MAR, 28 S |
active, inferred |
mid-ocean ridge |
S MAR |
-27.7936 |
-13.3730 |
3217 |
2013 plume only |
GEISEIR site 32, segment O2 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.1196 |
96.8947 |
2600 |
2009 plume only |
SWIR, 53.2 E |
active, inferred |
mid-ocean ridge |
SWIR |
-36.1010 |
53.2550 |
2218 |
2008 plume and dredge only |
Ahyi |
active, inferred |
arc volcano |
Mariana Arc |
20.4200 |
145.0300 |
60 |
2003 plume only |
EPR, 30.1 S, Segment E1 |
active, inferred |
mid-ocean ridge |
S EPR |
-30.1330 |
-111.7640 |
2480 |
1998 plume only |
S-OH2 |
active, inferred |
mid-ocean ridge |
N MAR |
34.0670 |
-37.4830 |
3250 |
2000 or earlier plume only |
Gakkel Ridge, 7.5 E |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
85.0167 |
7.4500 |
3600 |
2001 plume only |
GEISEIR site 22, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.1130 |
88.0420 |
2400 |
1996 plume only; 2009 plume only |
SEIR-WXC15 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
135.3000 |
3000 |
2015 plume only |
Little Volcano |
active, inferred |
back-arc spreading center |
Bransfield Strait |
-62.7500 |
-59.2500 |
1500 |
1995 plume only |
Carlsberg Ridge, CR2003 |
active, inferred |
mid-ocean ridge |
Carlsberg Ridge |
6.0500 |
60.9500 |
3500 |
2003 plume only; 2007 plume only |
CIR, 8-17 S, Segment 4, 11.2 S |
active, inferred |
mid-ocean ridge |
CIR |
-11.2000 |
66.5000 |
3800 |
2010 plume only |
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 |
SWIR, Plume 2, Segment 16 |
active, inferred |
mid-ocean ridge |
SWIR |
-31.0670 |
58.9670 |
4200 |
1997 plume only |
Momoko |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.6400 |
-176.7210 |
2180 |
1989 submersible Nautile |
FRSC, 14b, 16.11 S |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.1150 |
-174.5680 |
2250 |
2008 plume only |
Zealandia |
active, inferred |
arc volcano |
Mariana Arc |
16.8800 |
145.8500 |
144 |
2003 plume only; 2009 or earlier ROV did not confirm activity |
EPR, 15 24'S |
active, inferred |
mid-ocean ridge |
S EPR |
-15.4000 |
-112.8350 |
2640 |
1993 plume only |
Tonga Arc, Volcano A |
active, inferred |
arc volcano |
Tonga Arc |
-20.8600 |
-175.5500 |
700 |
2004 plume only |
MTJ, T08C01 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9629 |
-174.7961 |
2400 |
2008 plume only |
N Oceanographer |
active, inferred |
mid-ocean ridge |
N MAR |
35.2830 |
-34.8670 |
2600 |
1992 plume only |
GEISEIR site 21, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.0050 |
87.8808 |
2400 |
2010 plume only |
EPR, northern 17 N segment |
active, inferred |
mid-ocean ridge |
N EPR |
17.6700 |
-105.0050 |
2800 |
1997 plume only |
Logatchev-3 |
active, inferred |
mid-ocean ridge |
N MAR |
14.7083 |
-44.9667 |
3100 |
1993-1999 (between these dates) |
GEISEIR site 11, segment K4 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.5375 |
82.8266 |
2600 |
2010 plume only |
Solwara 19 |
active, inferred |
back-arc spreading center |
Manus Basin |
-3.6660 |
148.7640 |
1039 |
2009 commercial ROV Fugro FV300 (activity not confirmed) |
MAR, 30.8 S |
active, inferred |
mid-ocean ridge |
S MAR |
-30.8327 |
-13.4690 |
2950 |
2013 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) |
Stockwork |
active, inferred |
mid-ocean ridge |
JdF Ridge |
47.9000 |
-129.1240 |
2300 |
2005 submersible Alvin (need publication to determine if confirmed) |
Kos, south |
active, inferred |
arc volcano |
Hellenic Arc, Aegean Sea |
36.6667 |
27.2500 |
450 |
1997 plume only |