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Report on Ranakah (Indonesia) — August 1988

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

Ranakah (Indonesia) Lava production slows

Please cite this report as:

Global Volcanism Program, 1988. Report on Ranakah (Indonesia). In: McClelland, L. (ed.), Scientific Event Alert Network Bulletin, 13:8. Smithsonian Institution. https://doi.org/10.5479/si.GVP.SEAN198808-264071.

Volcano Profile |  Complete Bulletin


Ranakah

Indonesia

8.62°S, 120.52°E; summit elev. 2350 m

All times are local (unless otherwise noted)


Lava production had been gradually declining for several months and continued to decrease during August. Collapse of incandescent material was no longer visible, although collapse episodes were recorded seismically an average of six times daily, down from an average of 40-50/day in July. Tectonic earthquakes also averaged 6/day, but no volcanic seismicity was registered.

Geologic Background. A new lava dome, named Anak Ranakah (Child of Ranakah) was formed in 1987 in an area without previous historical eruptions at the base of the large older lava dome of Gunung Ranakah. An arcuate group of lava domes extending westward from Gunung Ranakah occurs on the outer flanks of the poorly known Poco Leok caldera on western Flores Island. Pocok Mandosawa lava dome, at 2350 m the highest point on the island of Flores, lies west of Anak Ranakah.

Information Contacts: VSI.