N-ELSC, plume 25 |
active, inferred |
back-arc spreading center |
Lau Basin |
-19.8900 |
-176.0640 |
2680 |
2004 plume only |
W Los Huellos Caldera |
active, inferred |
mid-ocean ridge |
Galapagos Rift |
1.0000 |
-90.6000 |
1600 |
2005 plume only |
Vityaz megamullion |
active, inferred |
mid-ocean ridge |
CIR |
-5.4000 |
68.5833 |
3500 |
1979 plume and deposits only |
GEISEIR site 13, segment L1 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.0125 |
86.0608 |
2800 |
2010 plume only |
MAR, 8 10'S |
active, inferred |
mid-ocean ridge |
S MAR |
-8.1670 |
-13.4670 |
2000 |
2001 plume only |
MTJ, V12A-04 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9540 |
-174.7110 |
1330 |
2012 plume only |
CLSC, northern plumes on CL6 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.1333 |
-176.2833 |
2250 |
2009 plume only |
Mohns Ridge, 72.8 N |
active, inferred |
mid-ocean ridge |
Mohns Ridge |
72.8060 |
4.1650 |
2300 |
2013 plume only |
C-ELSC, unnamed |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.1070 |
-176.2920 |
2300 |
2004 (assume submersible Shinkai 6500); 2004 plume only on previous cruise |
EPR, 17 S |
active, inferred |
mid-ocean ridge |
S EPR |
-17.0000 |
-113.1170 |
2680 |
1993 plume only |
CIR, 8-17 S, Segment 7 |
active, inferred |
mid-ocean ridge |
CIR |
-17.0000 |
66.8000 |
3100 |
2010 plume only |
Tonga Arc, Volcano 14 |
active, inferred |
arc volcano |
Tonga Arc |
-23.5750 |
-176.7050 |
985 |
2003 plume and dredge only |
Chile Triple Junction |
active, inferred |
mid-ocean ridge |
Chile Rise |
-46.3000 |
-75.8000 |
3000 |
2010 plume only |
Gorda Ridge, EP96B |
active, inferred |
mid-ocean ridge |
Gorda Ridge |
42.5500 |
-126.8333 |
3400 |
1984 deposits only; 1996 plume only |
Pacific-Antarctic Ridge, 60 S segment |
active, inferred |
mid-ocean ridge |
Pacific-Antarctic Ridge |
-60.0000 |
-152.0000 |
2300 |
2009 plume only |
GEISEIR site 35, segment O3 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.6179 |
97.8678 |
2600 |
2009 plume only |
Nereus Deep |
active, inferred |
mid-ocean ridge |
Red Sea |
23.1670 |
37.2830 |
2400 |
1972 deposits only |
SEIR-WXC02 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
137.0000 |
2620 |
2015 plume only |
Knipovich Ridge, 76 48'N |
active, inferred |
mid-ocean ridge |
Knipovich Ridge |
76.7833 |
8.0000 |
3500 |
1996 temperature anomaly and towed video did not confirm activity |
C-ELSC, plume 13 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.4150 |
-176.3720 |
2100 |
2004 plume only |
Tonga Arc, Volcano C |
active, inferred |
arc volcano |
Tonga Arc |
-20.1800 |
-175.2000 |
1050 |
2004 SS11/2004 cruise did not detect hydrothermal activity |
EPR, 21 40'S |
active, inferred |
mid-ocean ridge |
S EPR |
-21.6340 |
-114.3010 |
2730 |
1987-1988 deposits only |
Red Sea Rift, 18 N |
active, inferred |
mid-ocean ridge |
Red Sea |
17.9667 |
40.0667 |
1500 |
1980 submersible Pisces XI (deposits only) |
EPR, Manzanillo Spreading Segment |
active, inferred |
mid-ocean ridge |
N EPR |
18.2500 |
-106.3000 |
2600 |
1997 plume only |
MAR, 4 02'S |
active, inferred |
mid-ocean ridge |
S MAR |
-4.0333 |
-12.2500 |
4000 |
2005 plume only |
Gakkel Ridge, Site 3 |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
84.4333 |
2.1333 |
4300 |
2001 plume only |
E Los Huellos Caldera |
active, inferred |
mid-ocean ridge |
Galapagos Rift |
0.9500 |
-90.5300 |
1600 |
2005 plume only; 2005 towed video Medea did not confirm activity |
Kuiwai |
active, inferred |
arc volcano |
Kermadec Arc |
-33.1560 |
-179.9560 |
630 |
2002 plume only |
CIR, 8-17 S, Segment 4, 11.3 S |
active, inferred |
mid-ocean ridge |
CIR |
-11.3000 |
66.4000 |
3500 |
2010 plume only |
Mariana Trough, 14.5 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
14.4870 |
144.0940 |
4120 |
2015 plume only |