Report on Makian (Indonesia) — August 1988

Scientific Event Alert Network Bulletin, vol. 13, no. 8 (August 1988)
Managing Editor: Lindsay McClelland.

Makian (Indonesia) Weak steam emission and seismicity

Please cite this report as:

Global Volcanism Program, 1988. Report on Makian (Indonesia). In: McClelland, L (ed.), Scientific Event Alert Network Bulletin, 13:8. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.SEAN198808-268070.

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Makian

Indonesia

0.32°N, 127.4°E; summit elev. 1357 m

All times are local (unless otherwise noted)


Smaller explosions continued until early August, then activity steadily decreased. Weak emissions of white steam reached more than 100 m above the crater rim during August. About 17 volcanic and seven tectonic earthquakes were registered daily.

Geologic Background. Makian volcano forms a 10-km-wide island near the southern end of a chain of volcanic islands off the west coast of Halmahera and has been the source of infrequent, but violent eruptions that have devastated villages on the island. The large 1.5-km-wide summit crater, containing a small lake on the NE side, gives the peak a flat-topped profile. Two prominent valleys extend to the coast from the summit crater on the north and east sides. Four parasitic cones are found on the western flanks. Eruption have been recorded since about 1550; major eruptions in 1646, 1760-61, 1861-62, 1890, and 1988 caused extensive damage and many fatalities.

Information Contacts: VSI.