Report on Kawi-Butak (Indonesia) — March 2003

Bulletin of the Global Volcanism Network, vol. 28, no. 3 (March 2003)
Managing Editor: Edward Venzke.

Kawi-Butak (Indonesia) Fires detected on infrared satellite imagery, but no volcanic activity

Please cite this report as:

Global Volcanism Program, 2003. Report on Kawi-Butak (Indonesia). In: Venzke, E (ed.), Bulletin of the Global Volcanism Network, 28:3. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN200303-263281.

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Kawi-Butak

Indonesia

7.92°S, 112.45°E; summit elev. 2651 m

All times are local (unless otherwise noted)


MODIS thermal alerts at Kawi-Butak during 2001 and 2002 occurred only in August and October 2002 mostly to the SE of the summit. These almost certainly represent fires rather than volcanic events. The biggest detected alert occurred on 12 October and was characterized by seven alert-pixels with maximum alert ratio of -0.298. These alert pixels were in a group including the summit and the N flank, and are the best candidate for an eruption, though it is unlikely that an eruption of the kind required to trigger such an alert (a significant lava dome or flow) would have gone unreported. The Volcanological Survey of Indonesia confirmed that there was no eruption at Kawi-Butak on 12 October 2002 and that the thermal alert was indeed caused by a bush fire.

Geologic Background. The broad Kawi-Butak volcanic massif lies immediately east of Kelut volcano and south of Arjuno-Welirang volcano. The 2551-m-high Gunung Kawi was constructed to the NW of 2868-m-high Gunung Butak. No historical eruptions are known from either volcano, but both are primarily of Holocene age.

Information Contacts: Dali Ahmad, Volcanological Survey of Indonesia (VSI), Jalan Diponegoro No. 57, Bandung 40122, Indonesia (Email: dali@vsi.esdm.go.id, URL: http://www.vsi.esdm.go.id/); Diego Coppola and David A. Rothery, Department of Earth Sciences, The Open University, Milton Keynes, MK7 6AA, UK (Email: d.coppola@open.ac.uk, d.a.rothery@open.ac.uk). Thermal alerts courtesy of the HIGP MODIS Thermal Alerts Team (URL: http://modis.higp.hawaii.edu/).