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Volcano Watch: 24 February 2009

Posted by feww on February 26, 2009

Volcanic Activity Report: 18 February – 24 February 2009

Source: SI / USGS Weekly Volcanic Activity Report

New activity/unrest:

Volcano of the Week: Sibayak

Country:   Indonesia
Region:    Sumatra (Indonesia)
Volcano Type:    Stratovolcanoes
Last Known Eruption:     1881
Summit Elevation:     2212 m     7,257 feet
Latitude:     3.23°N     3°14’0″N
Longitude:     98.52°E     98°31’0″E


Sibayak volcano in NE Sumatra and its twin volcano Mt. Pinto are constructed within a compound caldera. The slightly higher Mt. Pinto partially overtops the 900-m-wide crater of Sibayak on the north. The summit contains a lava dome and an area of hydrothermal alteration visible in this photo. An ash eruption from Sibayak was recorded in 1881, and area residents note legends of eruptions. Photo by Tom Casadevall, 1987 (U.S. Geological Survey). Caption: GVP


Sibayak crater lake.
Credit: browngroove via flickr. See source for copyright information.

Ongoing Activity:

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