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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 52.103°N
  • 177.602°E

  • 1220 m
    4002 ft

  • 311020
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Kiska.

 Available Weekly Reports

There are no Weekly Reports available for Kiska.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1990 Jun 1 1990 Jun 1 (?) Confirmed 2 Historical Observations Upper NW? flank
[ 1987 Apr 15 ] [ Unknown ] Uncertain    
1969 Sep 11 1969 Sep 16 Confirmed 2 Historical Observations
1964 Mar 18 Unknown Confirmed 0 Historical Observations
1962 Jan 24 Unknown Confirmed 3 Historical Observations North flank (Sirius Point)
[ 1927 ] [ Unknown ] Uncertain 2  
[ 1907 ] [ Unknown ] Uncertain 2  

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.

Coats R R, Nelson W H, Lewis R Q, Powers H A, 1961. Geologic reconnaissance of Kiska Island, Aleutian Islands, Alaska. U S Geol Surv Bull, 1028-R: 563-581.

Coombs M L, White S M, Scholl D W, 2007b. Massive edifice failure at Aleutian arc volcanoes. Earth Planet Sci Lett, 256: 403-418.

Henning R A, Rosenthal C H, Olds B, Reading E (eds), 1976. Alaska's volcanoes, northern link in the ring of fire. Alaska Geog, 4: 1-88.

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 Unpublished manuscript, unpaginated.

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.

Conical Kiska volcano is the westernmost historically active volcano of the 2500-km-long Aleutian arc. The volcano lies at the northern tip of the elongated Kiska Island, across a low isthmus containing East Kiska and West Kiska lakes. A 400-m-wide elliptical crater, breached to the north, caps the 1220-m-high stratovolcano. The volcano is surrounded on three sides by sea cliffs up to 450 m high and overlies an older volcanic center exposed to the south. A massive submarine debris-avalanche deposit extends 40 km to the NNW. The southern part of the NE-SW-trending island, the westernmost of the Rat Island group, has been glaciated, but all lava flows on Kiska volcano post-date the last major glaciation. Young, steep-sided blocky lava flows, primarily on the northern and SW flanks, have originated from vents at locations ranging from the summit to near sea level. A flank cinder cone and associated lava flows were erupted in 1962 at Sirius Point on the northern coast. The island contains one of the best harbors in the Aleutian Islands, but is uninhabited.