Geologists Hannah Dietterich (left) and Janine Andrys (right) examining a section of exposed tephra on Adak Island while working to understand the regional history of explosive volcanism.

Geologists Hannah Dietterich (left) and Janine Andrys (right) examining a section of exposed tephra on Adak Island while working to understand the regional history of explosive volcanism.

Date: August 17, 2026
Volcano(es):
Photographer: Matthew W Loewen
URL: avo.alaska.edu/image/view/197474

Location:

Coordinates: (51.83053,-176.508318)

Credit: File courtesy of AVO/USGS.
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