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 |
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 |
Snail |
active, confirmed |
back-arc spreading center |
Mariana Trough |
12.9533 |
143.6200 |
2880 |
2003 ROV Jason II; 2003 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, Central Trough |
active, confirmed |
back-arc spreading center |
Mariana Trough |
18.0467 |
144.7533 |
3676 |
1987 submersible Alvin |
Alice Springs Field |
active, confirmed |
back-arc spreading center |
Mariana Trough |
18.2103 |
144.7073 |
3640 |
1987 submersible Alvin; 1982 plume only |
Pika |
active, confirmed |
back-arc spreading center |
Mariana Trough |
12.9183 |
143.6483 |
2990 |
2003 submersible Shinkai 6500; 2003 plume only |
Mariana Trough, plume 2 |
active, inferred |
back-arc spreading center |
Mariana Trough |
12.7610 |
143.4730 |
2950 |
2003 plume only |
Mariana Trough, 14.5 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
14.4870 |
144.0940 |
4120 |
2015 plume only |
Mariana Trough, 16.5 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
16.4010 |
144.8700 |
3829 |
2015 plume only |
Mariana Trough, 18.2 N |
active, inferred |
back-arc spreading center |
Mariana Trough |
18.1080 |
144.7380 |
3916 |
2015 plume only |