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Katie Mulliken (AK DGGS) and Pavel Izbekov (UAFGI) shovel peat to expose tephra (volcanic ash) layers north of Pavlof and Pavlof Sister volcanoes. Tephra studies help us understand the frequency and magnitude of volcanic eruptions, and help us improve volcanic ashfall hazard assessments. Note: for best viewing of the video, click the "full size" link at the bottom of the page.

Date: Jul 22nd, 2018
Volcano(es): Pavlof Pavlof Sister
Photographer: Mulliken, Katherine
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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