| 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 |
| Geography | |
 | |
| Location | Amukta Island, Alaska, U.S. |
| Parent range | Aleutian Range |
| Topo map | USGS Amukta C-4 |
| Geology | |
| Mountain type | Stratovolcano |
| Volcanic arc/belt | 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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- ^ Bergsland, K. (1994). Aleut Dictionary. Fairbanks: Alaska Native Language Center.