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There are no activity reports for Korovin.
Available Weekly Reports
There are no Weekly Reports available for Korovin.
Summary of eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|2006 Nov 25 ± 5 days||2007 Mar 3 (in or before)||Confirmed||1||Historical Observations|
|2005 Feb 23||2005 May 5 ± 4 days||Confirmed||1||Historical Observations|
|2004 Jul 4 (in or before)||Unknown||Confirmed||1||Historical Observations|
|2002 Jul (in or before)||Unknown||Confirmed||1||Historical Observations|
|1998 May 8 ± 1 days||1998 Jul 8 (?)||Confirmed||3||Historical Observations|
|[ 1996 Jun 29 ]||[ Unknown ]||Discredited|
|1987 Mar 4 (?)||1987 Mar 19 (?)||Confirmed||2||Historical Observations|
|[ 1986 May 23 ]||[ Unknown ]||Uncertain||1|
|[ 1976 ]||[ Unknown ]||Uncertain|
|1973 Aug 25 ± 2 days||Unknown||Confirmed||0||Historical Observations|
|[ 1953 ]||[ 1954 ]||Uncertain|
|[ 1951 ]||[ Unknown ]||Uncertain|
|[ 1844 ]||[ Unknown ]||Uncertain|
|[ 1829 ]||[ 1830 ]||Uncertain|
The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.
Coats R R, 1950. Volcanic activity in the Aleutian Arc. U S Geol Surv Bull, 974-B: 35-47.
IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..
Miller T P, McGimsey R G, Richter D H, Riehle J R, Nye C J, Yount M E, Dumoulin J A, 1998. Catalogue of the historically active volcanoes of Alaska. U S Geol Surv Open-File Rpt, 98-582: 1-104.
Motyka R J, Liss S A, Nye C J, Moorman M A, 1993. Geothermal resources of the Aleutian arc. Alaska Div Geol Geophys Surv, Prof Rpt, no 114, 17 p and 4 map sheets.
Myers J D, 1994. The Geology, Geochemistry and Petrology of the recent Magmatic Phase of the Central and Western Aleutian Arc. Unpublished manuscript, unpaginated.
Myers J D, March B D, Sinha A K, 1985. Strontium isotopic and selected trace element variations between two Aleutian volcanic centers (Adak and Atka): implications for the development of arc volcanic plumbing systems. Contr Mineral Petr, 91: 221-234.
Myers J D, Marsh B D, Frost C D, Linton J A, 2002. Petrologic constraints on the spatial distribution of crustal magma chambers, Atka volcanic center, central Aleutian arc. Contr Mineral Petr, 143: 567-586.
Smith R L, Shaw H R, Luedke R G, Russell S L, 1978. Comprehensive tables giving physical data and thermal energy estimates for young igneous systems of the United States. U S Geol Surv Open-File Rpt, 78-925: 1-25.
Wood C A, Kienle J (eds), 1990. Volcanoes of North America. Cambridge, England: Cambridge Univ Press, 354 p.
Korovin, the most frequently active volcano of the large volcanic complex at the NE tip of Atka Island, contains a 1533-m-high double summit with two craters located along a NW-SE line. The NW summit has a small crater, but the 1-km-wide crater of the SE cone has an unusual, open cylindrical vent of widely variable depth that sometimes contains a crater lake or a high magma column. A fresh-looking cinder cone lies on the flank of partially dissected Konia volcano, located on the SE flank of Korovin. The volcano is dominantly basaltic in composition, although some late-stage dacitic lava flows are present on both Korovin and Konia.