Dugong submarine volcano |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.4500 |
-175.7000 |
1170 |
2008 plume only |
EPR, 31.4 S, Segment E4 |
active, inferred |
mid-ocean ridge |
S EPR |
-31.4330 |
-111.9670 |
2350 |
1998 plume only |
S AMAR 2 |
active, inferred |
mid-ocean ridge |
N MAR |
35.9670 |
-34.1830 |
2240 |
1992 plume only; 1994 plume only |
VFR, plume 12 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.7300 |
-176.4530 |
1910 |
2004 plume only |
Tonga Arc, Volcano 4 |
active, inferred |
arc volcano |
Tonga Arc |
-22.0670 |
-176.2080 |
200 |
2003 plume and dredge only |
MTJ, T08C03 and T08C04 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.6100 |
-174.8200 |
2300 |
2008 plume only |
Eye of Mordor Seamount |
active, inferred |
mid-ocean ridge |
Galapagos Rift |
1.9410 |
-91.3100 |
1555 |
2005 plume only |
N-ELSC, plume 27 |
active, inferred |
back-arc spreading center |
Lau Basin |
-19.7500 |
-176.0190 |
2570 |
2004 plume only; 2009 plume only |
SEIR-WXC22 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
132.1000 |
2950 |
2015 plume only |
Chile Triple Junction |
active, inferred |
mid-ocean ridge |
Chile Rise |
-46.3000 |
-75.8000 |
3000 |
2010 plume only |
GEISEIR site 1, segment J2 |
active, inferred |
mid-ocean ridge |
SEIR |
-39.4400 |
78.0920 |
2270 |
1996 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 |
Little Volcano |
active, inferred |
back-arc spreading center |
Bransfield Strait |
-62.7500 |
-59.2500 |
1500 |
1995 plume only |
GEISEIR site 9, segment K3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.9633 |
82.0600 |
2700 |
2010 plume only |
MAR, 14 54'N |
active, inferred |
mid-ocean ridge |
N MAR |
14.9200 |
-44.9000 |
3500 |
1988 or earlier seafloor photographs did not confirm hydrothermal activity |
MAR, 30.8 S |
active, inferred |
mid-ocean ridge |
S MAR |
-30.8327 |
-13.4690 |
2950 |
2013 plume only |
MAR, 30 S |
active, inferred |
mid-ocean ridge |
S MAR |
-29.9505 |
-13.8545 |
3379 |
2013 plume only |
Gakkel Ridge, 7.5 E |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
85.0167 |
7.4500 |
3600 |
2001 plume only |
New World Seamount |
active, inferred |
arc volcano |
Tabar-Feni Arc |
-2.8333 |
152.5333 |
1200 |
2000 or earlier (cruise FR04/00 implies that they already suspected hydrothermal activity); 1994 seamount discovered |
C-ELSC, plume 13 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.4150 |
-176.3720 |
2100 |
2004 plume only |
SWIR, 51.7 E |
active, inferred |
mid-ocean ridge |
SWIR |
-37.4660 |
51.7320 |
1595 |
2008 plume and dredge only |
Walsh |
active, inferred |
mid-ocean ridge |
Mid-Cayman Rise |
17.8333 |
-81.8333 |
4000 |
2009 plume only; 2013 plume only |
EPR, 15 24'S |
active, inferred |
mid-ocean ridge |
S EPR |
-15.4000 |
-112.8350 |
2640 |
1993 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 |
GEISEIR site 34, segment O3 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.4145 |
97.4373 |
2700 |
2009 plume only |
EPR, 28 S, Segment W3 |
active, inferred |
mid-ocean ridge |
S EPR |
-28.0170 |
-112.9040 |
2130 |
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 |
Pacific-Antarctic Ridge, 64 S segment |
active, inferred |
mid-ocean ridge |
Pacific-Antarctic Ridge |
-64.5000 |
-170.0000 |
2300 |
2009 plume only |
FRSC, 11a-3 |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.7950 |
-174.5230 |
2000 |
2008 plume only |