Report on Fukujin (United States) — October 1981
Scientific Event Alert Network Bulletin, vol. 6, no. 10 (October 1981)
Managing Editor: Lindsay McClelland.
Fukujin (United States) Water discoloration seen in January 1981, but then none through October
Please cite this report as:
Global Volcanism Program, 1981. Report on Fukujin (United States) (McClelland, L., ed.). Scientific Event Alert Network Bulletin, 6:10. Smithsonian Institution.
21.93°N, 143.47°E; summit elev. -217 m
All times are local (unless otherwise noted)
The Japan Maritime Safety Agency (JMSA) continues frequent monitoring flights over several known submarine volcanoes. [Discolored water was specifically noted, in an included table of observations, on 7 and 8 January, but not again through October 1981 (see table 1 below).]
Geologic Background. 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.