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Report on Additional Reports (Unknown) — January 1977

Additional Reports

Natural Science Event Bulletin, vol. 2, no. 1 (January 1977)
Managing Editor: David Squires.

Additional Reports (Unknown) Japan: Possible submarine eruption in March 1974

Please cite this report as:

Global Volcanism Program, 1977. Report on Additional Reports (Unknown) (Squires, D., ed.). Natural Science Event Bulletin, 2:1. Smithsonian Institution. https://doi.org/10.5479/si.GVP.NSEB197701-600500

Additional Reports


Lat Unknown, Unknown; summit elev. m

All times are local (unless otherwise noted)

[A table of possible submarine eruptions based on aerial observations of water discoloration by the Japanese Maritime Safety Agency included an entry for 26.13°N, 144.48°E, in March 1974. There are no known Holocene volcanoes in this area.]

Geological Summary. Reports of floating pumice from an unknown source, hydroacoustic signals, or possible eruption plumes seen in satellite imagery.

Information Contacts: AFP; U.S. Defense Mapping Agency.