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30 Mar 2017 On March 16, 1980, the first sign of activity at Mount St. Helens occurred as a series of small earthquakes. On March 27, after hundreds of additional earthquakes, the volcano produced its first eruption in over 100 years. Steam-blast (phreatic) eruption from the summit crater of Mount St. Helens on April 6, 1980. Watch BBC video clips about Mount St Helens, a volcano in Washington, United States, that erupted sideways in 1980 and killed 57 people. The eruption killed 57 people, in the lateral blast, ashfall , and lahars. The causes to death included asphyxiation, thermal injuries, and trauma. Four indirect 18 May 2017 Watch: What 1980 eruption of Mount St. Helens looked like from Information from The Seattle Times archive was included in this report. 15 May 2015 Thirty five years ago, Mount St. Helens erupted in Washington, spewing ash, rock and hot gases into the air and causing mud to flow down the Go Hiking Hiking Guide Mount St. Helens Summit - Worm Flows Route. Info trail, below. Hike by WTA Community: Multiple authors contributed to this report. The history of Mt. St. Helens eruption and erupting periods including native american was followed in 1978 by a more detailed report, in which Crandell and 28 Feb 2013 Mount St. Helens erupted on May 18, 1980. The volcano, located in southwestern Washington, used to be a beautiful symmetrical cone about 9,600 feet (3,000 meters) above sea level. The eruption, which removed the upper 1,300 feet (396 meters) of the summit, left a horseshoe-shaped crater and a barren wasteland. 20 Apr 2009
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