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How was Mount St. Helens reawaken?

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A view to the north of the "two-tone" mountain--an appearance produced by prevailing easterly winds during the initial activity of Mount St. Helens. Mount Rainier is visible in background (Photograph by C. Dan Miller). A magnitude 4.2 (Richter Scale) earthquake on March 20, 1980, at 3:47 p.m. read more

Even if Mount St. Helens does erupt in the near future, scientists don't expect it to be nearly as devastating as the famous 1980 eruption, in which the top 1,300 feet of the mountain collapsed and 57 people died. read more

Mount St. Helens was known as the"Fujiyama of America." Mount St. Helens, other active Cascade volcanoes, and those of Alaska form the North American segment of the circum-Pacific"Ring of Fire," a notorious zone that produces frequent, often destructive, earthquake and volcanic activity. read more

Mount St. Helens or Louwala-Clough (known as Lawetlat'la to the indigenous Cowlitz people, and Loowit to the Klickitat) is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. read more

Mount St. Helens can pause for a thousand years between big explosive eruptions or it can pause for three. These results have left geologists with one certainty and a number of questions. JOHN PALLISTER: First of all, we expect this volcano to erupt again, as repeatedly as in the past. read more

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