Brown Bear Seamount |
inactive |
mid-ocean ridge |
JdF Ridge |
46.0333 |
-130.5500 |
1500 |
NotProvided |
Parece Vela Ridge, Philippine Sea |
inactive |
back-arc spreading center |
Parece Vela Basin |
16.0000 |
139.1667 |
5000 |
NotProvided |
W Eye of Mordor |
inactive |
mid-ocean ridge |
Galapagos Rift |
1.9707 |
-91.3900 |
1600 |
2005 towed video Medea observed inactive chimneys |
Tripartite Ridge, south of TR3 |
inactive |
back-arc spreading center |
North Fiji Basin |
-14.0745 |
175.4729 |
3000 |
NotProvided |
Mata Nima |
inactive |
arc volcano |
Lau Basin |
-14.9583 |
-173.7833 |
2670 |
2010 no plume detected |
MAR, 24 20'N |
inactive |
mid-ocean ridge |
N MAR |
24.3500 |
-46.2000 |
3200 |
NotProvided |
Mount Jourdanne |
inactive |
mid-ocean ridge |
SWIR |
-27.8500 |
63.9333 |
2940 |
1998 submersible Shinkai 6500 |
SEIR |
inactive |
mid-ocean ridge |
SEIR |
-28.0614 |
74.1733 |
5000 |
NotProvided |
MAR, 24 30'N |
inactive |
mid-ocean ridge |
N MAR |
24.5000 |
-46.1533 |
3900 |
1987 deposits only |
Gorda Ridge, 41 30'N |
inactive |
mid-ocean ridge |
Gorda Ridge |
41.5167 |
-127.4500 |
3350 |
1984 deposits only |
Shinkurose Bank |
inactive |
arc volcano |
Izu-Bonin Arc |
33.5667 |
140.1667 |
200 |
1992 or earlier submersible Shinkai 2000 |
Hawaiian Ridge |
inactive |
intra-plate volcano |
Central Pacific |
15.0000 |
-157.5000 |
5000 |
1987 or earlier |
Squid Forest |
inactive |
mid-ocean ridge |
Kolbeinsey Ridge |
68.0000 |
-17.5000 |
900 |
1999 ROV Aglantha |
EPR, 13 N, SE Seamount |
inactive |
mid-ocean ridge |
N EPR |
12.7000 |
-103.8600 |
2500 |
1981 towed camera, dredging, and plume did not confirm activity; 1982 and 1984 submersible Cyana did not confirm activity |
Pere Lachaise |
inactive |
back-arc spreading center |
North Fiji Basin |
-16.9667 |
173.9333 |
2000 |
1989 submersible Nautile did not find activity; 1991 submersible Shinkai 6500 did not find activity |
Conical Seamount |
inactive |
arc volcano |
Tabar-Feni Arc |
-3.2500 |
152.6600 |
1050 |
1998 TV grab survey determined inactive |
MAR, 25 50'N |
inactive |
mid-ocean ridge |
N MAR |
25.8083 |
-44.9833 |
3000 |
NotProvided |
Kurose Hole |
inactive |
arc volcano |
Izu-Bonin Arc |
33.4000 |
139.6800 |
760 |
1989 inactive; 2009 inactive |
DSDP Hole 504B |
inactive |
mid-ocean ridge |
Galapagos Rift |
1.2267 |
-83.7300 |
3500 |
NotProvided |
Philippine Ridge, West Philippine Basin |
inactive |
back-arc spreading center |
West Philippine Basin |
12.0000 |
131.4170 |
5800 |
NotProvided |
Galapagos Rift, 85 50'W |
inactive |
mid-ocean ridge |
Galapagos Rift |
0.7500 |
-85.8333 |
2600 |
1988 or earlier submersible observations |
MAR, 12 48'N |
inactive |
mid-ocean ridge |
N MAR |
12.8000 |
-44.7883 |
2400 |
NotProvided |
Hess Deep |
inactive |
mid-ocean ridge |
Galapagos Rift |
2.2500 |
-101.5000 |
5100 |
NotProvided |
Owen transform fault |
inactive |
mid-ocean ridge |
Carlsberg Ridge |
9.8333 |
57.9500 |
4500 |
NotProvided |
Ashadze-3 |
inactive |
mid-ocean ridge |
N MAR |
12.9860 |
-44.8610 |
4200 |
2005 plume and dredge only |
Explorer Deep |
inactive |
mid-ocean ridge |
Explorer Ridge |
50.1000 |
-129.7500 |
3200 |
1969, deposits only |
E Eye of Mordor |
inactive |
mid-ocean ridge |
Galapagos Rift |
1.9058 |
-91.2310 |
1600 |
2005 towed video Medea found inactive chimneys |
Nishi-Shichito Ridge |
inactive |
arc volcano |
Izu-Bonin Arc |
31.3667 |
138.7500 |
1600 |
NotProvided |
Kasuga 1 Seamount |
inactive |
arc volcano |
Mariana Arc |
21.7650 |
143.7100 |
600 |
2003 no plume detected |
EPR, 14 N seamount |
inactive |
mid-ocean ridge |
N EPR |
14.1500 |
-104.3667 |
2600 |
NotProvided |