Douglas Strait caldera, Thule Island, South Sandwich Islands |
active, inferred |
arc volcano |
South Sandwich Arc |
-59.4167 |
-27.3333 |
625 |
2009 plume only; 2008 or earlier high resolution bathymetry only |
Adventure Caldera |
active, confirmed |
arc volcano |
South Sandwich Arc |
-59.7210 |
-27.8571 |
520 |
2011 SHRIMP towed camera system; 2010 high resolution bathymetry only |
Grover Seamount |
active, confirmed |
arc volcano |
Solomons Arc |
-10.4667 |
164.2500 |
600 |
2002 towed video |
San Cristobal arc, Target M |
active, inferred |
arc volcano |
Solomons Arc |
-10.4000 |
164.7500 |
2000 |
2002 plume and dredge only |
Kana Keoki seamount |
active, inferred |
arc volcano |
Solomons Arc |
-8.7500 |
157.0300 |
650 |
1993 observations did not confirm activity |
San Cristobal arc, Target N |
active, inferred |
arc volcano |
Solomons Arc |
-10.5000 |
164.0000 |
2000 |
2002 dredge only |
Kavachi submarine volcano |
active, inferred |
arc volcano |
Solomons Arc |
-8.9833 |
157.9667 |
500 |
2000 plume only |
GEISEIR site 23, segment M2 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.0272 |
89.2205 |
2400 |
2009 plume only |
GEISEIR site 12, segment K4 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.6600 |
83.0366 |
2600 |
2010 plume only |
GEISEIR site 34, segment O3 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.4145 |
97.4373 |
2700 |
2009 plume only |
SEIR-WXC27 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.4000 |
134.3000 |
2760 |
2015 plume only |
GEISEIR site 24, segment M3 |
active, inferred |
mid-ocean ridge |
SEIR |
-43.0369 |
91.0357 |
2400 |
2009 plume only |
GEISEIR site 13, segment L1 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.0125 |
86.0608 |
2800 |
2010 plume only |
SEIR |
inactive |
mid-ocean ridge |
SEIR |
-28.0614 |
74.1733 |
5000 |
NotProvided |
GEISEIR site 35, segment O3 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.6179 |
97.8678 |
2600 |
2009 plume only |
SEIR-WXC15 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
135.3000 |
3000 |
2015 plume only |
GEISEIR site 25, segment M4 |
active, inferred |
mid-ocean ridge |
SEIR |
-43.3115 |
92.1335 |
2700 |
2009 plume only |
GEISEIR site 14, segment L1 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.0716 |
86.1550 |
2700 |
2010 plume only |
GEISEIR site 22, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.1130 |
88.0420 |
2400 |
1996 plume only; 2009 plume only |
GEISEIR site 36, segment O3 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.7009 |
98.0631 |
2700 |
2009 plume only |
SEIR-WXC12 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
136.2500 |
2780 |
2015 plume only |
GEISEIR site 26, segment M4 |
active, inferred |
mid-ocean ridge |
SEIR |
-43.6901 |
92.8451 |
2500 |
2009 plume only |
GEISEIR site 15, segment L1 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.2230 |
86.3892 |
2500 |
2010 plume only |
GEISEIR site 10, segment K4 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.4770 |
82.7100 |
2500 |
1996 plume only; 2010 plume only |
GEISEIR site 37, segment O4 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.7483 |
98.1756 |
2800 |
2009 plume only |
SEIR-WXC02 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
137.0000 |
2620 |
2015 plume only |
GEISEIR site 27, segment M5 |
active, inferred |
mid-ocean ridge |
SEIR |
-43.9805 |
93.4571 |
2700 |
2009 plume only |
GEISEIR site 16, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.5883 |
87.2615 |
2500 |
2010 plume only |
GEISEIR site 7, segment K3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.8020 |
81.8380 |
2540 |
1996 plume only; 2010 plume only |
GEISEIR site 38, segment O4 |
active, inferred |
mid-ocean ridge |
SEIR |
-48.0048 |
98.8232 |
2800 |
2009 plume only |