1980 eruption of Mount St. Helens

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Photograph of the eruption column, May 18, 1980.

On May 18, 1980, Mount St. Helens in Washington erupted. The eruption was recorded as a 5 on the Volcanic Explosivity Index.[1] Throughout the two months before the eruption, there was a series of earthquakes and steam was vented from the mouth of the volcano. A total of 57 people died in the eruption. Including Harry R. Truman, who ran Spirit Lake, and volcano expert David A. Johnston.

References[change | change source]

  1. Fisher, Richard V.; Heiken, Grant; Hulen, Jeffrey (1998). Volcanoes: Crucibles of Change. Princeton University Press. p. 334. ISBN 0-691-00249-5.