Clark volcano |
active, confirmed |
arc volcano |
Kermadec Arc |
-36.4490 |
177.8400 |
930 |
2005 submersible Pisces V; 1999 plume only |
CLSC, A3 |
active, confirmed |
back-arc spreading center |
Lau Basin |
-18.6000 |
-176.4500 |
2500 |
1990 submersible Mir |
CLSC, CL_7 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.1333 |
-176.3667 |
2250 |
2009 plume only |
CLSC, CL_8 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.0500 |
-176.3333 |
2250 |
2009 plume only |
CLSC, northern plumes on CL6 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.1333 |
-176.2833 |
2250 |
2009 plume only |
CLSC, plumes on CL1 |
active, inferred |
back-arc spreading center |
Lau Basin |
-17.8667 |
-176.3833 |
2250 |
2009 plume only |
CLSC, southern plumes on CL6 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.5000 |
-176.3833 |
2250 |
2009 plume only |
Kolumbo |
active, confirmed |
arc volcano |
Hellenic Arc, Aegean Sea |
36.5250 |
25.4833 |
500 |
2006 ROV Hercules |
Conical Seamount |
inactive |
arc volcano |
Tabar-Feni Arc |
-3.2500 |
152.6600 |
1050 |
1998 TV grab survey determined inactive |
Consag Basin |
active, inferred |
mid-ocean ridge |
Gulf of California |
30.6333 |
-113.9083 |
140 |
2007 echosounder and grab samples |
Daikoku volcano |
active, confirmed |
arc volcano |
Mariana Arc |
21.3240 |
144.1940 |
450 |
2004 ROV ROPOS; 2003 plume only |
Deception Island |
active, confirmed |
back-arc spreading center |
Bransfield Strait |
-62.9500 |
-60.6500 |
100 |
1995 or earlier intertidal |
Dellwood Seamount |
inactive |
mid-ocean ridge |
Explorer Ridge |
50.7470 |
-130.8961 |
800 |
1974 or earlier deposits only; 2018 ROV Hercules inactive |
DESMOS Cauldron |
active, confirmed |
back-arc spreading center |
Manus Basin |
-3.6958 |
151.8717 |
2000 |
1990 deep-sea monitoring system (DESMOS) video and still cameras |
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 |
Dodo Field |
active, confirmed |
mid-ocean ridge |
CIR |
-18.3470 |
65.3050 |
2730 |
2009 submersible Shinkai 6500; 2006 plume only |
Don Joao de Castro Bank |
active, confirmed |
mid-ocean ridge |
Terceira Rift |
38.2300 |
-26.6300 |
45 |
1995 SCUBA |
Douglas Strait caldera, Thule Island, South Sandwich Islands |
active, inferred |
arc volcano |
South Sandwich Arc |
-59.4167 |
-27.3333 |
625 |
2009 plume only; 2008 or earlier high resolution bathymetry only |
Doyo Seamount |
active, confirmed |
arc volcano |
Izu-Bonin Arc |
27.6833 |
140.8167 |
520 |
1990 submersible Shinkai 2000 |
DSDP Hole 504B |
inactive |
mid-ocean ridge |
Galapagos Rift |
1.2267 |
-83.7300 |
3500 |
NotProvided |
Dugong submarine volcano |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.4500 |
-175.7000 |
1170 |
2008 plume only |
E Eye of Mordor |
inactive |
mid-ocean ridge |
Galapagos Rift |
1.9058 |
-91.2310 |
1600 |
2005 towed video Medea found inactive chimneys |
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 |
East Blanco Depression |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
44.2170 |
-129.6250 |
3460 |
1994 ROV U.S. Navy's Advanced Tethered Vehicle |
East Diamante volcano |
active, confirmed |
arc volcano |
Mariana Arc |
15.9300 |
145.6700 |
457 |
2004 ROV ROPOS; 2003 plume only |
East Mata submarine volcano |
active, inferred |
arc volcano |
Tonga Arc |
-15.1010 |
-173.6780 |
1350 |
2008 plume only; 2009 plume only |
east of Central Spreading Ridge |
inactive |
back-arc spreading center |
North Fiji Basin |
-15.4510 |
174.6902 |
3000 |
NotProvided |
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 |
Edmond Field |
active, confirmed |
mid-ocean ridge |
CIR |
-23.8780 |
69.5960 |
3320 |
2001 ROV Jason |
ELSC3 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.1667 |
-176.3333 |
2140 |
2009 plume only |