English Mount St. Helens eruption German Eruption Mount Saint Helens 18.05.1980 applies to jurisdiction: United States of America determination method...
DescriptionMSH80 eruption mount st helens 05-18-80-dramatic-edit (cropped).jpg English: On May 18, 1980, at 8:32 a.m. Pacific Daylight Time, a magnitude...
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