It’s been 45 years since an eruption occurred on the U.S. mainland. The May 18, 1980, eruption of Mount St. Helens in southern Washington claimed 57 lives and blasted the terrain of old-growth spruce ...
David Johnston, a scientist studying Mount St. Helens when it erupted in 1980, was killed in the blast. His body was never recovered.
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When Mount St. Helens erupted on May 18, 1980, the landscape changed in an instant—the geologic version of an instant, anyway. It was the deadliest eruption the United States had ever seen, leveling ...
SEATTLE — Visitors to the Johnston Ridge Observatory at the Mount St. Helens National Volcanic Monument can look forward to a spectacular view of a hulking slab of rock that’s rapidly growing in the ...