Peggy Ridge |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.9233 |
-176.8250 |
1900 |
1975 or earlier rock samples only; inactive in systematic survey on Arculus cruise SS07/2008 |
SWIR, D82 |
active, inferred |
mid-ocean ridge |
SWIR |
-52.2080 |
15.5830 |
4100 |
2000-2001 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 |
Stockwork |
active, inferred |
mid-ocean ridge |
JdF Ridge |
47.9000 |
-129.1240 |
2300 |
2005 submersible Alvin (need publication to determine if confirmed) |
NE Anatahan submarine volcano |
active, inferred |
arc volcano |
Mariana Arc |
16.3750 |
145.7250 |
460 |
2003 multibeam and sidescan sonar only |
SEIR-WXC06 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
138.5500 |
2400 |
2015 plume only |
Kavachi submarine volcano |
active, inferred |
arc volcano |
Solomons Arc |
-8.9833 |
157.9667 |
500 |
2000 plume only |
N-ELSC, plume 22 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.4000 |
-176.1580 |
2700 |
2004 plume only |
CLSC, CL_8 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.0500 |
-176.3333 |
2250 |
2009 plume only |
Mata Ono |
active, inferred |
arc volcano |
Lau Basin |
-14.9333 |
-173.7916 |
2600 |
2010 plume only |
CIR, 8-17 S, Segment 1 |
active, inferred |
mid-ocean ridge |
CIR |
-8.2500 |
68.2000 |
3600 |
2010 plume only |
Okinawa Trough, Site ES1 |
active, inferred |
back-arc spreading center |
Okinawa Trough |
30.3303 |
129.0827 |
521 |
1992 dredge only |
Mariana Trough, 18.2 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
18.1080 |
144.7380 |
3916 |
2015 plume only |
Kuwae submarine caldera |
active, inferred |
arc volcano |
New Hebrides Arc |
-16.8300 |
168.5300 |
484 |
2001 plume and inconclusive grab samples |
VFR, plume 4 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.3400 |
-176.6590 |
1700 |
2004 plume only |
GEISEIR site 4, segment K1 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.2025 |
81.0625 |
2800 |
2010 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) |
Europa |
active, inferred |
mid-ocean ridge |
Mid-Cayman Rise |
18.3500 |
-81.8500 |
2400 |
2009 plume only, not observed on dive with hybrid ROV Nereus |
Mohns Ridge, 72 N |
active, inferred |
mid-ocean ridge |
Mohns Ridge |
72.0390 |
-0.2520 |
2500 |
1987 plume only; 2013 plume only |
San Cristobal arc, Target N |
active, inferred |
arc volcano |
Solomons Arc |
-10.5000 |
164.0000 |
2000 |
2002 dredge only |
C-ELSC, plume 19 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.8700 |
-176.2170 |
2230 |
2004 plume only |
Wagner Basin |
active, inferred |
mid-ocean ridge |
Gulf of California |
31.0666 |
-114.0833 |
120 |
2007 echosounder and grab samples |
Boomerang Seamount |
active, inferred |
mid-ocean ridge |
SEIR |
-37.7217 |
77.8250 |
850 |
1996 plume and wax core only |
Magic Mountain, 3-km south |
active, inferred |
mid-ocean ridge |
Explorer Ridge |
49.7250 |
-130.2667 |
1850 |
2002 AUV ABE plume only |
GEISEIR site 29, segment M6 |
active, inferred |
mid-ocean ridge |
SEIR |
-44.9054 |
94.9673 |
2700 |
2009 plume 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 |
GEISEIR site 18, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.7133 |
87.4375 |
2500 |
2010 plume only |
Gakkel Ridge, Site 5 |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
86.3500 |
37.0000 |
3600 |
2001 plume only |
Pobeda-1 |
active, inferred |
mid-ocean ridge |
N MAR |
17.1500 |
-46.4200 |
3100 |
2014/2015 video profiling, TVgrab and corer |
EPR, 30.1 S, Segment E1 |
active, inferred |
mid-ocean ridge |
S EPR |
-30.1330 |
-111.7640 |
2480 |
1998 plume only |