FRSC, 14b, 16.11 S |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.1150 |
-174.5680 |
2250 |
2008 plume only |
VFR, unnamed |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.5150 |
-176.6500 |
1970 |
2004 plume only |
C-ELSC, plume 13 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.4150 |
-176.3720 |
2100 |
2004 plume only |
Natsushima 84-1 Knoll |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
27.5750 |
127.1417 |
1600 |
1986 submersible Shinkai 2000 |
Franklin Seamount |
active, confirmed |
back-arc spreading center |
Woodlark Basin |
-9.9083 |
151.8300 |
2366 |
1990 submersible Mir |
Perseverance |
active, confirmed |
back-arc spreading center |
Mariana Trough |
15.4802 |
144.5077 |
3935 |
2016 ROV SuBastian; 2015 AUV Sentry plume mapping |
Starfish Seamount, Tinakula |
active, confirmed |
back-arc spreading center |
New Hebrides back-arc |
-12.2028 |
167.6139 |
1204 |
2011 commercial ROV; 1989 plume only; 1989 towed camera survey did not confirm activity; 2002 plume and dredge only |
Izena Cauldron |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
27.2667 |
127.0833 |
1610 |
1988 submersible Shinkai 2000 |
Tahi Moana 2 |
active, confirmed |
back-arc spreading center |
Lau Basin |
-21.9200 |
-176.5330 |
1870 |
1989 submersible Nautile (need reference to check if activity confirmed); 2004 plume only; 2008 commercial ROV (report does not confirm activity) |
C-ELSC, plume 14 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.3200 |
-176.3640 |
2100 |
2004 plume only |
Sonne 99 |
active, confirmed |
back-arc spreading center |
North Fiji Basin |
-16.9500 |
173.9167 |
1980 |
1995 deep tow video and TV-grab |
western Manus Basin, Bismarck Sea |
inactive |
back-arc spreading center |
Manus Basin |
-3.0000 |
147.0000 |
1800 |
NotProvided |
FRSC, 11a-3 |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.7950 |
-174.5230 |
2000 |
2008 plume only |
Vienna Woods |
active, confirmed |
back-arc spreading center |
Manus Basin |
-3.1667 |
150.2833 |
2500 |
1990 TV-grab (also same year, sampled by submersible Mir); 1985 (or 1986) camera tow vent fauna and inactive chimneys |
NE Pual |
active, confirmed |
back-arc spreading center |
Manus Basin |
-3.6754 |
151.7272 |
1875 |
2006 ROV Jason II |
Marsili |
active, confirmed |
back-arc spreading center |
Tyrrhenian Back-Arc Basin, Tyrrhenian Sea |
39.2600 |
14.3780 |
800 |
2006 ROV Cherokee; 1989 shimmering water but did not confirm activity |
NELSC, T08C12 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.2179 |
-174.1788 |
2000 |
2008 plume only |
Deception Island |
active, confirmed |
back-arc spreading center |
Bransfield Strait |
-62.9500 |
-60.6500 |
100 |
1995 or earlier intertidal |
FRSC, Central |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.4917 |
-174.5417 |
2419 |
2004 plume only |
Hafa Adai |
active, confirmed |
back-arc spreading center |
Mariana Trough |
16.9570 |
144.8680 |
3294 |
2016 ROV Deep Discoverer; 2015 AUV Sentry plume mapping |
Station 58, N160 Axis |
active, inferred |
back-arc spreading center |
North Fiji Basin |
-16.3167 |
173.5500 |
3900 |
1985 plume only; 1991 temperature anomalies but submersible Shinkai 6500 did not confirm activity |
Pika |
active, confirmed |
back-arc spreading center |
Mariana Trough |
12.9183 |
143.6483 |
2990 |
2003 submersible Shinkai 6500; 2003 plume only |
Tahi Moana 7 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.3300 |
-174.2500 |
1940 |
2004 plume only; 2008 plume only; 2009 video camera tow (activity not confirmed) |
Tu'i Malila |
active, confirmed |
back-arc spreading center |
Lau Basin |
-21.9876 |
-176.5678 |
1870 |
2005 ROV Jason II; 2004 plume only |
C-ELSC, plume 15 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.2700 |
-176.3470 |
2230 |
2004 plume only |
Whale Island |
active, confirmed |
back-arc spreading center |
Taupo Volcanic Zone |
-37.8600 |
176.9800 |
42 |
1990 or earlier, likely by SCUBA |
Momoko |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.6400 |
-176.7210 |
2180 |
1989 submersible Nautile |
FRSC, T12A-01 |
active, inferred |
back-arc spreading center |
Lau Basin |
-17.7850 |
-174.5260 |
500 |
2012 plume only |
Vienna Woods, Hydrothermal Field 4 |
active, confirmed |
back-arc spreading center |
Manus Basin |
-3.3712 |
150.0360 |
2240 |
1990 TV-grab |
Tafu |
active, confirmed |
back-arc spreading center |
Lau Basin |
-15.3833 |
-174.2500 |
1400 |
2008 or 2009 commercial ROV; 2008 plume only; 2009 ROV Jason II |