Stromboli |
active, inferred |
arc volcano |
Aeolian Arc, Tyrrhenian Sea |
38.7890 |
15.2130 |
250 |
1969 Fe crusts only |
GEISEIR site 10, segment K4 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.4770 |
82.7100 |
2500 |
1996 plume only; 2010 plume only |
EPR, 30.1 S, Segment E1 |
active, inferred |
mid-ocean ridge |
S EPR |
-30.1330 |
-111.7640 |
2480 |
1998 plume only |
GEISEIR site 33, segment O2 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.2383 |
97.1566 |
2700 |
2009 plume only |
EPR, 17 53'S |
active, inferred |
mid-ocean ridge |
S EPR |
-17.8800 |
-113.3000 |
2610 |
1993 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) |
SWIR, Plume 2, Segment 16 |
active, inferred |
mid-ocean ridge |
SWIR |
-31.0670 |
58.9670 |
4200 |
1997 plume only |
NWLSC, Southern Caldera |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9000 |
-177.4166 |
2160 |
2008 plume only |
Tonga Arc, Volcano J1 |
active, inferred |
arc volcano |
Tonga Arc |
-17.2400 |
-173.9500 |
560 |
2004 plume only |
Momoko |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.6400 |
-176.7210 |
2180 |
1989 submersible Nautile |
MAR, 19 S |
active, inferred |
mid-ocean ridge |
S MAR |
-19.3301 |
-11.9421 |
2707 |
2013 plume only |
Sisifo |
active, inferred |
arc volcano |
Aeolian Arc, Tyrrhenian Sea |
38.7833 |
13.8666 |
1200 |
2007 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 |
Rumble II West |
active, inferred |
arc volcano |
Kermadec Arc |
-35.3600 |
178.5170 |
1500 |
1996 dredging only; 1999 plume only |
CIR, 8-17 S, Segment 5, 12.25 S |
active, inferred |
mid-ocean ridge |
CIR |
-12.2500 |
65.7000 |
4000 |
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 |
SEIR-WXC07 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
138.3000 |
2420 |
2015 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 |
Vema Fracture Zone |
active, inferred |
other |
N MAR |
10.7100 |
-42.6800 |
5180 |
2015 plume only |
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 |
N Oceanographer |
active, inferred |
mid-ocean ridge |
N MAR |
35.2830 |
-34.8670 |
2600 |
1992 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 |
South Kurchatov |
active, inferred |
mid-ocean ridge |
N MAR |
40.4670 |
-29.5500 |
2900 |
1992 plume only; 1995 plume only |
Aden New Century Mountains |
active, inferred |
mid-ocean ridge |
Aden Ridge |
12.0833 |
45.6667 |
800 |
2000-2001 plume only |
Mariana Trough, plume 2 |
active, inferred |
back-arc spreading center |
Mariana Trough |
12.7610 |
143.4730 |
2950 |
2003 plume only |
Nishinoshima Island |
active, inferred |
arc volcano |
Izu-Bonin Arc |
27.2367 |
140.8783 |
5 |
1975 SCUBA |
Mariana Trough, 16.5 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
16.4010 |
144.8700 |
3829 |
2015 plume only |
Mata Taha |
active, inferred |
arc volcano |
Lau Basin |
-15.0416 |
-173.7833 |
2160 |
2010 plume only |
Galapagos Rift, 94.7 W |
active, inferred |
mid-ocean ridge |
Galapagos Rift |
2.6000 |
-94.7750 |
2690 |
2005 plume only |
Gakkel Ridge, Site 2 |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
83.8500 |
-2.0000 |
3900 |
2001 plume only |