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Latest news:

Saturday, Dec 31, 2011
Increased seismicity from Sorik Marapi was detected during 1-12 December and white plumes rose 40-50 m above the summit. CVGHM raised the Alert Level on 12 December from 1 to 2 (on a scale of 1-4) and back to 1 (normal) on 30 December 2011. [more]
Tuesday, Dec 13, 2011
A seismic swarm was detected at Sorik Marapi volcano in Sumatra and the alert level was raised to 2 (out of 4). 43 volcanic earthquakes were recorded on 12 December. ... [more]
 

Sorikmarapi volcano

Stratovolcano 2145 m (7,037 ft)
Sumatra, Indonesia, 0.68°N / 99.54°E
Current status: dormant (1 out of 5)
Sorikmarapi volcano books
Last update: 19 Feb 2012 (alert level back to normal)
Typical eruption style: Phreatic explosions. Strong hydrothermal activity. Strong fumaroles, crater lake.
Sorikmarapi volcano eruptions: 1829(?), 1866(?), 1879, 1888(?), 1892, 1893, 1917, 1970, 1986, 1996(?) No recent earthquakes
TimeMag. / DepthDistanceLocation
Sorikmarapi is a forested stratovolcano with a 600-m-wide summit crater containing a crater lake and substantial sulfur deposits.

Background:

A smaller parasitic crater (Danau Merah) on the upper SE flank also contains a crater lake; these two craters and a series of smaller explosion pits occur along a NW-SE line. Several solfatara fields are located on the eastern flank. Phreatic eruptions have occurred from summit and flank vents during the 19th and 20th centuries.

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Source: GVP, Smithsonian Institute


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