Report on Sinabung (Indonesia) — 26 March-1 April 2014

Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 26 March-1 April 2014
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2014. Report on Sinabung (Indonesia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 26 March-1 April 2014. Smithsonian Institution and US Geological Survey.

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Sinabung

Indonesia

3.17°N, 98.392°E; summit elev. 2460 m

All times are local (unless otherwise noted)


Based on webcam images, the Darwin VAAC reported that on 29 March an ash plume from Sinabung rose to an altitude of 4.3 km (14,000 ft) a.s.l. Meteorological cloud cover prevented satellite views. Gas emissions were noted on 30 March.

Geologic Background. Gunung Sinabung is a Pleistocene-to-Holocene stratovolcano with many lava flows on its flanks. The migration of summit vents along a N-S line gives the summit crater complex an elongated form. The youngest crater of this conical andesitic-to-dacitic edifice is at the southern end of the four overlapping summit craters. An unconfirmed eruption was noted in 1881, and solfataric activity was seen at the summit and upper flanks in 1912. No confirmed historical eruptions were recorded prior to explosive eruptions during August-September 2010 that produced ash plumes to 5 km above the summit.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)