VFR, unnamed |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.5150 |
-176.6500 |
1970 |
2004 plume only |
VFR, plume 4 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.3400 |
-176.6590 |
1700 |
2004 plume only |
VFR, plume 3 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.4000 |
-176.6790 |
1980 |
2004 plume only |
VFR, plume 12 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.7300 |
-176.4530 |
1910 |
2004 plume only |
VFR, ELSC7 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.8833 |
-176.7500 |
2050 |
2009 plume and dredge only |
Vema Fracture Zone |
active, inferred |
other |
N MAR |
10.7100 |
-42.6800 |
5180 |
2015 plume only |
VC7 |
active, inferred |
arc volcano |
Hellenic Arc, Aegean Sea |
36.5608 |
25.5250 |
320 |
2010 ROV Hercules |
Vailulu'u Seamount |
active, confirmed |
intra-plate volcano |
Central Pacific |
-14.2167 |
-169.0667 |
1000 |
2005 submersible Pisces V; 2000 plume only |
Vai Lili |
active, confirmed |
back-arc spreading center |
Lau Basin |
-22.2151 |
-176.6083 |
1764 |
1989 submersible Nautile |
Uka Pacha |
active, confirmed |
mid-ocean ridge |
Galapagos Rift |
0.7700 |
-88.3000 |
2100 |
2011 ROV Little Hercules |
Tutum Bay, Ambitle Island |
active, confirmed |
arc volcano |
Tabar-Feni Arc |
-4.0833 |
153.5500 |
10 |
1996 or earlier, likely by SCUBA |
Tu'i Malila |
active, confirmed |
back-arc spreading center |
Lau Basin |
-21.9876 |
-176.5678 |
1870 |
2005 ROV Jason II; 2004 plume only |
Troll Wall |
active, confirmed |
mid-ocean ridge |
Mohns Ridge |
71.2833 |
-5.7667 |
550 |
2005 ROV BIODEEP-05 cruise |
Tripartite Ridge, south of TR3 |
inactive |
back-arc spreading center |
North Fiji Basin |
-14.0745 |
175.4729 |
3000 |
NotProvided |
Tripartite Ridge, south of TR1 |
inactive |
back-arc spreading center |
North Fiji Basin |
-14.5000 |
177.0000 |
3000 |
NotProvided |
Tow Cam |
active, confirmed |
back-arc spreading center |
Lau Basin |
-20.3169 |
-176.1367 |
2700 |
2004 AUV ABE; 2004 plume only on previous cruise |
TOTO Caldera |
active, confirmed |
arc volcano |
Mariana Arc |
12.7167 |
143.5333 |
2960 |
2000 deep-tow camera (later, same year - ROV Kaiko); 1998 or earlier hydrothermal deposits dredged; 1998 plume only |
Tonga Arc, Volcano J1 |
active, inferred |
arc volcano |
Tonga Arc |
-17.2400 |
-173.9500 |
560 |
2004 plume only |
Tonga Arc, Volcano D |
active, inferred |
arc volcano |
Tonga Arc |
-19.4500 |
-174.9167 |
760 |
2004 plume only |
Tonga Arc, Volcano C |
active, inferred |
arc volcano |
Tonga Arc |
-20.1800 |
-175.2000 |
1050 |
2004 SS11/2004 cruise did not detect hydrothermal activity |
Tonga Arc, Volcano A |
active, inferred |
arc volcano |
Tonga Arc |
-20.8600 |
-175.5500 |
700 |
2004 plume only |
Tonga Arc, Volcano 8 |
active, inferred |
arc volcano |
Tonga Arc |
-22.8433 |
-176.4317 |
240 |
2003 plume and dredge only |
Tonga Arc, Volcano 4 |
active, inferred |
arc volcano |
Tonga Arc |
-22.0670 |
-176.2080 |
200 |
2003 plume and dredge only |
Tonga Arc, Volcano 19 |
active, confirmed |
arc volcano |
Tonga Arc |
-24.8000 |
-177.0167 |
970 |
2005 with submersibles PISCES IV and PISCES V and ROV RCV-150; 2003 plume and dredge only |
Tonga Arc, Volcano 18 |
active, confirmed |
arc volcano |
Tonga Arc |
-24.5850 |
-176.9170 |
1465 |
2011 ROV MAGNUM; 2003 plume and dredge only |
Tonga Arc, Volcano 16 |
active, inferred |
arc volcano |
Tonga Arc |
-24.1883 |
-176.8217 |
1400 |
2003 plume and dredge only |
Tonga Arc, Volcano 15 |
active, inferred |
arc volcano |
Tonga Arc |
-23.9000 |
-176.7800 |
1400 |
2003 plume only |
Tonga Arc, Volcano 14 |
active, inferred |
arc volcano |
Tonga Arc |
-23.5750 |
-176.7050 |
985 |
2003 plume and dredge only |
Tonga Arc, Volcano 1 |
active, confirmed |
arc volcano |
Tonga Arc |
-21.1500 |
-175.7500 |
210 |
2005 with submersibles PISCES IV and PISCES V and ROV RCV-150; 2003 plume and dredge only |
Tiancheng |
active, confirmed |
mid-ocean ridge |
SWIR |
-27.9670 |
63.5500 |
3600 |
2014 HOV Jiaolong; 1997 plume only; 2009 DY115-20 Leg 7 plume and deposits; |