 08'S | active, inferred | mid-ocean ridge | S EPR | -16.1300 | -113.0000 | 2640 | 1993 plume only |
GEISEIR site 18, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.7133 | 87.4375 | 2500 | 2010 plume only |
GEISEIR site 6, segment K2 | active, inferred | mid-ocean ridge | SEIR | -41.6600 | 81.6617 | 2600 | 2007 plume only; 2010 plume only |
Logatchev-3 | active, inferred | mid-ocean ridge | N MAR | 14.7083 | -44.9667 | 3100 | 1993-1999 (between these dates) |
EPR, 30.4 S, Segment E2 | active, inferred | mid-ocean ridge | S EPR | -30.3750 | -111.7640 | 2320 | 1998 plume only |
SWIR, Plume 2, Segment 16 | active, inferred | mid-ocean ridge | SWIR | -31.0670 | 58.9670 | 4200 | 1997 plume only |
MAR, segment south of St. Paul system | active, inferred | mid-ocean ridge | N MAR | 0.5000 | -25.0000 | 3500 | 2013 plume only |
S Oceanographer | active, inferred | mid-ocean ridge | N MAR | 34.8670 | -36.4330 | 3460 | 1992 plume only |
Magic Mountain, 3-km south | active, inferred | mid-ocean ridge | Explorer Ridge | 49.7250 | -130.2667 | 1850 | 2002 AUV ABE plume only |
GEISEIR site 30, segment O1 | active, inferred | mid-ocean ridge | SEIR | -46.6240 | 96.0594 | 2500 | 2009 plume only |
MAR, 11 N | active, inferred | mid-ocean ridge | N MAR | 11.0380 | -43.6483 | 4010 | 1984 plume only; 2009 plume only |
Walsh | active, inferred | mid-ocean ridge | Mid-Cayman Rise | 17.8333 | -81.8333 | 4000 | 2009 plume only; 2013 plume only |
Gakkel Ridge, Site 6 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.5333 | 43.0000 | 3000 | 2001 plume only |
SWIR, D9B | active, inferred | mid-ocean ridge | SWIR | -52.7070 | 18.8170 | 3931 | 2000-2001 plume and dredge only |
Eye of Mordor Seamount | active, inferred | mid-ocean ridge | Galapagos Rift | 1.9410 | -91.3100 | 1555 | 2005 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 |
CIR, 8-17 S, Segment 2 | active, inferred | mid-ocean ridge | CIR | -9.9000 | 66.7500 | 4000 | 2010 plume only |
Area JX | active, inferred | mid-ocean ridge | CIR | -22.9666 | 69.1833 | 3500 | 1986 plume only (camera tow did not confirm) |
Chile Triple Junction | active, inferred | mid-ocean ridge | Chile Rise | -46.3000 | -75.8000 | 3000 | 2010 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 |
Mohns Ridge, 72 N | active, inferred | mid-ocean ridge | Mohns Ridge | 72.0390 | -0.2520 | 2500 | 1987 plume only; 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 |
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 |
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 |
GEISEIR site 8, segment K3 | active, inferred | mid-ocean ridge | SEIR | -41.8833 | 81.9816 | 2800 | 2010 plume only |
EPR, 30.8 S, Segment E2 | active, inferred | mid-ocean ridge | S EPR | -30.7500 | -111.8770 | 2360 | 1998 plume only |
SWIR, unnamed, Segment 26 | active, inferred | mid-ocean ridge | SWIR | -37.6080 | 50.8527 | 2800 | 2008 dredge only DY115-20 Leg 6 |
Su Causeway | active, inferred | mid-ocean ridge | SWIR | -38.1000 | 48.6000 | 3000 | 2014 leg 2 or 3 of the 30th Chinese Cruise |
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 |
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) |
CIR, 8-17 S, Segment 3 | active, inferred | mid-ocean ridge | CIR | -10.6600 | 66.5000 | 3500 | 2010 plume only |
EPR, 17 47'S | active, inferred | mid-ocean ridge | S EPR | -17.7900 | -113.3000 | 2600 | 1993 plume only |
GEISEIR site 31, segment O1 | active, inferred | mid-ocean ridge | SEIR | -46.8956 | 96.5709 | 2600 | 2009 plume only |
Kebrit Deep | active, inferred | mid-ocean ridge | Red Sea | 24.7233 | 36.2767 | 1590 | 1972 deposits only |
