Wanna Know Idaho

What Was The Treasure Valley Like When There Was Volcanic Activity?

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Synopsis

On May 18, 1980, Mount St. Helens erupted. The volcano 50 miles north of Portland sent out a lateral blast first, killing David Johnston, one of the scientists who had been monitoring the mountain months leading up to the blast. There was a 5.1 earthquake and a landslide, and every tree, animal and person within miles died.