Mount Amukta

Mount Amukta
Mt. Amukta, June 1972
Highest point
Elevation	3,497 ft (1,066 m)
Coordinates	52°30′N 171°15′W / 52.500°N 171.250°W / 52.500; -171.250
Geography
Location	Amukta Island, Alaska, U.S.
Parent range	Aleutian Range
Topo map	USGS Amukta C-4
Geology
Mountain type	Stratovolcano
Volcanic arc	Aleutian Arc
Last eruption	March 1997

The undissected^[i] stratovolcano of Amukta volcano makes up most of nearly circular, 7.7-km-wide Amukta Island (Amuux̂tax̂^[1] in Aleut). It is the westernmost of the Islands of Four Mountains chain. The nearest islands to it are Yunaska and Seguam Island; it is separated from Seguam Island by Amukta Pass. The cone, about 5.8 km in basal diameter and topped by a 0.4 km wide summit crater, appears on synthetic-aperture radar imagery to be built upon a 300+ meter high, east-west trending arcuate ridge. Extensions of that ridge on the southwest and east sides of the island indicate an older caldera approximately 6 km in diameter and open to the sea on the south side. No hot springs or fumaroles have been reported from Amukta. Sekora (1973, p. 29) reports the presence of a cinder cone near the northeastern shore of the island.

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