Wagner Basin | active, inferred | mid-ocean ridge | Gulf of California | 31.0666 | -114.0833 | 120 | 2007 echosounder and grab samples |
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 |
SESCA | active, inferred | mid-ocean ridge | Gorda Ridge | 40.7500 | -127.5200 | 3300 | 1986 sediments and heat-flow measurements |
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) |
CIR, 8-17 S, Segment 4, 11.3 S | active, inferred | mid-ocean ridge | CIR | -11.3000 | 66.4000 | 3500 | 2010 plume only |
EPR, 27.7 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -27.7000 | -112.9170 | 2105 | 1998 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 |
South Kurchatov | active, inferred | mid-ocean ridge | N MAR | 40.4670 | -29.5500 | 2900 | 1992 plume only; 1995 plume only |
EPR, 16 24'S | active, inferred | mid-ocean ridge | S EPR | -16.4000 | -113.0500 | 2640 | 1993 plume only |
GEISEIR site 20, segment L3 | active, inferred | mid-ocean ridge | SEIR | -41.9508 | 87.8008 | 2400 | 2010 plume only |
GEISEIR site 9, segment K3 | active, inferred | mid-ocean ridge | SEIR | -41.9633 | 82.0600 | 2700 | 2010 plume only |
EPR, 31.4 S, Segment E4 | active, inferred | mid-ocean ridge | S EPR | -31.4330 | -111.9670 | 2350 | 1998 plume only |
SWIR, D57 | active, inferred | mid-ocean ridge | SWIR | -52.2240 | 13.7380 | 3517 | 2000-2001 plume and dredge only |
Bai Causeway | active, inferred | mid-ocean ridge | SWIR | -37.9000 | 48.8000 | 3000 | 2014 leg 2 or 3 of the 30th Chinese Cruise |
S-OH2 | active, inferred | mid-ocean ridge | N MAR | 34.0670 | -37.4830 | 3250 | 2000 or earlier 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 |
EPR, 17 53'S | active, inferred | mid-ocean ridge | S EPR | -17.8800 | -113.3000 | 2610 | 1993 plume only |
GEISEIR site 32, segment O2 | active, inferred | mid-ocean ridge | SEIR | -47.1196 | 96.8947 | 2600 | 2009 plume only |
Shaban Deep | active, inferred | mid-ocean ridge | Red Sea | 26.2250 | 35.3500 | 1540 | 1983 deposits only |
Markov Deep | active, inferred | mid-ocean ridge | N MAR | 5.9100 | -33.1800 | 3500 | 2001-2002 and 2003 dredge only |
Gorda Ridge, GR-15 | active, inferred | mid-ocean ridge | Gorda Ridge | 42.9500 | -126.5500 | 3365 | 1985 plume only |
Consag Basin | active, inferred | mid-ocean ridge | Gulf of California | 30.6333 | -113.9083 | 140 | 2007 echosounder and grab samples |
Gakkel Ridge, Site 8 | active, inferred | mid-ocean ridge | Gakkel Ridge | 86.5333 | 69.0000 | 3500 | 2001 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) |
AMAR | active, inferred | mid-ocean ridge | N MAR | 36.3833 | -33.6500 | 2600 | 1992 plume only; 1994 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 |
Kolbeinsey Ridge, 69 N | active, inferred | mid-ocean ridge | Kolbeinsey Ridge | 68.7581 | -16.0000 | 1200 | 1980 or earlier sediments only |
SEIR-WXC25 | active, inferred | mid-ocean ridge | SEIR | -50.2500 | 131.9000 | 3050 | 2015 plume only |
EPR, 2 S, off-axis | active, inferred | mid-ocean ridge | S EPR | -2.0840 | -102.8270 | 3000 | 2008 plume only |
Tevnia | active, inferred | mid-ocean ridge | N EPR | 10.3333 | -103.5533 | 2925 | 1994 submersible Alvin did not confirm activity |
EPR, 27.9 S, Segment W3 | active, inferred | mid-ocean ridge | S EPR | -27.8670 | -112.9120 | 2180 | 1998 plume only |
Explorer Deep | inactive | mid-ocean ridge | Explorer Ridge | 50.1000 | -129.7500 | 3200 | 1969, deposits only |
Ashadze-4 | inactive | mid-ocean ridge | N MAR | 12.9700 | -44.8500 | 4530 | 2007 ROV VICTOR 6000 did not find hydrothermal activity |
