N-ELSC, plume 29 |
active, inferred |
back-arc spreading center |
Lau Basin |
-19.6000 |
-175.9750 |
2700 |
2004 plume only |
Solwara 17 |
active, confirmed |
back-arc spreading center |
Manus Basin |
-3.0380 |
147.5280 |
535 |
2009 commercial ROV Fugro FV300; 2008 plumes with some sites subsequently observed with ROV |
CLSC, CL_7 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.1333 |
-176.3667 |
2250 |
2009 plume only |
Yoron Hole |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
27.4916 |
127.5333 |
590 |
2010 ROV Hyperdolphin |
Higa |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
26.5550 |
126.2233 |
1485 |
2015 ROV Kaiko |
North Knoll, Iheya Ridge |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
27.7908 |
126.8966 |
1100 |
1995 deep tow survey |
MTJ, PAPATUA |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.3850 |
-174.6430 |
2170 |
1986 PAPATUA Expedition deposits only; 2008 plume only |
SPOT, Yonaguni Knoll IV |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
24.8490 |
122.7000 |
1385 |
2000 submersibles Shinkai 2000 and Shinkai 6500 |
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 |
western Manus Basin, Bismarck Sea |
inactive |
back-arc spreading center |
Manus Basin |
-3.0000 |
147.0000 |
1800 |
NotProvided |
Mariana Trough, 18.2 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
18.1080 |
144.7380 |
3916 |
2015 plume only |
Franklin Seamount |
active, confirmed |
back-arc spreading center |
Woodlark Basin |
-9.9083 |
151.8300 |
2366 |
1990 submersible Mir |
C-ELSC, plume 17 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.9900 |
-176.2530 |
2270 |
2004 plume only |
CLSC, CL_8 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.0500 |
-176.3333 |
2250 |
2009 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 |
ABE |
active, confirmed |
back-arc spreading center |
Lau Basin |
-20.7619 |
-176.1910 |
2220 |
2004 AUV ABE; 2004 plume only on previous cruise |
Temakons |
active, confirmed |
back-arc spreading center |
New Hebrides back-arc |
-17.5667 |
169.1000 |
1400 |
1994 towed camera with temperature |
DESMOS Cauldron |
active, confirmed |
back-arc spreading center |
Manus Basin |
-3.6958 |
151.8717 |
2000 |
1990 deep-sea monitoring system (DESMOS) video and still cameras |
Solwara 18 |
active, inferred |
back-arc spreading center |
Manus Basin |
-3.0760 |
147.2390 |
1308 |
2008 plumes with some sites subsequently observed with ROV; 2009 commercial ROV Fugro FV300 (activity not confirmed) |
C-ELSC, plume 19 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.8700 |
-176.2170 |
2230 |
2004 plume only |
Tangyin |
active, inferred |
back-arc spreading center |
Okinawa Trough |
25.0667 |
122.5667 |
1206 |
2014 likely by dredging or ROV during the HOBAB3 cruise on R/V Kexue |
NWLSC, Central Caldera |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.8000 |
-177.2666 |
2200 |
2008 plume and dredge only |
Kueishan Island |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
24.8333 |
121.9500 |
30 |
1999, likely by SCUBA |
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 |
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 |
Hook Ridge |
active, confirmed |
back-arc spreading center |
Bransfield Strait |
-62.1940 |
-57.2745 |
1080 |
1997 hot sediment; 1995 plume only; 1999 even hotter sediment |
Misiteli |
active, confirmed |
back-arc spreading center |
Lau Basin |
-22.4700 |
-176.7030 |
2050 |
2008 commercial ROV; 2003 plume only |
Whale Island |
active, confirmed |
back-arc spreading center |
Taupo Volcanic Zone |
-37.8600 |
176.9800 |
42 |
1990 or earlier, likely by SCUBA |
NELSC, T08C09 and T08C18 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.4030 |
-174.2630 |
1800 |
2008 plume only |
FRSC, Central |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.4917 |
-174.5417 |
2419 |
2004 plume only |