Yokosuka |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
25.2638 |
124.3733 |
2190 |
2016 ROV Kaiko; 2014 plume only |
Rainbow |
active, confirmed |
mid-ocean ridge |
N MAR |
36.2300 |
-33.9020 |
2320 |
1997 submersible Nautile |
Axial Seamount, International District |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
45.9266 |
-129.9795 |
1544 |
1986 submersible Pisces IV |
Macdonald Seamount |
active, confirmed |
intra-plate volcano |
Central Pacific |
-28.9833 |
-140.2500 |
150 |
1989 submersible Cyana |
Haungaroa |
active, inferred |
arc volcano |
Kermadec Arc |
-32.6060 |
-179.6090 |
1165 |
2002 plume only |
MTJ, V12A-04 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9540 |
-174.7110 |
1330 |
2012 plume only |
Mohns Ridge, 72.8 N |
active, inferred |
mid-ocean ridge |
Mohns Ridge |
72.8060 |
4.1650 |
2300 |
2013 plume only |
MAR, 4 02'S |
active, inferred |
mid-ocean ridge |
S MAR |
-4.0333 |
-12.2500 |
4000 |
2005 plume only |
EPR, 28 S, Segment W3 |
active, inferred |
mid-ocean ridge |
S EPR |
-28.0170 |
-112.9040 |
2130 |
1998 plume only |
Rumble II West |
active, inferred |
arc volcano |
Kermadec Arc |
-35.3600 |
178.5170 |
1500 |
1996 dredging only; 1999 plume only |
MAR, 43 N |
active, inferred |
mid-ocean ridge |
N MAR |
43.0000 |
-29.0000 |
3400 |
1986 or earlier plume only |
San Cristobal arc, Target N |
active, inferred |
arc volcano |
Solomons Arc |
-10.5000 |
164.0000 |
2000 |
2002 dredge only |
Vema Fracture Zone |
active, inferred |
other |
N MAR |
10.7100 |
-42.6800 |
5180 |
2015 plume only |
SWIR, 53.2 E |
active, inferred |
mid-ocean ridge |
SWIR |
-36.1010 |
53.2550 |
2218 |
2008 plume and dredge only |
C-ELSC, plume 19 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.8700 |
-176.2170 |
2230 |
2004 plume only |
GEISEIR site 36, segment O3 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.7009 |
98.0631 |
2700 |
2009 plume only |
SEIR-WXC22 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
132.1000 |
2950 |
2015 plume only |
Central Andaman Trough, rift valley, dredges 9 and 10 |
active, inferred |
back-arc spreading center |
Andaman Basin |
10.4166 |
94.1666 |
3350 |
1994 deposits only |
MTJ, T08C05 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.5134 |
-174.7407 |
2100 |
2008 plume only |
Gakkel Ridge, Site 5 |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
86.3500 |
37.0000 |
3600 |
2001 plume only |
GEISEIR site 3, segment J4 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.7720 |
79.7530 |
2800 |
1996 plume only |
Edison Seamount |
active, inferred |
arc volcano |
Tabar-Feni Arc |
-3.3100 |
152.5800 |
1450 |
1994 and 1998 TV grab sampling did not confirm hydrothermal activity |
SWIR, Plume 2, Segment 16 |
active, inferred |
mid-ocean ridge |
SWIR |
-31.0670 |
58.9670 |
4200 |
1997 plume only |
Okinawa Trough, Site ES2 |
active, inferred |
back-arc spreading center |
Okinawa Trough |
28.8137 |
128.1028 |
779 |
1992 dredge only |
N-ELSC, plume 26 |
active, inferred |
back-arc spreading center |
Lau Basin |
-19.8200 |
-176.0420 |
2600 |
2004 plume only |
GEISEIR site 26, segment M4 |
active, inferred |
mid-ocean ridge |
SEIR |
-43.6901 |
92.8451 |
2500 |
2009 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 |
EPR, southern 16 N segment |
active, inferred |
mid-ocean ridge |
N EPR |
15.5000 |
-105.4000 |
2300 |
1997 plume only |
Tonga Arc, Volcano 15 |
active, inferred |
arc volcano |
Tonga Arc |
-23.9000 |
-176.7800 |
1400 |
2003 plume only |
EPR, 17 47'S |
active, inferred |
mid-ocean ridge |
S EPR |
-17.7900 |
-113.3000 |
2600 |
1993 plume only |