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Unnamed lava dome

Alaska Peninsula Arc at 155.4°W

Lava dome · United States · 402m

A small unnamed lava dome and an associated lava flow is located near the center of this Planet Labs September 2019 satellite image mosaic (N is at the top). The dome lies near the head of Big Alinchak Creek, NW of Alinchak Bay, and does not show evidence of glacial erosion.
A small unnamed lava dome and an associated lava flow is located near the center of this Planet Labs September 2019 satellite image mosaic (N is at the top). The dome lies near the head of Big Alinchak Creek, NW of Alinchak Bay, and does not show evidence of glacial erosion. · Photo: Satellite image courtesy of Planet Labs Inc., 2019 (https://www.planet.com/).
Type
Lava dome
Country
United States
Region
North America Volcanic Regions / Alaska Peninsula Volcanic Arc
Elevation
402m
Coordinates
57.870, -155.411
Last eruption
Unknown
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Minor (Silicic)
Major rock type
No Data (checked)
Geological summary

A small unnamed lava dome and an associated lava flow about 30 km E of Becharof Lake and 8 km NW of Alinchak Bay are not significantly modified by glacial erosion. Detterman et al. (1987) suggested a Holocene age for the small dome. Lava flows traveled a short distance to the north.

Eruption history

Detailed timeline

No eruption records available.

External links

⚠ For reference only. Not for emergency response.