Red Sea Rift, 18 N |
active, inferred |
mid-ocean ridge |
Red Sea |
17.9667 |
40.0667 |
1500 |
1980 submersible Pisces XI (deposits only) |
W Los Huellos Caldera |
active, inferred |
mid-ocean ridge |
Galapagos Rift |
1.0000 |
-90.6000 |
1600 |
2005 plume only |
near Jade Emperor Mountain, on-axis |
active, inferred |
mid-ocean ridge |
SWIR |
-37.8666 |
49.2166 |
3000 |
2010 plume only |
Tahi Moana 7 |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.3300 |
-174.2500 |
1940 |
2004 plume only; 2008 plume only; 2009 video camera tow (activity not confirmed) |
MAR, 31 S |
active, inferred |
mid-ocean ridge |
S MAR |
-31.7377 |
-13.3772 |
3050 |
2013 plume only |
SWIR, Plume 1, Segment 17 |
active, inferred |
mid-ocean ridge |
SWIR |
-31.1830 |
58.5000 |
3600 |
1997 plume only |
Vema Fracture Zone |
active, inferred |
other |
N MAR |
10.7100 |
-42.6800 |
5180 |
2015 plume only |
Carlsberg Ridge, CR2003 |
active, inferred |
mid-ocean ridge |
Carlsberg Ridge |
6.0500 |
60.9500 |
3500 |
2003 plume only; 2007 plume only |
Extensional Relay Zone A |
active, inferred |
back-arc spreading center |
North Fiji Basin |
-16.1667 |
177.4167 |
2335 |
1999 towed camera did not confirm activity |
C-ELSC, plume 15 |
active, inferred |
back-arc spreading center |
Lau Basin |
-21.2700 |
-176.3470 |
2230 |
2004 plume only |
S AMAR 1 |
active, inferred |
mid-ocean ridge |
N MAR |
36.0830 |
-34.0830 |
2630 |
1992 plume only; 1994 plume only |
NWLSC, Southern Caldera |
active, inferred |
back-arc spreading center |
Lau Basin |
-15.9000 |
-177.4166 |
2160 |
2008 plume only |
NE Anatahan submarine volcano |
active, inferred |
arc volcano |
Mariana Arc |
16.3750 |
145.7250 |
460 |
2003 multibeam and sidescan sonar only |
Mata Ono |
active, inferred |
arc volcano |
Lau Basin |
-14.9333 |
-173.7916 |
2600 |
2010 plume only |
MAR, 19 S |
active, inferred |
mid-ocean ridge |
S MAR |
-19.3301 |
-11.9421 |
2707 |
2013 plume only |
VC7 |
active, inferred |
arc volcano |
Hellenic Arc, Aegean Sea |
36.5608 |
25.5250 |
320 |
2010 ROV Hercules |
N-ELSC, plume 22 |
active, inferred |
back-arc spreading center |
Lau Basin |
-20.4000 |
-176.1580 |
2700 |
2004 plume only |
FRSC, T12A-01 |
active, inferred |
back-arc spreading center |
Lau Basin |
-17.7850 |
-174.5260 |
500 |
2012 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 |
CIR, 8-17 S, Segment 4, 11.2 S |
active, inferred |
mid-ocean ridge |
CIR |
-11.2000 |
66.5000 |
3800 |
2010 plume only |
SWIR, 53.2 E |
active, inferred |
mid-ocean ridge |
SWIR |
-36.1010 |
53.2550 |
2218 |
2008 plume and dredge only |
Carlsberg Ridge, 63 50'E |
active, inferred |
mid-ocean ridge |
Carlsberg Ridge |
3.6916 |
63.8333 |
3500 |
2009 plume only; 2012 plume and deposits |
GEISEIR site 21, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.0050 |
87.8808 |
2400 |
2010 plume only |
GEISEIR site 11, segment K4 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.5375 |
82.8266 |
2600 |
2010 plume only |
SEIR-WXC07 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.2500 |
138.3000 |
2420 |
2015 plume only |
EPR, 28.4 S, Segment W4 |
active, inferred |
mid-ocean ridge |
S EPR |
-28.4170 |
-112.9640 |
2350 |
1998 plume only |
San Cristobal arc, Target N |
active, inferred |
arc volcano |
Solomons Arc |
-10.5000 |
164.0000 |
2000 |
2002 dredge only |
Kuiwai |
active, inferred |
arc volcano |
Kermadec Arc |
-33.1560 |
-179.9560 |
630 |
2002 plume only |
Pacific-Antarctic Ridge, 64 S segment |
active, inferred |
mid-ocean ridge |
Pacific-Antarctic Ridge |
-64.5000 |
-170.0000 |
2300 |
2009 plume only |
Fukujin volcano |
active, inferred |
arc volcano |
Mariana Arc |
21.9300 |
143.4700 |
1100 |
1987 deposits only |