Multiple layers of volcaniclastics and lava flows are exposed in the crater wall of Cone E in Okmok volcano's caldera. The 1997 Cone A lava flow is in the foreground at the base of Cone E. The steep walls of Okmok caldera are seen on the skyline in the background.
Image courtesy of the AVO/ADGGS.
Please cite the photographer and the Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys when using this image.
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