W Los Huellos Caldera |
active, inferred |
mid-ocean ridge |
Galapagos Rift |
1.0000 |
-90.6000 |
1600 |
2005 plume only |
Gakkel Ridge, 85 E |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
85.6500 |
84.8333 |
3900 |
2001 plume only; 2007 towed video did not confirm activity |
GEISEIR site 15, segment L1 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.2230 |
86.3892 |
2500 |
2010 plume only |
Knipovich Ridge, 76 48'N |
active, inferred |
mid-ocean ridge |
Knipovich Ridge |
76.7833 |
8.0000 |
3500 |
1996 temperature anomaly and towed video did not confirm activity |
Eva |
active, inferred |
arc volcano |
New Hebrides Arc |
-22.0000 |
170.7500 |
1600 |
2008 plume only |
CLSC, CL_8 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.0500 |
-176.3333 |
2250 |
2009 plume only |
Kavachi submarine volcano |
active, inferred |
arc volcano |
Solomons Arc |
-8.9833 |
157.9667 |
500 |
2000 plume only |
SWIR, Plume 6 |
active, inferred |
mid-ocean ridge |
SWIR |
-27.7670 |
65.1330 |
3200 |
1997 plume only |
Tonga Arc, Volcano 14 |
active, inferred |
arc volcano |
Tonga Arc |
-23.5750 |
-176.7050 |
985 |
2003 plume and dredge only |
Tevnia |
active, inferred |
mid-ocean ridge |
N EPR |
10.3333 |
-103.5533 |
2925 |
1994 submersible Alvin did not confirm activity |
Aden New Century Mountains |
active, inferred |
mid-ocean ridge |
Aden Ridge |
12.0833 |
45.6667 |
800 |
2000-2001 plume only |
EPR, 20 S |
active, inferred |
mid-ocean ridge |
S EPR |
-20.0333 |
-113.6843 |
3000 |
1999 submersible Alvin did not confirm activity |
N-ELSC, plume 22 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.4000 |
-176.1580 |
2700 |
2004 plume only |
NWLSC, Southern Caldera |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9000 |
-177.4166 |
2160 |
2008 plume only |
CIR, 8-17 S, Segment 1 |
active, inferred |
mid-ocean ridge |
CIR |
-8.2500 |
68.2000 |
3600 |
2010 plume only |
Atlantis II Deep |
active, inferred |
mid-ocean ridge |
Red Sea |
21.3417 |
38.0750 |
2200 |
1965 "confirmed" hot brine and cored seafloor, but see Table 1 in Miller et al. (1966) for historical measurements |
EPR, 29.8 S, Segment E1 |
active, inferred |
mid-ocean ridge |
S EPR |
-29.8000 |
-111.7300 |
2580 |
1998 plume only |
Solwara 18 |
active, inferred |
back-arc spreading center |
Manus Basin |
-3.0760 |
147.2390 |
1308 |
2008 plumes with some sites subsequently observed with ROV; 2009 commercial ROV Fugro FV300 (activity not confirmed) |
Kuiwai |
active, inferred |
arc volcano |
Kermadec Arc |
-33.1560 |
-179.9560 |
630 |
2002 plume only |
Alarcon Rise/Tamayo intersection |
active, inferred |
mid-ocean ridge |
Gulf of California |
23.2336 |
-108.6168 |
2358 |
2015 ROV Doc Ricketts did not confirm activity |
Makhahnas |
active, inferred |
arc volcano |
Mariana Arc |
20.5300 |
144.8833 |
420 |
2003 no plume detected |
Mohns Ridge, 72 N |
active, inferred |
mid-ocean ridge |
Mohns Ridge |
72.0390 |
-0.2520 |
2500 |
1987 plume only; 2013 plume only |
SEIR-WXC07 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
138.3000 |
2420 |
2015 plume only |
C-ELSC, plume 19 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.8700 |
-176.2170 |
2230 |
2004 plume only |
Boomerang Seamount |
active, inferred |
mid-ocean ridge |
SEIR |
-37.7217 |
77.8250 |
850 |
1996 plume and wax core only |
MAR, 8 10'S |
active, inferred |
mid-ocean ridge |
S MAR |
-8.1670 |
-13.4670 |
2000 |
2001 plume only |
EPR, 10 34'S |
active, inferred |
mid-ocean ridge |
S EPR |
-10.5667 |
-110.2800 |
2900 |
1985/86 or 1989 TV grab (need to check references to confirm activity) |
GEISEIR site 10, segment K4 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.4770 |
82.7100 |
2500 |
1996 plume only; 2010 plume only |
Vityaz megamullion |
active, inferred |
mid-ocean ridge |
CIR |
-5.4000 |
68.5833 |
3500 |
1979 plume and deposits only |
Galapagos Rift, 95.5 W |
active, inferred |
mid-ocean ridge |
Galapagos Rift |
2.6700 |
-95.4500 |
3200 |
1990 submersible Alvin did not confirm activity |