Alinchak
Facts
- Type: tuya
- Seismically Monitored: No
- Color Code: UNASSIGNED
- Alert Level: UNASSIGNED
- Elevation: 405m (1328ft)
- Latitude: 57.87021
- Longitude: -155.41102
- Smithsonian VNum: 312132
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Nearby Towns:
- Kanatak 31 mi (49 km) SW
- Karluk 41 mi (66 km) SE
- Larsen Bay 58 mi (93 km) SE
- King Salmon 72 mi (116 km) NW
- Egegik 75 mi (121 km) NW
Distance from Anchorage: 301 mi (485 km)
Description
The informally named Alinchak volcano is a small monogenetic eruptive center with an associated lava flow extending 1 km north. It is located on the Alaska Peninsula about 30 km east of Becharof Lake and 7 km northwest of Alinchak Bay, at the headwaters of Big Alinchak Creek. Although Detterman et al. (1987) [1] suggested a Holocene age for the volcano based on aerial photographs, observations on the ground show that the volcano and lava flow have been glaciated. Moreover, it exhibits ice-contact features consistent with eruption beneath or through a glacier. These observations suggest that Alinchak is a Pleistocene, subglacial volcano.Name Origin
Alinchak volcano is an informal name based on the volcano's location near Alinchak Bay, at the headwaters of Big Alinchak Creek.
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Before an eruption
Ashfall & Preparedness Information
- Ashfall impacts & preparedness (US Geological Survey)
- Volcanic health hazards & impacts (International Volcanic Health Hazards Network)
- Ash Alert! Pamphlet (AK Division of Homeland Security & Emergency Management)
- Volcanic Ashfall (AK Department of Environmental Conservation, Division of Air Quality)
During and After an Eruption
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![Instrument data]()