Ribeira Quente |
active, confirmed |
mid-ocean ridge |
Terceira Rift |
37.7250 |
-25.3160 |
10 |
1986 or earlier, likely from shore or by SCUBA |
Northwest Eifuku |
active, confirmed |
arc volcano |
Mariana Arc |
21.4850 |
144.0430 |
1604 |
2004 ROV ROPOS; 2003 plume only |
EPR, 14 S |
active, confirmed |
mid-ocean ridge |
S EPR |
-13.9667 |
-112.4667 |
2635 |
1985/86 or 1989 TV grab (need to check references to confirm activity); 1993 plume only; 1994 submersible Shinkai 6500 |
Guaymas Basin, Southern Trough |
active, confirmed |
mid-ocean ridge |
Gulf of California |
27.0148 |
-111.4109 |
2000 |
1982 submersible Alvin; 1980 DeepTow CTD and dredging |
Alarcon Rise/Pescadero intersection |
active, inferred |
mid-ocean ridge |
Gulf of California |
23.6423 |
-108.3948 |
2384 |
2015 ROV Doc Ricketts did not confirm activity |
EPR, southern 16 N segment |
active, inferred |
mid-ocean ridge |
N EPR |
15.5000 |
-105.4000 |
2300 |
1997 plume only |
SEIR-WXC22 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
132.1000 |
2950 |
2015 plume only |
CIR, 8-17 S, Segment 5, 12.25 S |
active, inferred |
mid-ocean ridge |
CIR |
-12.2500 |
65.7000 |
4000 |
2010 plume only |
EPR, 28.4 S, Segment W4 |
active, inferred |
mid-ocean ridge |
S EPR |
-28.4170 |
-112.9640 |
2350 |
1998 plume only |
MAR, 8 10'S |
active, inferred |
mid-ocean ridge |
S MAR |
-8.1670 |
-13.4670 |
2000 |
2001 plume only |
CLSC, southern plumes on CL6 |
active, inferred |
back-arc spreading center |
Lau Basin |
-18.5000 |
-176.3833 |
2250 |
2009 plume only |
Tonga Arc, Volcano 14 |
active, inferred |
arc volcano |
Tonga Arc |
-23.5750 |
-176.7050 |
985 |
2003 plume and dredge only |
GEISEIR site 12, segment K4 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.6600 |
83.0366 |
2600 |
2010 plume only |
Gemini-Oscostar Volcanic Complex |
active, inferred |
arc volcano |
New Hebrides Arc |
-20.9830 |
170.2830 |
100 |
2001 deposits and plume; 2004 plume and sulfide samples |
EPR, 21 54'S |
active, inferred |
mid-ocean ridge |
S EPR |
-21.9000 |
-114.5000 |
2800 |
1987-1988 deposits only [need to check Fouquet et al. (1993) for confirmation] |
seamount, Tikopia area |
active, inferred |
arc volcano |
New Hebrides Arc |
-12.5433 |
167.7883 |
1425 |
1991 submersible Cyana |
Kebrit Deep |
active, inferred |
mid-ocean ridge |
Red Sea |
24.7233 |
36.2767 |
1590 |
1972 deposits only |
EPR, 5 S |
active, inferred |
mid-ocean ridge |
S EPR |
-5.0000 |
-106.4000 |
2650 |
1980's camera tows; 1993 and 1998 plume only; 1998 submersible Alvin did not confirm activity |
N-ELSC, plume 28 |
active, inferred |
back-arc spreading center |
Lau Basin |
-19.6500 |
-175.9890 |
2550 |
2004 plume only |
Douglas Strait caldera, Thule Island, South Sandwich Islands |
active, inferred |
arc volcano |
South Sandwich Arc |
-59.4167 |
-27.3333 |
625 |
2009 plume only; 2008 or earlier high resolution bathymetry only |
SWIR, D9B |
active, inferred |
mid-ocean ridge |
SWIR |
-52.7070 |
18.8170 |
3931 |
2000-2001 plume and dredge only |
C-ELSC, plume 13 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.4150 |
-176.3720 |
2100 |
2004 plume only |
MTJ, T08C05 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.5134 |
-174.7407 |
2100 |
2008 plume only |
GEISEIR site 23, segment M2 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.0272 |
89.2205 |
2400 |
2009 plume only |
VFR, ELSC7 |
active, inferred |
back-arc spreading center |
Lau Basin |
-22.8833 |
-176.7500 |
2050 |
2009 plume and dredge only |
EPR, 15 24'S |
active, inferred |
mid-ocean ridge |
S EPR |
-15.4000 |
-112.8350 |
2640 |
1993 plume only |
Haungaroa |
active, inferred |
arc volcano |
Kermadec Arc |
-32.6060 |
-179.6090 |
1165 |
2002 plume only |
TaiJi |
active, inferred |
mid-ocean ridge |
S MAR |
-13.5900 |
-14.5200 |
3180 |
2011 plume only |
Kuwae submarine caldera |
active, inferred |
arc volcano |
New Hebrides Arc |
-16.8300 |
168.5300 |
484 |
2001 plume and inconclusive grab samples |
Gakkel Ridge, Site 6 |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
86.5333 |
43.0000 |
3000 |
2001 plume only |