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The Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat ...
For many people who lived through the 1980 eruption of Mount Saint Helens, it is the biggest news story of their lifetimes.
PORTLAND, Ore. (KOIN) — Earthquake activity around Mount St. Helens spiked to nearly 350 quakes between Feb. 1 and June 18, and officials said it may be a sign of “recharging” activity.