Image:MSH80 early eruption st helens from NE 04-10-80.jpg

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Description
English: On March 20, 1980, after a quiet period of 123 years, earthquake activity once again began under Mount St. Helens volcano. Seven days later, on March 27, small phreatic (steam) explosions began. This view is from the northeast.
Source

CVO Photo Archives Mount St. Helens, Washington Before, During, and After May 18, 1980
Date

April 10, 1980
Author

Donald A. Swanson
Permission
(Reusing this image)
Public domain This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy


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actuel28 novembre 2007 à 19:112 922×1 979 (3,74 Mio)CarolSpears ({{Information |Description={{en|On March 20, 1980, after a quiet period of 123 years, earthquake activity once again began under Mount St. Helens volcano. Seven days later, on March 27, small phreatic (steam) explosions began. This view is from the northe)

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