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Report on Slamet (Indonesia) — November 1996

Bulletin of the Global Volcanism Network, vol. 21, no. 11 (November 1996)
Managing Editor: Richard Wunderman.

Slamet (Indonesia) A modest steam plume and seismic signals during September

Please cite this report as:

Global Volcanism Program, 1996. Report on Slamet (Indonesia). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 21:11. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN199611-263180.

Volcano Profile |  Complete Bulletin


Slamet

Indonesia

7.242°S, 109.208°E; summit elev. 3428 m

All times are local (unless otherwise noted)


During September steam rose 150 m over the summit and seismic signals continued.

Geologic Background. Slamet, Java's second highest volcano at 3428 m and one of its most active, has a cluster of about three dozen cinder cones on its lower SE-NE flanks and a single cinder cone on the western flank. It is composed of two overlapping edifices, an older basaltic-andesite to andesitic volcano on the west and a younger basaltic to basaltic-andesite one on the east. Gunung Malang II cinder cone on the upper E flank on the younger edifice fed a lava flow that extends 6 km E. Four craters occur at the summit of Gunung Slamet, with activity migrating to the SW over time. Historical eruptions, recorded since the 18th century, have originated from a 150-m-deep, 450-m-wide, steep-walled crater at the western part of the summit and have consisted of explosive eruptions generally lasting a few days to a few weeks.

Information Contacts: Wimpy S. Tjetjep, Volcanological Survey of Indonesia, Jalan Diponegoro No. 57, Bandung 40122, Indonesia.