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 |
Beebe |
active, confirmed |
mid-ocean ridge |
Mid-Cayman Rise |
18.5466 |
-81.7182 |
4957 |
2010 AUV Autosub6000 and HyBIS TVG; 2009 plume only |
Boomerang Seamount |
active, inferred |
mid-ocean ridge |
SEIR |
-37.7217 |
77.8250 |
850 |
1996 plume and wax core only |
Bounty Seamount |
active, confirmed |
intra-plate volcano |
Central Pacific |
-25.1667 |
-129.4000 |
420 |
1999 submersible Nautile; 1989 plume only |
Broken Spur |
active, confirmed |
mid-ocean ridge |
N MAR |
29.1700 |
-43.1717 |
3100 |
1993 submersible Alvin; earlier in 1993, water column anomalies and towed camera did not confirm activity |
Brothers volcano |
active, confirmed |
arc volcano |
Kermadec Arc |
-34.8667 |
179.0667 |
1800 |
1998 towed camera; 1996 dredging only |
Brown Bear Seamount |
inactive |
mid-ocean ridge |
JdF Ridge |
46.0333 |
-130.5500 |
1500 |
NotProvided |
C-ELSC, plume 13 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.4150 |
-176.3720 |
2100 |
2004 plume only |
C-ELSC, plume 14 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.3200 |
-176.3640 |
2100 |
2004 plume only |
C-ELSC, plume 15 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.2700 |
-176.3470 |
2230 |
2004 plume only |
C-ELSC, plume 17 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.9900 |
-176.2530 |
2270 |
2004 plume only |
C-ELSC, plume 18 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.9500 |
-176.2390 |
2230 |
2004 plume only |
C-ELSC, plume 19 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.8700 |
-176.2170 |
2230 |
2004 plume only |
C-ELSC, unnamed |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.1070 |
-176.2920 |
2300 |
2004 (assume submersible Shinkai 6500); 2004 plume only on previous cruise |
Calyfield |
active, confirmed |
mid-ocean ridge |
Galapagos Rift |
0.8300 |
-89.6083 |
1660 |
2002 submersible Alvin |
Calypso Vents |
active, confirmed |
back-arc spreading center |
Taupo Volcanic Zone |
-37.6800 |
177.1170 |
200 |
1989 submersible Soucoup |
Capo Miseno, Gulf of Naples |
active, confirmed |
other |
Coastal Italy |
40.7833 |
14.0833 |
20 |
1982 or earlier, likely by SCUBA |
Capo Palinuro |
active, confirmed |
other |
Coastal Italy |
40.0167 |
15.2667 |
30 |
1990 or earlier, likely by SCUBA |
Carlsberg Ridge, 1.67 S |
inactive |
mid-ocean ridge |
Carlsberg Ridge |
-1.6768 |
67.7700 |
4500 |
NotProvided |
Carlsberg Ridge, CR2003 |
active, inferred |
mid-ocean ridge |
Carlsberg Ridge |
6.0500 |
60.9500 |
3500 |
2003 plume only; 2007 plume only |
Tahi Moana 1 |
active, confirmed |
back-arc spreading center |
Lau Basin |
-20.6900 |
-176.1800 |
2256 |
2008 commercial ROV; 2004 plume only |
central Manus Basin, Bismarck Sea |
inactive |
back-arc spreading center |
Manus Basin |
-3.4199 |
150.1681 |
2500 |
NotProvided |
Central Spreading Ridge, Station 19 S |
active, inferred |
back-arc spreading center |
North Fiji Basin |
-19.0000 |
173.5000 |
3000 |
1991 submersible Shinkai 6500 did not confirm activity |
Chamorro volcano |
active, confirmed |
arc volcano |
Mariana Arc |
20.8100 |
144.7050 |
896 |
2016 ROV Deep Discoverer; 2003 plume only |
Champagne Hot Springs |
active, confirmed |
arc volcano |
Lesser Antilles Arc |
15.2500 |
-61.3830 |
5 |
2001 or earlier (assume SCUBA) |
Chile Rise, Segment N8 |
active, inferred |
mid-ocean ridge |
Chile Rise |
-38.7167 |
-91.5667 |
3330 |
1998 plume only |
Chile Rise, Segment N9A |
active, inferred |
mid-ocean ridge |
Chile Rise |
-39.0500 |
-91.5833 |
3450 |
1998 plume only |
Epi Caldera |
active, confirmed |
arc volcano |
New Hebrides Arc |
-16.6870 |
168.4000 |
320 |
2013 ROV Kiel6000; 1974 sediment samples only; 2001 plume and camera tow (did not confirm activity) |
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 |
CIR, Segment 3, Hydrothermal Plume Site |
active, inferred |
mid-ocean ridge |
CIR |
-24.0000 |
69.6667 |
2840 |
1987 plume only; 2005/2006 plume only |