MAR, 25 S |
active, inferred |
mid-ocean ridge |
S MAR |
-25.3350 |
-13.6305 |
2570 |
2013 plume only |
GEISEIR site 8, segment K3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.8833 |
81.9816 |
2800 |
2010 plume only |
W Eye of Mordor |
inactive |
mid-ocean ridge |
Galapagos Rift |
1.9707 |
-91.3900 |
1600 |
2005 towed video Medea observed inactive chimneys |
E Eye of Mordor |
inactive |
mid-ocean ridge |
Galapagos Rift |
1.9058 |
-91.2310 |
1600 |
2005 towed video Medea found inactive chimneys |
S AMAR 1 |
active, inferred |
mid-ocean ridge |
N MAR |
36.0830 |
-34.0830 |
2630 |
1992 plume only; 1994 plume only |
MAR, 16 46'N |
inactive |
mid-ocean ridge |
N MAR |
16.7950 |
-46.3800 |
3300 |
NotProvided |
Bai Causeway |
active, inferred |
mid-ocean ridge |
SWIR |
-37.9000 |
48.8000 |
3000 |
2014 leg 2 or 3 of the 30th Chinese Cruise |
Magic Mountain, 3-km south |
active, inferred |
mid-ocean ridge |
Explorer Ridge |
49.7250 |
-130.2667 |
1850 |
2002 AUV ABE plume only |
EPR, 17 34'S |
active, confirmed |
mid-ocean ridge |
S EPR |
-17.5667 |
-113.2333 |
2600 |
1994 submersible Shinkai 6500; 1996 Argo II towed video |
EPR, 28.7 S, Segment W4 |
active, inferred |
mid-ocean ridge |
S EPR |
-28.7000 |
-112.9880 |
2350 |
1998 plume only |
GEISEIR site 31, segment O1 |
active, inferred |
mid-ocean ridge |
SEIR |
-46.8956 |
96.5709 |
2600 |
2009 plume only |
SWIR, 63.9 E |
active, inferred |
mid-ocean ridge |
SWIR |
-27.8510 |
63.9230 |
2759 |
2009 DY115-20 Leg 7 (need reference to confirm activity) |
GEISEIR site 20, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.9508 |
87.8008 |
2400 |
2010 plume only |
EPR, 1.4 S, off-axis |
active, confirmed |
mid-ocean ridge |
S EPR |
-1.3690 |
-102.4560 |
3000 |
2008 towed video |
MAR, 8 10'S |
active, inferred |
mid-ocean ridge |
S MAR |
-8.1670 |
-13.4670 |
2000 |
2001 plume only |
Gakkel Ridge, Site 6 |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
86.5333 |
43.0000 |
3000 |
2001 plume only |
SEIR-WXC22 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
132.1000 |
2950 |
2015 plume only |
Salty Dawg Field |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
47.9822 |
-129.0756 |
2200 |
1995 submersible Alvin, followed by ROV ROPOS |
Moytirra |
active, confirmed |
mid-ocean ridge |
N MAR |
45.4833 |
-27.8500 |
2900 |
2011 ROV Holland 1; 2008 plume only MAPRs, ROV Isis buoyant plume, but no visual confirmation |
Knipovich Ridge, 75 N |
active, inferred |
mid-ocean ridge |
Knipovich Ridge |
74.8000 |
8.4417 |
3185 |
2000 plume only |
EPR, 2 S |
active, confirmed |
mid-ocean ridge |
S EPR |
-2.2200 |
-102.6550 |
2900 |
2008 towed video and AUV ABE |
EPR, 7 25'S |
active, confirmed |
mid-ocean ridge |
S EPR |
-7.4167 |
-107.8000 |
2750 |
1985/86 or 1989 TV grab (need to check references to confirm activity); 1998 submersible Alvin |
CIR, 8-17 S, Segment 4, 10.9 S |
active, inferred |
mid-ocean ridge |
CIR |
-10.9000 |
66.7000 |
3500 |
2010 plume only |
SWIR, Plume 3, Segment 16 |
active, inferred |
mid-ocean ridge |
SWIR |
-30.8500 |
59.3830 |
3900 |
1997 plume only |
Pacific-Antarctic Ridge, 64 S segment |
active, inferred |
mid-ocean ridge |
Pacific-Antarctic Ridge |
-64.5000 |
-170.0000 |
2300 |
2009 plume only |
CIR, 8-17 S, Segment 6, 14.75 S |
active, inferred |
mid-ocean ridge |
CIR |
-14.7500 |
66.5000 |
3400 |
2010 plume only |
Medusa |
active, confirmed |
mid-ocean ridge |
N EPR |
9.1404 |
-104.2065 |
2580 |
2007 ROV Jason II; 1991 plume only |
GEISEIR site 7, segment K3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.8020 |
81.8380 |
2540 |
1996 plume only; 2010 plume only |
Axial Seamount, ASHES |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
45.9333 |
-130.0140 |
1540 |
1984 submersible Alvin |
Ribeira Quente |
active, confirmed |
mid-ocean ridge |
Terceira Rift |
37.7250 |
-25.3160 |
10 |
1986 or earlier, likely from shore or by SCUBA |