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IMAGE 154551
AVO Image

Infrasonic tremor from likely Strombolian eruptive activity at Shishaldin volcano as registered on AVO's newly upgraded infrasound array in Sand Point, AK. The calculated back azimuth is pegged strongly in the direction of Shishaldin. Infrasound is low-frequency (inaudible) sound energy that propagates long distances in the atmosphere.

Date: October 21, 2019 7:20 PM UTC
Photographer/Creator: Kaufman, Max

Citation Information:
Image courtesy of the AVO/UAF-GI.
Please cite the photographer and the Alaska Volcano Observatory / University of Alaska Fairbanks, Geophysical Institute when using this image.

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Page modified: December 23, 2019 16:01
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