Solwara 19 |
active, inferred |
back-arc spreading center |
Manus Basin |
-3.6660 |
148.7640 |
1039 |
2009 commercial ROV Fugro FV300 (activity not confirmed) |
MTJ, V12A-04 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9540 |
-174.7110 |
1330 |
2012 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 |
VFR, plume 3 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.4000 |
-176.6790 |
1980 |
2004 plume only |
C-ELSC, plume 15 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.2700 |
-176.3470 |
2230 |
2004 plume only |
Maka |
active, confirmed |
back-arc spreading center |
Lau Basin |
-15.4217 |
-174.2850 |
1660 |
2008 commercial ROV; 2004 plume only; 2006 plume and chimney samples |
Sumisu Rift |
active, inferred |
back-arc spreading center |
Izu-Bonin back-arc |
31.1000 |
139.8917 |
1600 |
1987 submersible Alvin inactive chimneys only |
Temakons |
active, confirmed |
back-arc spreading center |
New Hebrides back-arc |
-17.5667 |
169.1000 |
1400 |
1994 towed camera with temperature |
FRSC, RC 129 and CTD 24 plume sites |
active, inferred |
back-arc spreading center |
Lau Basin |
-17.0250 |
-174.5017 |
1750 |
2004 plume only; 2004 dredging |
Sakai |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
27.5481 |
126.9895 |
1600 |
1988 submersible Shinkai 2000; 1987 plume only |
NWLSC, Central Caldera |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.8000 |
-177.2666 |
2200 |
2008 plume and dredge only |
east of Central Spreading Ridge |
inactive |
back-arc spreading center |
North Fiji Basin |
-15.4510 |
174.6902 |
3000 |
NotProvided |
Niuatahi |
active, confirmed |
back-arc spreading center |
Lau Basin |
-15.3790 |
-174.0196 |
1635 |
2009 ROV Jason II; 2003 plume only; 2004 dredging (SS11/2004 cruise); 2005 plume only; 2008 commercial ROV (report does not confirm activity) |
Nifonea Ridge |
active, confirmed |
back-arc spreading center |
New Hebrides back-arc |
-18.1330 |
169.5170 |
1900 |
2001 towed video; 2013 ROV Kiel 6000 black smokers |
FRSC, 14b, 16.31 S |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.3110 |
-174.5550 |
2380 |
2008 plume only |
Mussel Valley |
active, confirmed |
back-arc spreading center |
North Fiji Basin |
-18.8167 |
173.4833 |
2700 |
1989 submersible Nautile; 1987 plume; 1988 towed camera did not confirm activity |
Tripartite Ridge, south of TR1 |
inactive |
back-arc spreading center |
North Fiji Basin |
-14.5000 |
177.0000 |
3000 |
NotProvided |
MTJ, T08C03, 15.72 S |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.7186 |
-174.8338 |
2400 |
2008 plume only |
White Lady |
active, confirmed |
back-arc spreading center |
North Fiji Basin |
-16.9833 |
173.9167 |
2000 |
1988 towed camera and plume; 1989 submersible Nautile |
VFR, plume 4 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.3400 |
-176.6590 |
1700 |
2004 plume only |
C-ELSC, plume 17 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.9900 |
-176.2530 |
2270 |
2004 plume only |
ESR, E2 |
active, confirmed |
back-arc spreading center |
East Scotia Ridge |
-56.0917 |
-30.3250 |
2641 |
2009 towed video; 1999 plume only; 2010 ROV Isis |
SuSu Knolls |
active, confirmed |
back-arc spreading center |
Manus Basin |
-3.8000 |
152.1000 |
1520 |
1996 towed camera/video; 1993 plume only |
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 |
Natsushima 84-1 Knoll |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
27.5750 |
127.1417 |
1600 |
1986 submersible Shinkai 2000 |
FRSC, South Central |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.6667 |
-174.5167 |
1820 |
2004 plume only; 2006 plume and chimney samples; 2009 camera tow and sampling (activity not confirmed) |
Izena Cauldron |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
27.2667 |
127.0833 |
1610 |
1988 submersible Shinkai 2000 |
Misiteli |
active, confirmed |
back-arc spreading center |
Lau Basin |
-22.4700 |
-176.7030 |
2050 |
2008 commercial ROV; 2003 plume only |
Kulo Lasi |
active, confirmed |
back-arc spreading center |
Lau Basin |
-14.9200 |
-177.2500 |
1478 |
2010 submersible Nautile |
FRSC, 14b, 16.11 S |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.1150 |
-174.5680 |
2250 |
2008 plume only |