EPR 87D1 Seamount |
inactive |
mid-ocean ridge |
N EPR |
11.5333 |
-103.8600 |
2090 |
NotProvided |
EPR, 9 30'N |
active, confirmed |
mid-ocean ridge |
N EPR |
9.5167 |
-104.2414 |
2580 |
1989 Argo I towed video |
EPR, 11 42'N |
active, confirmed |
mid-ocean ridge |
N EPR |
11.7000 |
-103.8500 |
2580 |
1984 Angus camera (or 1985 Argo video) tow with temperature |
EPR, southern 16 N segment |
active, inferred |
mid-ocean ridge |
N EPR |
15.5000 |
-105.4000 |
2300 |
1997 plume only |
Mounds and Microbes |
active, confirmed |
mid-ocean ridge |
N EPR |
9.4500 |
-104.5383 |
2950 |
2002 submersible Alvin; 1994 submersible Alvin did not confirm activity |
Aegir |
active, confirmed |
mid-ocean ridge |
Mohns Ridge |
72.3440 |
1.5550 |
2600 |
2015 ROV Ægir 6000; 2013 plume only; 2015 AUV |
Mohns Ridge, 72.8 N |
active, inferred |
mid-ocean ridge |
Mohns Ridge |
72.8060 |
4.1650 |
2300 |
2013 plume only |
Troll Wall |
active, confirmed |
mid-ocean ridge |
Mohns Ridge |
71.2833 |
-5.7667 |
550 |
2005 ROV BIODEEP-05 cruise |
Loki's Castle |
active, confirmed |
mid-ocean ridge |
Mohns Ridge |
73.5500 |
8.1500 |
2400 |
2008 ROV Bathysaurus |
Soria Moria |
active, confirmed |
mid-ocean ridge |
Mohns Ridge |
71.2593 |
-5.8146 |
750 |
2005 ROV BIODEEP-05 cruise |
Mohns Ridge, 72 N |
active, inferred |
mid-ocean ridge |
Mohns Ridge |
72.0390 |
-0.2520 |
2500 |
1987 plume only; 2013 plume only |
Von Damm |
active, confirmed |
mid-ocean ridge |
Mid-Cayman Rise |
18.3777 |
-81.7972 |
2372 |
2010 AUV Autosub6000 and HyBIS TVG; 2009 plume only |
Walsh |
active, inferred |
mid-ocean ridge |
Mid-Cayman Rise |
17.8333 |
-81.8333 |
4000 |
2009 plume only; 2013 plume only |
Europa |
active, inferred |
mid-ocean ridge |
Mid-Cayman Rise |
18.3500 |
-81.8500 |
2400 |
2009 plume only, not observed on dive with hybrid ROV Nereus |
Beebe |
active, confirmed |
mid-ocean ridge |
Mid-Cayman Rise |
18.5466 |
-81.7182 |
4957 |
2010 AUV Autosub6000 and HyBIS TVG; 2009 plume only |
13 N Ridge Site |
active, confirmed |
back-arc spreading center |
Mariana Trough |
13.0987 |
143.6886 |
3036 |
2000 deep-tow camera (later, same year - ROV Kaiko) |
Mariana Trough, 14.5 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
14.4870 |
144.0940 |
4120 |
2015 plume only |
Alice Springs Field |
active, confirmed |
back-arc spreading center |
Mariana Trough |
18.2103 |
144.7073 |
3640 |
1987 submersible Alvin; 1982 plume only |
Mariana Trough, 15.5 N |
active, confirmed |
back-arc spreading center |
Mariana Trough |
15.4080 |
144.5090 |
4196 |
2015 plume only, 2016 ROV did not confirm |
Mariana Mounds |
active, confirmed |
back-arc spreading center |
Mariana Trough |
18.0333 |
144.2833 |
3600 |
1987 submersible Alvin |
Mariana Trough, 16.5 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
16.4010 |
144.8700 |
3829 |
2015 plume only |
Mariana Trough, plume 2 |
active, inferred |
back-arc spreading center |
Mariana Trough |
12.7610 |
143.4730 |
2950 |
2003 plume only |
Mariana Trough, 18.2 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
18.1080 |
144.7380 |
3916 |
2015 plume only |
Mariana Trough, Central Trough |
active, confirmed |
back-arc spreading center |
Mariana Trough |
18.0467 |
144.7533 |
3676 |
1987 submersible Alvin |
Snail |
active, confirmed |
back-arc spreading center |
Mariana Trough |
12.9533 |
143.6200 |
2880 |
2003 ROV Jason II; 2003 plume only |
Hafa Adai |
active, confirmed |
back-arc spreading center |
Mariana Trough |
16.9570 |
144.8680 |
3294 |
2016 ROV Deep Discoverer; 2015 AUV Sentry plume mapping |
Perseverance |
active, confirmed |
back-arc spreading center |
Mariana Trough |
15.4802 |
144.5077 |
3935 |
2016 ROV SuBastian; 2015 AUV Sentry plume mapping |
Pika |
active, confirmed |
back-arc spreading center |
Mariana Trough |
12.9183 |
143.6483 |
2990 |
2003 submersible Shinkai 6500; 2003 plume only |
W Syoyo |
active, inferred |
arc volcano |
Mariana Arc |
22.5080 |
142.5330 |
2150 |
2003 plume only |
Kasuga 3 Seamount |
active, confirmed |
arc volcano |
Mariana Arc |
21.3833 |
143.6000 |
1140 |
1987 submersible Alvin |