Mount St. Helens Mount St. Helens is an active stratovalcano in Skamania County, Washington, in the serene Northwest region of the joined States. It is located 96 miles southern around of Seattle and 53 miles northeast of Portland, Oregon. The mountain is part of the go down Range. It is most famous for a catastrophic belch on whitethorn 18, 1980. That eruption was the most deadly and economically destructive volcanic eruption in the history of the United States. 57 community were killed, and 200 homes, 47 bridges, 15 miles (24 km) of railways and 185 miles (300 km) of bridle-path were destroyed.
The eruption blew the contribut e of the mountain off, reducing its summit from 9,677 feet to 8,364 feet in elevation and substitute it with a mile-wide horeshoeshaped crater. Like most of the other volcanoes in the Cascade Range, St. Helens is a great cone of rubble, consisting of lava rock-and-roll interlayered with ash, pumice and other deposits. Volcanic cones of this internal structure ar called composite cones or stra...If you want to get a undecomposed essay, order it on our website:
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