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Cross-section over the top of Daikoku seamount with the results from a CTD tow (black line), showing anomalies in turbidity (warm colors indicate high particle concentrations) in the eruption plume. Image courtesy of Submarine Ring of Fire 2014 - Ironman, NOAA/PMEL, NSF
Monday, Dec 22, 2014
A team of scientists from Oregon State University and NOAA found evidence that the submarine volcano, whose top is about 300 m below sea level, is currently erupting (or at least has been very recently). ... [more]
 

Daikoku volcano

submarine volcano -323 m / -1,060 ft
Volcano Islands, Japan, 21.32°N / 144.19°E
Current status: normal or dormant (1 out of 5) | Reports
Daikoku volcano books
Last update: 29 May 2016 (underwater eruption discovered on 14 Dec 2014)
Typical eruption style: unknown
Daikoku volcano eruptions: 2014 No recent earthquakes
TimeMag. / DepthDistanceLocation
Daikoku is a sumbarine volcano with a conical summit in the Japanese Volcano Islands chain. It sits on an elongated E-W-trending ridge SE of Eifuku submarine volcano and rises to within 323 m of the sea surface. It has a crater with a black pool of liquid sulfur discovered in 2006.
Daikoku submarine volcano is one of about a dozen submarine volcanoes displaying hydrothermal activity in the southern part of the Izu-Marianas chain.

Background:

A steep-walled, 50-m-wide cylindrical crater on the north flank, about 75 m below the summit, is at least 135 m deep and was observed to emit cloudy hydrothermal fluid. During a NOAA expedition in 2006, scientists observed a convecting, black pool of liquid sulfur with a partly solidified, undulating sulfur crust at a depth of 420 m below the summit of Daikoku. Gases, particulate with the appearance of smoke, and liquid sulfur were bubbling up from the back edge of the sulfur pool.
(Smithsonian / GVP volcano information)


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