Logo link to homepage

Report on Ranakah (Indonesia) — February 1988


Scientific Event Alert Network Bulletin, vol. 13, no. 2 (February 1988)
Managing Editor: Lindsay McClelland.

Ranakah (Indonesia) Continued lava extrusion

Please cite this report as:

Global Volcanism Program, 1988. Report on Ranakah (Indonesia) (McClelland, L., ed.). Scientific Event Alert Network Bulletin, 13:2. Smithsonian Institution. https://doi.org/10.5479/si.GVP.SEAN198802-264071



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

All times are local (unless otherwise noted)

The eruption continued through February. No explosions have been reported since 9 January, and seismicity since then has been limited to rockfall events from the growing lava extrusion. Photographs taken in late February indicate that the summit of the steep-sided lava dome was considerably higher than it had been during field work by VSI personnel a month earlier. Lava flows extending N and E from the dome had advanced further, and a new flow had emerged from the dome and moved S. Eruption rates appeared to slow during February to an average of roughly 200,000 m3/day.

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: VSI.