Uploaded June 2026 | Updated September 2026, 2 weeks ago
In 2016, we explored the crater of Daikoku Seamount to investigate a possible 2014 eruption and assess its impacts on the local ecosystem. We observed 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. While piloting remotely operated vehicle Deep Discoverer around the crater rim, we spotted tubeworms, crabs, and a high density of flatfish specialized in living on the sulfur rich ground.
This footage was recorded during our 2016 Deepwater Exploration of the Marianas. Learn more about this dive on our website: archive.oceanexplorer.noaa.gov/okeanos/explorations/ex1605/dailyupdates/dailyupdates.html#cbpi=june26.html
In 2016, we explored the crater of Daikoku Seamount to investigate a possible 2014 eruption and assess its impacts on the local ecosystem. We observed 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. While piloting remotely operated vehicle Deep Discoverer around the crater rim, we spotted tubeworms, crabs, and a high density of flatfish specialized in living on the sulfur rich ground.
This footage was recorded during our 2016 Deepwater Exploration of the Marianas. Learn more about this dive on our website: archive.oceanexplorer.noaa.gov/okeanos/explorations/ex1605/dailyupdates/dailyupdates.html#cbpi=june26.html
