Report on Sangeang Api (Indonesia) — February 1988
Scientific Event Alert Network Bulletin, vol. 13, no. 2 (February 1988)
Managing Editor: Lindsay McClelland.
Sangeang Api (Indonesia) Explosions and earthquakes end
Please cite this report as:
Global Volcanism Program, 1988. Report on Sangeang Api (Indonesia). In: McClelland, L. (ed.), Scientific Event Alert Network Bulletin, 13:2. Smithsonian Institution. https://doi.org/10.5479/si.GVP.SEAN198802-264050.
8.2°S, 119.07°E; summit elev. 1949 m
All times are local (unless otherwise noted)
The number of explosions . . . declined steadily from 50-70/day in early 1987 to ~15/day at the end of the year. By February, explosions had stopped, although fuming continued from the summit crater, producing a whitish plume. No earthquakes were reported during February.
Geologic Background. Sangeang Api volcano, one of the most active in the Lesser Sunda Islands, forms a small 13-km-wide island off the NE coast of Sumbawa Island. Two large trachybasaltic-to-tranchyandesitic volcanic cones, 1949-m-high Doro Api and 1795-m-high Doro Mantoi, were constructed in the center and on the eastern rim, respectively, of an older, largely obscured caldera. Flank vents occur on the south side of Doro Mantoi and near the northern coast. Intermittent historical eruptions have been recorded since 1512, most of them during in the 20th century.
Information Contacts: VSI.