Tonga Arc, Volcano 4 |
active, inferred |
arc volcano |
Tonga Arc |
-22.0670 |
-176.2080 |
200 |
2003 plume and dredge only |
EPR, 11 45'N, OSC |
active, inferred |
mid-ocean ridge |
N EPR |
11.7775 |
-103.8300 |
2580 |
1984 Angus camera (or 1985 Argo video) tow with temperature; 1988 submersible Alvin dive #2004 (need reference to confirm activity) |
CIR, 19 29'S |
active, inferred |
mid-ocean ridge |
CIR |
-19.4830 |
65.7330 |
2700 |
1988 plume only; 2000 submersible Nautile did not confirm activity |
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) |
MTJ, T08C01 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9629 |
-174.7961 |
2400 |
2008 plume only |
Gakkel Ridge, 85 E |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
85.6500 |
84.8333 |
3900 |
2001 plume only; 2007 towed video did not confirm activity |
SWIR, Plume 5 |
active, inferred |
mid-ocean ridge |
SWIR |
-27.9170 |
64.4500 |
4000 |
1997 plume only |
Eva |
active, inferred |
arc volcano |
New Hebrides Arc |
-22.0000 |
170.7500 |
1600 |
2008 plume only |
Lobster |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.3330 |
-176.2830 |
1500 |
2008 plume and dredge only |
GEISEIR site 25, segment M4 |
active, inferred |
mid-ocean ridge |
SEIR |
-43.3115 |
92.1335 |
2700 |
2009 plume only |
Mata Taha |
active, inferred |
arc volcano |
Lau Basin |
-15.0416 |
-173.7833 |
2160 |
2010 plume only |
Ahyi |
active, inferred |
arc volcano |
Mariana Arc |
20.4200 |
145.0300 |
60 |
2003 plume only |
GEISEIR site 22, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.1130 |
88.0420 |
2400 |
1996 plume only; 2009 plume only |
Gorda Ridge, EP96B |
active, inferred |
mid-ocean ridge |
Gorda Ridge |
42.5500 |
-126.8333 |
3400 |
1984 deposits only; 1996 plume only |
MAR, segment south of St. Paul system |
active, inferred |
mid-ocean ridge |
N MAR |
0.5000 |
-25.0000 |
3500 |
2013 plume only |
EPR, 16 24'S |
active, inferred |
mid-ocean ridge |
S EPR |
-16.4000 |
-113.0500 |
2640 |
1993 plume only |
Walsh |
active, inferred |
mid-ocean ridge |
Mid-Cayman Rise |
17.8333 |
-81.8333 |
4000 |
2009 plume only; 2013 plume only |
VC7 |
active, inferred |
arc volcano |
Hellenic Arc, Aegean Sea |
36.5608 |
25.5250 |
320 |
2010 ROV Hercules |
MAR, 27 S |
active, inferred |
mid-ocean ridge |
S MAR |
-27.1476 |
-13.4753 |
3341 |
2013 plume only |
MAR, 14 54'N |
active, inferred |
mid-ocean ridge |
N MAR |
14.9200 |
-44.9000 |
3500 |
1988 or earlier seafloor photographs did not confirm hydrothermal activity |
NELSC, T08C09 and T08C18 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.4030 |
-174.2630 |
1800 |
2008 plume only |
GEISEIR site 36, segment O3 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.7009 |
98.0631 |
2700 |
2009 plume only |
GEISEIR site 8, segment K3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.8833 |
81.9816 |
2800 |
2010 plume only |
Tonga Arc, Volcano D |
active, inferred |
arc volcano |
Tonga Arc |
-19.4500 |
-174.9167 |
760 |
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 |
Krakatau |
active, inferred |
arc volcano |
Banda/Sunda Arc |
-6.1020 |
105.4230 |
250 |
2002 CTD/transmissometer and dredge only |
Knipovich Ridge, 75 N |
active, inferred |
mid-ocean ridge |
Knipovich Ridge |
74.8000 |
8.4417 |
3185 |
2000 plume only |
Puy des Folles |
active, inferred |
mid-ocean ridge |
N MAR |
20.5083 |
-45.6417 |
2000 |
1996 submersible Nautile observed only inactive vents |
CIR, 8-17 S, Segment 6, 14.3 S |
active, inferred |
mid-ocean ridge |
CIR |
-14.3000 |
66.1000 |
3500 |
2010 plume only |
MAR, 8 10'S |
active, inferred |
mid-ocean ridge |
S MAR |
-8.1670 |
-13.4670 |
2000 |
2001 plume only |