Clast composed of sand within tephra exposed in bluffs along the south shore of the North Devil Mountain Lake maar. The sand was likely in the permafrost and erupted frozen. The Espenberg maars are volcanic craters formed by the explosive interaction of magma with water from permafrost.
Date: Sep 8th, 2021
Volcano(es): Espenberg
Photographer: Orr, Tim
URL: avo.alaska.edu/image/view/178381
Credit: Image courtesy of AVO/USGS.
Use Restriction: Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
Full Resolution.
Volcano(es): Espenberg
Photographer: Orr, Tim
URL: avo.alaska.edu/image/view/178381
Location:
Latitude: 66.393219444444
Longitude: -164.51786666667
Use Restriction: Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
Full Resolution.
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