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Shishaldin description and statistics

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Type:Stratovolcano
Most Recent Activity:February 17, 2004
Seismically Monitored: Yes
Current Color Code:GREEN
Distance: 674 mi (1084 km) from Anchorage
Elevation: 9373 ft (2857 m)
Latitude: 54.7554° N
Longitude:163.9711° W
Quadrangle: False Pass Unimak
CAVW Number:1101-36-
Sample Image: thumbnail

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Pronunciation:pronunciation Sound file
Synonyms:Agajedan
Sissagjuk
Shishaldin Volcano
Sisquk
Chichaldinskoi
Shushaldinskaya
Sisaguk
Fernandez, Volcano de
Smoking Moses
Moses
Caroli
Shishaldinskaia sopka
Agayedan
Sissagyuk
Description
From Miller and others (1998): "Shishaldin Volcano, located near the center of Unimak Island, is a spectacular symmetrical cone about 16 km in diameter at the base. The mountain, which rises to a summit 2857 m above sea level, is the highest peak in the Aleutian Islands and has a small summit crater from which a steady cloud of steam is emitted. The upper 2000 m is almost entirely covered by perennial snow and ice. It is flanked to the northwest by 24 monogenetic parasitic cones (Fournelle, 1988). The Shishaldin cone is less than 10,000 year old and is constructed on a glacially eroded remnant of an ancestral soma and shield (Fournelle, 1988), which in turn are underlain by volcaniclastic rocks of probable late Tertiary age (McLean and others, 1978). Fournelle (1988) suggests that the basement may consist, at least in part, of plutonic rocks."
URL: http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Shishaldin
Contact Information: AVO Web Team