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United States : Northern Mariana Islands and Guam

Below is the subset of Vent Fields that contain the taxonomy term (Activity, Tectonic Setting, Region, Ocean, National Jurisdiction, Temperature Category, or MGDS Feature ID) listed above.
You can sort the list below by clicking on a column header.

Vent Field Name ID Activity Tectonic Setting Regionsort descending Latitude Longitude Maximum or Single Reported Depth Year and How Discovered
Northwest Eifuku active, confirmed arc volcano Mariana Arc 21.4850 144.0430 1604 2004 ROV ROPOS; 2003 plume only
Esmeralda Bank active, confirmed arc volcano Mariana Arc 14.9667 145.2500 323 1990 towed video and TV-grab; 1978 hydrothermal deposits only
Daikoku volcano active, confirmed arc volcano Mariana Arc 21.3240 144.1940 450 2004 ROV ROPOS; 2003 plume only
Northwest Rota-1 volcano active, confirmed arc volcano Mariana Arc 14.6010 144.7750 599 2004 ROV ROPOS; 2003 plume only
Makhahnas active, inferred arc volcano Mariana Arc 20.5300 144.8833 420 2003 no plume detected
Forecast active, confirmed arc volcano Mariana Arc 13.4000 143.9166 1470 1992 submersible Shinkai 6500
Ahyi active, inferred arc volcano Mariana Arc 20.4200 145.0300 60 2003 plume only
Seamount X active, confirmed arc volcano Mariana Arc 13.2500 144.0200 1450 1994 or earlier submersible Shinkai 6500
Maug Caldera active, confirmed arc volcano Mariana Arc 20.0200 145.2200 145 2003 SCUBA shallow vents; 2004 ROV ROPOS deeper vents; 2003 plume only deeper vents
Chamorro volcano active, confirmed arc volcano Mariana Arc 20.8100 144.7050 896 2016 ROV Deep Discoverer; 2003 plume only
Zealandia active, inferred arc volcano Mariana Arc 16.8800 145.8500 144 2003 plume only; 2009 or earlier ROV did not confirm activity
TOTO Caldera active, confirmed arc volcano Mariana Arc 12.7167 143.5333 2960 2000 deep-tow camera (later, same year - ROV Kaiko); 1998 or earlier hydrothermal deposits dredged; 1998 plume only
Kasuga 3 Seamount active, confirmed arc volcano Mariana Arc 21.3833 143.6000 1140 1987 submersible Alvin
NE Anatahan submarine volcano active, inferred arc volcano Mariana Arc 16.3750 145.7250 460 2003 multibeam and sidescan sonar only
Fukujin volcano active, inferred arc volcano Mariana Arc 21.9300 143.4700 1100 1987 deposits only
Ruby active, confirmed arc volcano Mariana Arc 15.6200 145.5700 214 2006 ROV Jason II; 2003 plume only
Kasuga 1 Seamount inactive arc volcano Mariana Arc 21.7650 143.7100 600 2003 no plume detected
East Diamante volcano active, confirmed arc volcano Mariana Arc 15.9300 145.6700 457 2004 ROV ROPOS; 2003 plume only
Kasuga 2 Seamount active, confirmed arc volcano Mariana Arc 21.6000 143.6167 500 1987 submersible Alvin
West Rota volcano active, confirmed arc volcano Mariana Arc 14.3250 144.8330 1150 2005 ROV Hyper-Dolphin; 2003 plume only; 2004 ROV ROPOS did not observe venting
South Sarigan Seamount active, inferred arc volcano Mariana Arc 16.5800 145.7800 240 2013 ROV HyperDolphin (did not confirm activity)
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, 14.5 N active, inferred back-arc spreading center Mariana Trough 14.4870 144.0940 4120 2015 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
Snail active, confirmed back-arc spreading center Mariana Trough 12.9533 143.6200 2880 2003 ROV Jason II; 2003 plume only
Mariana Trough, 18.2 N active, inferred back-arc spreading center Mariana Trough 18.1080 144.7380 3916 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
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)
Pika active, confirmed back-arc spreading center Mariana Trough 12.9183 143.6483 2990 2003 submersible Shinkai 6500; 2003 plume only
Mariana Trough, Central Trough active, confirmed back-arc spreading center Mariana Trough 18.0467 144.7533 3676 1987 submersible Alvin
Mariana Trough, plume 2 active, inferred back-arc spreading center Mariana Trough 12.7610 143.4730 2950 2003 plume only
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