On May 18, 1980, the eruption of Mount St. Helens emitted 1.5 million metric tons of sulfur dioxide into the atmosphere while its pyroclastic lava flow incinerated virtually everything within a ...
May 18, 1980, is a day that lives in Northwest infamy. On that fateful day, Mount St. Helens erupted with an explosive fury. Although the day of the eruption is what most people remember, the build-up ...
Mount St Helens, Washington viewed from Portland, Oregon. Source: Ilan Kelman The volcano Mount St. Helens in Washington state exploded at 8:32 a.m. on May 18th, 1980, exactly 40 years ago.
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