EPR, 17 56'S |
active, inferred |
mid-ocean ridge |
S EPR |
-17.9400 |
-113.3170 |
2620 |
1993 plume only |
MAR, 28 S |
active, inferred |
mid-ocean ridge |
S MAR |
-27.7936 |
-13.3730 |
3217 |
2013 plume only |
Three Sisters, Middle Sister |
active, inferred |
back-arc spreading center |
Bransfield Strait |
-62.6420 |
-58.9833 |
1040 |
1995 plume only; 1999 still had no visual confirmation |
Gorda Ridge, EP96A |
active, inferred |
mid-ocean ridge |
Gorda Ridge |
42.6790 |
-126.7820 |
3150 |
1996 camera/temperature tow followed by ROV did not confirm hydrothermal activity |
CIR, 8-17 S, Segment 2 |
active, inferred |
mid-ocean ridge |
CIR |
-9.9000 |
66.7500 |
4000 |
2010 plume only |
Wagner Basin |
active, inferred |
mid-ocean ridge |
Gulf of California |
31.0666 |
-114.0833 |
120 |
2007 echosounder and grab samples |
CIR, 8-17 S, Segment 6, 14.75 S |
active, inferred |
mid-ocean ridge |
CIR |
-14.7500 |
66.5000 |
3400 |
2010 plume only |
Solwara 19 |
active, inferred |
back-arc spreading center |
Manus Basin |
-3.6660 |
148.7640 |
1039 |
2009 commercial ROV Fugro FV300 (activity not confirmed) |
Knipovich Ridge, 77 40'N |
active, inferred |
mid-ocean ridge |
Knipovich Ridge |
77.6300 |
7.5800 |
3000 |
2000 plume only |
GEISEIR site 6, segment K2 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.6600 |
81.6617 |
2600 |
2007 plume only; 2010 plume only |
SEIR-WXC15 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
135.3000 |
3000 |
2015 plume only |
Daiichi-Amami knoll |
active, inferred |
arc volcano |
Ryukyu Arc |
28.4500 |
128.7500 |
350 |
2013 multibeam echo sounder on S/V Takuyo and AUV Gondo |
Okinawa Trough, Site ES2 |
active, inferred |
back-arc spreading center |
Okinawa Trough |
28.8137 |
128.1028 |
779 |
1992 dredge only |
Woodlark Basin, Segment 3B |
active, inferred |
back-arc spreading center |
Woodlark Basin |
-9.8000 |
155.0667 |
3300 |
2009 plume only |
EPR, 28.7 S, Segment W4 |
active, inferred |
mid-ocean ridge |
S EPR |
-28.7000 |
-112.9880 |
2350 |
1998 plume only |
FRSC, Central |
active, inferred |
back-arc spreading center |
Lau Basin |
-16.4917 |
-174.5417 |
2419 |
2004 plume only |
SW Syoyo |
active, inferred |
arc volcano |
Mariana Arc |
22.3870 |
142.7620 |
1750 |
2003 plume only |
C-ELSC, plume 15 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.2700 |
-176.3470 |
2230 |
2004 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 |
Chile Rise, Segment N9A |
active, inferred |
mid-ocean ridge |
Chile Rise |
-39.0500 |
-91.5833 |
3450 |
1998 plume only |
EPR, 14 18'S |
active, inferred |
mid-ocean ridge |
S EPR |
-14.3000 |
-112.6670 |
2630 |
1993 plume only |
GEISEIR site 10, segment K4 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.4770 |
82.7100 |
2500 |
1996 plume only; 2010 plume only |
Rakahore volcanic center |
active, inferred |
arc volcano |
Kermadec Arc |
-26.8100 |
-177.4000 |
1200 |
2004 plume and dredging NZAPLUME III expedition |
Lucky Strike segment, southern end |
active, inferred |
mid-ocean ridge |
N MAR |
37.0500 |
-32.4200 |
2600 |
1994 plume only |
EPR, 16 08'S |
active, inferred |
mid-ocean ridge |
S EPR |
-16.1300 |
-113.0000 |
2640 |
1993 plume only |
Tonga Arc, Volcano 4 |
active, inferred |
arc volcano |
Tonga Arc |
-22.0670 |
-176.2080 |
200 |
2003 plume and dredge only |
MTJ, T08C01 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9629 |
-174.7961 |
2400 |
2008 plume only |
Tonga Arc, Volcano A |
active, inferred |
arc volcano |
Tonga Arc |
-20.8600 |
-175.5500 |
700 |
2004 plume only |
Gakkel Ridge, Site 8 |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
86.5333 |
69.0000 |
3500 |
2001 plume only |
SWIR, D82 |
active, inferred |
mid-ocean ridge |
SWIR |
-52.2080 |
15.5830 |
4100 |
2000-2001 plume only |