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Report on Babuyan Claro (Philippines) — March 1980

Babuyan Claro

Scientific Event Alert Network Bulletin, vol. 5, no. 3 (March 1980)
Managing Editor: David Squires.

Babuyan Claro (Philippines) Last month's "hot mudflows" not volcanic

Please cite this report as:

Global Volcanism Program, 1980. Report on Babuyan Claro (Philippines) (Squires, D., ed.). Scientific Event Alert Network Bulletin, 5:3. Smithsonian Institution. https://doi.org/10.5479/si.GVP.SEAN198003-274030

Babuyan Claro


19.524°N, 121.95°E; summit elev. 1064 m

All times are local (unless otherwise noted)

A COMVOL investigation has determined that press reports of hot mudflows at Babuyan Claro were incorrect. COMVOL found that a landslide, probably triggered by continuous rainfall, had occurred at 600 m above sea level on the NW flank.

Geological Summary. Multiple Quaternary volcanic centers occupy Babuyan de Claro Island north of Luzon. The largest edifice is Babuyan Claro (Mount Pangasun) at the center of the island, a stratovolcano with a 500-m-diameter summit crater and a smaller crater on the upper E flank. An older edifice lies just 1.5 km WSW, but the basaltic andesite Smith volcano (Mount Babuyan), about 4 km ENE of the summit, is the youngest volcanic feature on the island. Eruptions from Smith were recorded most recently during 1907-1924. Askedna Hot Spring is located at the southern base of Babuyan Claro.

Information Contacts: O. Peña, COMVOL, Quezon City.