Footage of the 1980 Mount St. Helens Eruption by Smithsonian Channel   12 months ago

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On May 18, 1980, the Mount St. Helens became the largest and most destructive volcanic eruption in U.S. history. By the end of its cycle of fire and fury, 57 people had died.

From the Series: Make It Out Alive: Mount St. Helens
http://bit.ly/MtStHelensAlive