Mount St. Helens Erupts

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TV-PG
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1:02

A report from Portland, Oregon, describes alarming volcanic activity on Mount St. Helens in Washington's Cascade Range. Starting on March 20, 1980, a series of intensifying earthquakes blasted a 300-foot crater near the top of the peak, putting the nearby population on alert. On May 18, 1980, the volcano erupted.

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