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Location of Korovin volcano (map created by Janet Schaefer, courtesy of Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys)
Location of Korovin volcano (map created by Janet Schaefer, courtesy of Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys)

AP press photo (provided by Louis and Kathleen Nevzoroff via USGS) of Korovin eruption on 23 Feb., 2005.
Saturday, Feb 26, 2005

Added on 10 March:

... [more]
 

Korovin volcano

Stratovolcano 1533 m / 5030 ft
Andreanof Islands, Aleutian Islands, 52.38°N / -174.17°W
Current status: normal or dormant (1 out of 5) | Reports
Korovin volcano books
Typical eruption style: Explosive
Korovin volcano eruptions: 1829(?), 1844(?), 1907(?), 1951(?), 1953(?), 1973, 1976(?), 1986(?), 1987, 1998, 2005, 2006No recent earthquakes
TimeMag. / DepthDistanceLocation
Korovin is a 1533 m high stratovolcano in the central Aleutian Islands and one of the most active volcanoes in Alaska. On average, it has been active every 10-15 years, its last eruption being in Nov-Dec 2006 with ash emissions.

Background:

Geologically, Korovin belongs to the Atka volcanic complex on northern Atka Island. The Atka complex comprises a broad ancient central shield volcano, upon which a larger stratovolcano had been built destroyed by caldera formation about 300,000 to 500,000 years ago.
Korovin has two summit vents 0.6 km apart. The northwestern summit vent is a symmetric cone with a small crater. The southeastern summit vent is on the remnant of a cone with a steep-walled crater, about 1 km wide at the rim and at least several hundred meters deep with vertical crater walls. It contains a turquoise green lake with solfataric activity.


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