On May 18, 1980, an earthquake struck below the north face of Mount St. Helens in Washington State, triggering the largest landslide in recorded history, and a major volcanic eruption that scattered ash across a dozen states.
On May 18, 1980, an earthquake struck below the north face of Mount St. Helens in Washington State, triggering the largest landslide in recorded history, and a major volcanic eruption that scattered ash across a dozen states.
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