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Report on Ranakah (Indonesia) — June 1988

Scientific Event Alert Network Bulletin, vol. 13, no. 6 (June 1988)
Managing Editor: Lindsay McClelland.

Ranakah (Indonesia) Lava flow and dome growth slow

Please cite this report as:

Global Volcanism Program, 1988. Report on Ranakah (Indonesia). In: McClelland, L. (ed.), Scientific Event Alert Network Bulletin, 13:6. Smithsonian Institution. https://doi.org/10.5479/si.GVP.SEAN198806-264071.

Volcano Profile |  Complete Bulletin


Ranakah

Indonesia

8.62°S, 120.52°E; summit elev. 2350 m

All times are local (unless otherwise noted)


Since the eruption began in December, lava dome height has increased 150 m, and the N lava flow volume has grown by 2.5-3.0 x 106 m3. The growth of the dome and flow slowed in June. Rockfall avalanches detected on the seismometer decreased . . . to an average of 40-50/day in June.

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.