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Mount St. Helens

Negative of photo taken in 2001, eleven years after the volcano erupted, scanned in to produce this image.

 

FROM WIKIPEDIA:

Mount St. Helens is best known for its catastrophic eruption on May 18, 1980, at 8:32 a.m., the deadliest and most economically destructive volcanic event in the history of the United States.

 

Fifty-seven people were killed; 250 homes, 47 bridges, 15 miles of railways, and 185 miles of highway were destroyed.

 

A massive debris avalanche triggered by an earthquake measuring 5.1 on the Richter scale caused an eruption that reduced the elevation of the mountain's summit from 9,677 ft to 8,363 ft, replacing it with a 1 mile wide horseshoe-shaped crater.The debris avalanche was up to 0.7 cubic miles in volume.

 

The Mount St. Helens National Volcanic Monument was created to preserve the volcano and allow for its aftermath to be scientifically studied.

 

>Within 15 minutes of the eruption, a vertical plume of volcanic ash rose over 80,000 feet.

 

>The volcanic ash cloud drifted east across the United States in 3 days and encircled Earth in 15 days.

 

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Uploaded on November 18, 2015