S AMAR 1 |
active, inferred |
mid-ocean ridge |
N MAR |
36.0830 |
-34.0830 |
2630 |
1992 plume only; 1994 plume only |
Magic Mountain, 3-km south |
active, inferred |
mid-ocean ridge |
Explorer Ridge |
49.7250 |
-130.2667 |
1850 |
2002 AUV ABE plume only |
SWIR, Plume 6 |
active, inferred |
mid-ocean ridge |
SWIR |
-27.7670 |
65.1330 |
3200 |
1997 plume only |
EPR, 1 S |
active, inferred |
mid-ocean ridge |
S EPR |
-0.8000 |
-102.4600 |
2800 |
2005 plume only |
GEISEIR site 29, segment M6 |
active, inferred |
mid-ocean ridge |
SEIR |
-44.9054 |
94.9673 |
2700 |
2009 plume only |
GEISEIR site 22, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.1130 |
88.0420 |
2400 |
1996 plume only; 2009 plume only |
Tonga Arc, Volcano 8 |
active, inferred |
arc volcano |
Tonga Arc |
-22.8433 |
-176.4317 |
240 |
2003 plume and dredge only |
GEISEIR site 18, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.7133 |
87.4375 |
2500 |
2010 plume only |
Central Andaman Trough, rift valley, dredges 9 and 10 |
active, inferred |
back-arc spreading center |
Andaman Basin |
10.4166 |
94.1666 |
3350 |
1994 deposits only |
Gakkel Ridge, 7.5 E |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
85.0167 |
7.4500 |
3600 |
2001 plume only |
NELSC, T08C09 and T08C18 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.4030 |
-174.2630 |
1800 |
2008 plume only |
EPR, northern 17 N segment |
active, inferred |
mid-ocean ridge |
N EPR |
17.6700 |
-105.0050 |
2800 |
1997 plume only |
EPR, 17 47'S |
active, inferred |
mid-ocean ridge |
S EPR |
-17.7900 |
-113.3000 |
2600 |
1993 plume only |
Area JX |
active, inferred |
mid-ocean ridge |
CIR |
-22.9666 |
69.1833 |
3500 |
1986 plume only (camera tow did not confirm) |
Solwara 19 |
active, inferred |
back-arc spreading center |
Manus Basin |
-3.6660 |
148.7640 |
1039 |
2009 commercial ROV Fugro FV300 (activity not confirmed) |
VFR, plume 4 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.3400 |
-176.6590 |
1700 |
2004 plume only |
EPR, 11 45'N, OSC |
active, inferred |
mid-ocean ridge |
N EPR |
11.7775 |
-103.8300 |
2580 |
1984 Angus camera (or 1985 Argo video) tow with temperature; 1988 submersible Alvin dive #2004 (need reference to confirm activity) |
CIR, 8-17 S, Segment 2 |
active, inferred |
mid-ocean ridge |
CIR |
-9.9000 |
66.7500 |
4000 |
2010 plume only |
Bayonnaise Knoll caldera |
active, inferred |
back-arc spreading center |
Izu-Bonin back-arc |
31.9667 |
139.7333 |
900 |
2003 temperature anomalies, but camera survey observed inactive vent deposits |
EPR, 27.7 S, Segment W3 |
active, inferred |
mid-ocean ridge |
S EPR |
-27.7000 |
-112.9170 |
2105 |
1998 plume only |
Pacific-Antarctic Ridge, 64 S segment |
active, inferred |
mid-ocean ridge |
Pacific-Antarctic Ridge |
-64.5000 |
-170.0000 |
2300 |
2009 plume only |
MAR, 30 N |
active, inferred |
mid-ocean ridge |
N MAR |
30.0333 |
-42.5000 |
3400 |
1993 plume only |
CIR, 8-17 S, Segment 6, 14.75 S |
active, inferred |
mid-ocean ridge |
CIR |
-14.7500 |
66.5000 |
3400 |
2010 plume only |
N-ELSC, plume 29 |
active, inferred |
back-arc spreading center |
Lau Basin |
-19.6000 |
-175.9750 |
2700 |
2004 plume only |
West Fiji Ridge |
active, inferred |
back-arc spreading center |
North Fiji Basin |
-17.0000 |
176.0000 |
3000 |
1995 deep tow |
South Sarigan Seamount |
active, inferred |
arc volcano |
Mariana Arc |
16.5800 |
145.7800 |
240 |
2013 ROV HyperDolphin (did not confirm activity) |
ET |
active, inferred |
mid-ocean ridge |
JdF Ridge |
48.1993 |
-128.9257 |
2500 |
NotProvided |
EPR, 20 S |
active, inferred |
mid-ocean ridge |
S EPR |
-20.0333 |
-113.6843 |
3000 |
1999 submersible Alvin did not confirm activity |
SEIR-WXC06 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
138.5500 |
2400 |
2015 plume only |
MAR, 17 S |
active, inferred |
mid-ocean ridge |
S MAR |
-17.2522 |
-14.2270 |
3280 |
2013 plume only |