South Sarigan Seamount |
active, inferred |
arc volcano |
Mariana Arc |
16.5800 |
145.7800 |
240 |
2013 ROV HyperDolphin (did not confirm activity) |
CIR, 8-17 S, Segment 6, 14.3 S |
active, inferred |
mid-ocean ridge |
CIR |
-14.3000 |
66.1000 |
3500 |
2010 plume only |
Wagner Basin |
active, inferred |
mid-ocean ridge |
Gulf of California |
31.0666 |
-114.0833 |
120 |
2007 echosounder and grab samples |
GEISEIR site 36, segment O3 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.7009 |
98.0631 |
2700 |
2009 plume only |
Kebrit Deep |
active, inferred |
mid-ocean ridge |
Red Sea |
24.7233 |
36.2767 |
1590 |
1972 deposits only |
Myojinsho Caldera |
active, inferred |
arc volcano |
Izu-Bonin Arc |
31.8833 |
139.9500 |
1110 |
1988 deposits only; 2005 plume only |
EPR, 7 S |
active, inferred |
mid-ocean ridge |
S EPR |
-7.0000 |
-107.5500 |
2600 |
1985/86 or 1989 TV grab |
SEIR-WXC17 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.3000 |
133.8000 |
2780 |
2015 plume only |
EPR, mid 17 N segment |
active, inferred |
mid-ocean ridge |
N EPR |
17.0000 |
-105.3800 |
2750 |
1997 plume only |
GEISEIR site 6, segment K2 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.6600 |
81.6617 |
2600 |
2007 plume only; 2010 plume only |
EPR, 16 24'S |
active, inferred |
mid-ocean ridge |
S EPR |
-16.4000 |
-113.0500 |
2640 |
1993 plume only |
Woodlark Basin, Segment 3B |
active, inferred |
back-arc spreading center |
Woodlark Basin |
-9.8000 |
155.0667 |
3300 |
2009 plume only |
Ahyi |
active, inferred |
arc volcano |
Mariana Arc |
20.4200 |
145.0300 |
60 |
2003 plume only |
VFR, plume 12 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.7300 |
-176.4530 |
1910 |
2004 plume only |
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) |
GEISEIR site 26, segment M4 |
active, inferred |
mid-ocean ridge |
SEIR |
-43.6901 |
92.8451 |
2500 |
2009 plume only |
Central Andaman Trough, seamount crater, dredge 6 |
active, inferred |
back-arc spreading center |
Andaman Basin |
10.0000 |
94.0000 |
1640 |
1994 deposits only |
MAR, 31 S |
active, inferred |
mid-ocean ridge |
S MAR |
-31.7377 |
-13.3772 |
3050 |
2013 plume only |
Eye of Mordor Seamount |
active, inferred |
mid-ocean ridge |
Galapagos Rift |
1.9410 |
-91.3100 |
1555 |
2005 plume only |
GEISEIR site 19, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.8333 |
87.6266 |
2400 |
2009 GEISEIR 1 and 2010 GEISEIR 2 plume only |
MAR, 11 N |
active, inferred |
mid-ocean ridge |
N MAR |
11.0380 |
-43.6483 |
4010 |
1984 plume only; 2009 plume only |
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 |
MAR, 23 S |
active, inferred |
mid-ocean ridge |
S MAR |
-23.7428 |
-13.3936 |
2880 |
2013 plume only |
Tonga Arc, Volcano 4 |
active, inferred |
arc volcano |
Tonga Arc |
-22.0670 |
-176.2080 |
200 |
2003 plume and dredge only |
EPR, 15 24'S |
active, inferred |
mid-ocean ridge |
S EPR |
-15.4000 |
-112.8350 |
2640 |
1993 plume only |
S AMAR 2 |
active, inferred |
mid-ocean ridge |
N MAR |
35.9670 |
-34.1830 |
2240 |
1992 plume only; 1994 plume only |
GEISEIR site 37, segment O4 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.7483 |
98.1756 |
2800 |
2009 plume only |
Mata Fa |
active, inferred |
arc volcano |
Lau Basin |
-14.9833 |
-173.8000 |
2600 |
2010 plume only |
FRSC, T12A-01 |
active, inferred |
back-arc spreading center |
Lau Basin |
-17.7850 |
-174.5260 |
500 |
2012 plume only |
Gakkel Ridge, 7.5 E |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
85.0167 |
7.4500 |
3600 |
2001 plume only |