Continuous harmonic tremor recorded by the University of Washington during the eruption of July 22. King County, Washington. 1980.
Dates
Date Taken
1980
Summary
Album caption: Continuous harmonic tremor recorded by the University of Washington, Seattle, during the eruption of July 22, 1980. King County, Washington. July 22, 1980. (Photo by Henry Spall) Portion published on p. 225, upper right photo, in U.S. Geological Survey. Earthquake information bulletin. 12, no.6. November–December 1980. Index card unavailable.
Summary
Album caption: Continuous harmonic tremor recorded by the University of Washington, Seattle, during the eruption of July 22, 1980. King County, Washington. July 22, 1980. (Photo by Henry Spall) Portion published on p. 225, upper right photo, in U.S. Geological Survey. Earthquake information bulletin. 12, no.6. November–December 1980.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Mount St. Helens Collection.
Rights
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