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Soputan volcano, N-Sulawesi (Indonesia): small eruption

Thursday Dec 29, 2005 17:43 PM | Age: 6 yrs

Soputan volcano had a small phreatic eruption on 26 December around 12h30 local time, probably caused by heavy rainfall onto the hot lava dome. On 27 December at 0400, a Strombolian eruption began that lasted ~50 minutes. Incandescent volcanic material was ejected ~35 m, and avalanches of volcanic material traveled as far as 750 m E. Around 06h40 the avalanches became larger, as pyroclastic avalanches occurred from the edge of the lava. The avalanches extended 200 m E, and booming noises were heard as far as 5 km from the summit. The Darwin VAAC reported that an ash plume reached a height of ~5.8 km (~19,000 ft) a.s.l. and drifted SE.


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Source: GVP/USGS Weekly Volcanic Activity Report 21-27 December 2005

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