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IMAGE 87621
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Explosion signals from Mount Cleveland, recorded on 21 July 2015 at a station 3.9 km (2.4 mi) from the summit of the volcano. Note the characteristic delay in the arrival of the infrasound signal ~11.5 seconds after the seismic signal. This is due to the lower propagation velocity of sound in the atmosphere than in the Earth.

Date: July 21, 2015 12:00 AM
Photographer/Creator: Lyons, John

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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