Karangetang, Siau Island , Indonesia : The Alert Level remained at 3.

Karangetang, Siau Island , Indonesia : The Alert Level remained at 3.

Based on observations conducted at the Karangetang Volcano Observation Post in the village of Salili, PVMBG reported during 30 September-7 October that lava flows traveled as far as 200 m S. Incandescent avalanches from the fronts of lava flows traveled as far as 2 km E down the Batuawang and Kahetang drainages, and 1 km down the Batang (S) drainage.

Seismicity decreased, but continued to be dominated by signals characteristic of avalanches. Harmonic tremor was also detected.  (on a scale of 1-4); visitors and residents were warned not to approach Karangetang within a 4-km radius. Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that on 8 October an ash plume rose to an altitude of 2.7 km (7,000 ft) a.s.l. and drifted 65 km E.

October 15, 2015. Karangetang, Siau Island , Indonesia :

2.78°N, 125.4°E
Elevation 1784 m

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi , GVP .

Photo : VSI

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