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Underwater Volcano

During Dive 9, we explored the crater of Daikoku Seamount, observing active venting and thick volcanic smoke, supporting the hypothesis that there had been recent volcanic activity in the area. Plumes of likely carbon dioxide gas and sulfur were emanating from cracks and orifices near the crater rim and along the lower wall of the crater. We saw tubeworms, crabs, and a high density of flat fish specialized in living on the sulfur rich ground.

Video courtesy of the NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas.

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Related Links

2016 Deepwater Exploration of the Marianas

NOAA Ship Okeanos Explorer