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1980 eruption of Mount St. Helens

From Simple English Wikipedia, the free encyclopedia
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]

For two months before the eruption, earthquake trembles and steam was vented from the mouth of the volcano. 57 people died in the eruption.[2]

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.
  2. Those who lost their lives because of the May 18, 1980 eruption of Mount St. Helens. KGW news. Archived from the original (PDF) on March 26, 2009.