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Report on Ranakah (Indonesia) — March 1991


Bulletin of the Global Volcanism Network, vol. 16, no. 3 (March 1991)
Managing Editor: Lindsay McClelland.

Ranakah (Indonesia) Weak ash emissions

Please cite this report as:

Global Volcanism Program, 1991. Report on Ranakah (Indonesia) (McClelland, L., ed.). Bulletin of the Global Volcanism Network, 16:3. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN199103-264071



8.637°S, 120.5302°E; summit elev. 2288 m

All times are local (unless otherwise noted)

Periodic weak ash emissions (15-20 m high) continued in March from cracks in the lava dome, although no dome growth was noted. Averages of five tectonic earthquakes, two volcanic earthquakes, and one earthquake associated with dome collapse, were recorded daily.

Geological Summary. The Anak Ranakah (Child of Ranakah) lava dome was formed in 1987 in an area without previous recorded eruptions at the base of the large older lava dome of Gunung Ranakah. An arcuate group of lava domes extending about 12 km west from Gunung Ranakah to Poco Mandosawa occurs on the outer N flanks of the poorly known Poco Leok caldera on western Flores Island.

Information Contacts: W. Modjo, VSI; AP.