Woodlark Basin, Segment 3B |
active, inferred |
back-arc spreading center |
Woodlark Basin |
-9.8000 |
155.0667 |
3300 |
2009 plume only |
Philippine Ridge, West Philippine Basin |
inactive |
back-arc spreading center |
West Philippine Basin |
12.0000 |
131.4170 |
5800 |
NotProvided |
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 |
Three Sisters, Middle Sister |
active, inferred |
back-arc spreading center |
Bransfield Strait |
-62.6420 |
-58.9833 |
1040 |
1995 plume only; 1999 still had no visual confirmation |
Tow Cam |
active, confirmed |
back-arc spreading center |
Lau Basin |
-20.3169 |
-176.1367 |
2700 |
2004 AUV ABE; 2004 plume only on previous cruise |
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 |
13 N Ridge Site |
active, confirmed |
back-arc spreading center |
Mariana Trough |
13.0987 |
143.6886 |
3036 |
2000 deep-tow camera (later, same year - ROV Kaiko) |
Little Volcano |
active, inferred |
back-arc spreading center |
Bransfield Strait |
-62.7500 |
-59.2500 |
1500 |
1995 plume only |
VFR, plume 3 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.4000 |
-176.6790 |
1980 |
2004 plume only |
Woodlark Basin, Segment 5B |
active, inferred |
back-arc spreading center |
Woodlark Basin |
-9.2540 |
156.1910 |
3550 |
1986 plume only; 2000 plume only |
CLSC, southern plumes on CL6 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.5000 |
-176.3833 |
2250 |
2009 plume only |
N-ELSC, plume 27 |
active, inferred |
back-arc spreading center |
Lau Basin |
-19.7500 |
-176.0190 |
2570 |
2004 plume only; 2009 plume only |
Yokosuka |
active, confirmed |
back-arc spreading center |
Okinawa Trough |
25.2638 |
124.3733 |
2190 |
2016 ROV Kaiko; 2014 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 |
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) |
Tripartite Ridge, south of TR1 |
inactive |
back-arc spreading center |
North Fiji Basin |
-14.5000 |
177.0000 |
3000 |
NotProvided |
MTJ, T08C05 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.5134 |
-174.7407 |
2100 |
2008 plume only |
Kulo Lasi |
active, confirmed |
back-arc spreading center |
Lau Basin |
-14.9200 |
-177.2500 |
1478 |
2010 submersible Nautile |
West Fiji Ridge |
active, inferred |
back-arc spreading center |
North Fiji Basin |
-17.0000 |
176.0000 |
3000 |
1995 deep tow |
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) |
VFR, plume 4 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.3400 |
-176.6590 |
1700 |
2004 plume only |
MTJ, V12A-04 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9540 |
-174.7110 |
1330 |
2012 plume only |
Solwara 11 |
active, confirmed |
back-arc spreading center |
Manus Basin |
-3.1667 |
147.1917 |
1500 |
2008 commercial ROV; 2000 submersible Nautile did not confirm activity |
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 |
Misiteli |
active, confirmed |
back-arc spreading center |
Lau Basin |
-22.4700 |
-176.7030 |
2050 |
2008 commercial ROV; 2003 plume only |
Extensional Relay Zone A |
active, inferred |
back-arc spreading center |
North Fiji Basin |
-16.1667 |
177.4167 |
2335 |
1999 towed camera did not confirm activity |
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) |
N-ELSC, plume 28 |
active, inferred |
back-arc spreading center |
Lau Basin |
-19.6500 |
-175.9890 |
2550 |
2004 plume only |
Espalamaca |
active, confirmed |
intra-plate volcano |
|
38.5500 |
-28.6000 |
50 |
2010 or earlier likely SCUBA |
El Hierro, Tagoro |
active, confirmed |
intra-plate volcano |
|
27.6200 |
-17.9900 |
350 |
2016 submersible JAGO, 2017 ROV Liropus 2000, 2011 water column sampling |