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Report on Fukujin (United States) — April 1980


Scientific Event Alert Network Bulletin, vol. 5, no. 4 (April 1980)
Managing Editor: David Squires.

Fukujin (United States) Water discoloration in late 1979 and early 1980

Please cite this report as:

Global Volcanism Program, 1980. Report on Fukujin (United States) (Squires, D., ed.). Scientific Event Alert Network Bulletin, 5:4. Smithsonian Institution. https://doi.org/10.5479/si.GVP.SEAN198004-284133


United States

21.93°N, 143.47°E; summit elev. -217 m

All times are local (unless otherwise noted)

The Japan Maritime Safety Agency continues frequent monitoring flights over three known submarine volcanoes. [Discolored water at Fukujin was seen during October 1979-March 1980 (see table 1 below).]

Geological Summary. One of the larger of the submarine volcanoes of the Marianas arc, Fukujin seamount has risen on occasion to just beneath the sea surface. Intermittent periods of water discoloration have been observed since the mid-20th century, and eruptions producing floating pumice were noted on several occasions.

Information Contacts: JMSA, Tokyo; JMA, Tokyo.