The Fina Nagu Volcanic Complex. Volcanic calderas A through G are shown. Note the flanking regions of strong faulting to the southeast (Southeast Mariana Forearc Rift) and regions of abundant seafloor volcanism (Malaguana- Gadao spreading ridge and Toto volcano) to the northwest. Also shown are locations of Okeanos Explorer remotely operated vehicle Dives 5, 6, and 7 (asterisks). Fina Nagu volcanoes and calderas are oldest in the southwest and youngest in the northeast.

The Fina Nagu Volcanic Complex. Volcanic calderas A through G are shown. Note the flanking regions of strong faulting to the southeast (Southeast Mariana Forearc Rift) and regions of abundant seafloor volcanism (Malaguana- Gadao spreading ridge and Toto volcano) to the northwest. Also shown are locations of Okeanos Explorer remotely operated vehicle Dives 5, 6, and 7 (asterisks). Fina Nagu volcanoes and calderas are oldest in the southwest and youngest in the northeast. Image courtesy of the NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas.

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Related Links

April 28: Aging the Craters of the Fina Nagu Complex

2016 Deepwater Exploration of the Marianas

NOAA Ship Okeanos Explorer