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 31.1 mi (50 km) SW
- Karluk 40.9 mi (65.9 km) ESE
- Larsen Bay 57.6 mi (92.8 km) ESE
- King Salmon 72.5 mi (116.7 km) NW
- Egegik 75.7 mi (121.8 km) WNW
Distance from Anchorage: 301 mi (484.5 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]()