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Report on Fukujin (United States) — July 1979


Scientific Event Alert Network Bulletin, vol. 4, no. 7 (July 1979)
Managing Editor: David Squires.

Fukujin (United States) Occasional water discoloration during 1978-79

Please cite this report as:

Global Volcanism Program, 1979. Report on Fukujin (United States) (Squires, D., ed.). Scientific Event Alert Network Bulletin, 4:7. Smithsonian Institution. https://doi.org/10.5479/si.GVP.SEAN197907-284133


United States

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

All times are local (unless otherwise noted)

Discolored water was occasionally visible over Fukujin, previously called Hukuzin-oka-no-ba, in 1977, 1978, and 1979. [Discolored water was specifically noted, in an included table of observations during January 1978-July 1979, on 10, 24, 25, and 26 January 1978, 24 March 1978, 25 August 1978, 26 April 1979, and 12 July 1979.]

Geological Summary. Fukujin seamount in the Mariana Volcanic Arc has risen on occasion to just beneath the ocean 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: JMA, Tokyo.