Romanche Fracture Zone | inactive | mid-ocean ridge | S MAR | -0.9767 | -24.5133 | 3100 | NotProvided |
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) |
Squid Forest | inactive | mid-ocean ridge | Kolbeinsey Ridge | 68.0000 | -17.5000 | 900 | 1999 ROV Aglantha |
MAR, 15 50'N | inactive | mid-ocean ridge | N MAR | 15.8667 | -46.6667 | 3000 | NotProvided |
MAR, 25 50'N | inactive | mid-ocean ridge | N MAR | 25.8083 | -44.9833 | 3000 | NotProvided |
Hess Deep | inactive | mid-ocean ridge | Galapagos Rift | 2.2500 | -101.5000 | 5100 | NotProvided |
EPR, 14 N seamount | inactive | mid-ocean ridge | N EPR | 14.1500 | -104.3667 | 2600 | 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] |
Galapagos Rift, 85 50'W | inactive | mid-ocean ridge | Galapagos Rift | 0.7500 | -85.8333 | 2600 | 1988 or earlier submersible observations |
EPR 87D1 Seamount | inactive | mid-ocean ridge | N EPR | 11.5333 | -103.8600 | 2090 | NotProvided |
MAR, 16 46'N | inactive | mid-ocean ridge | N MAR | 16.7950 | -46.3800 | 3300 | NotProvided |
Green Seamount | inactive | mid-ocean ridge | N EPR | 20.8033 | -109.2833 | 2000 | 1982 submersible Alvin observed only inactive |
Galapagos Rift, 95 W | inactive | mid-ocean ridge | Galapagos Rift | 2.5000 | -95.1667 | 2600 | NotProvided |
Gorda Ridge, 41 30'N | inactive | mid-ocean ridge | Gorda Ridge | 41.5167 | -127.4500 | 3350 | 1984 deposits only |
Brown Bear Seamount | inactive | mid-ocean ridge | JdF Ridge | 46.0333 | -130.5500 | 1500 | NotProvided |
MAR, 22 30'N | inactive | mid-ocean ridge | N MAR | 22.5000 | -45.0050 | 2800 | NotProvided |
Petersburgskoe | inactive | mid-ocean ridge | N MAR | 19.8666 | -45.8666 | 3100 | 2010 dredging 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 |
Ashadze-3 | inactive | mid-ocean ridge | N MAR | 12.9860 | -44.8610 | 4200 | 2005 plume and dredge only |
MAR, 23 35'N | inactive | mid-ocean ridge | N MAR | 23.5833 | -45.0000 | 3500 | 1980 submersible Alvin did not observe hydrothermal activity |
DSDP Hole 504B | inactive | mid-ocean ridge | Galapagos Rift | 1.2267 | -83.7300 | 3500 | NotProvided |
Logatchev-5 | inactive | mid-ocean ridge | N MAR | 14.7500 | -44.9700 | 3100 | 2007 ROV VICTOR 6000 did not find hydrothermal activity |
MAR, 24 20'N | inactive | mid-ocean ridge | N MAR | 24.3500 | -46.2000 | 3200 | NotProvided |
MAR, 24 30'N | inactive | mid-ocean ridge | N MAR | 24.5000 | -46.1533 | 3900 | 1987 deposits only |
Owen transform fault | inactive | mid-ocean ridge | Carlsberg Ridge | 9.8333 | 57.9500 | 4500 | NotProvided |
MESO Zone | inactive | mid-ocean ridge | CIR | -23.3927 | 69.2422 | 2850 | 1993 TV grab and water column measurements |
MAR, 12 48'N | inactive | mid-ocean ridge | N MAR | 12.8000 | -44.7883 | 2400 | NotProvided |
SEIR | inactive | mid-ocean ridge | SEIR | -28.0614 | 74.1733 | 5000 | NotProvided |
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 |
Dellwood Seamount | inactive | mid-ocean ridge | Explorer Ridge | 50.7470 | -130.8961 | 800 | 1974 or earlier deposits only; 2018 ROV Hercules inactive |
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 |
W Eye of Mordor | inactive | mid-ocean ridge | Galapagos Rift | 1.9707 | -91.3900 | 1600 | 2005 towed video Medea observed inactive chimneys |
Mount Jourdanne | inactive | mid-ocean ridge | SWIR | -27.8500 | 63.9333 | 2940 | 1998 submersible Shinkai 6500 |
Guaymas Basin, Northern Trough | inactive | mid-ocean ridge | Gulf of California | 27.3050 | -111.5067 | 2000 | 1977 submersible Seacliff (hydrothermal deposits only) |