Mount St. Helens Mount St. Helens is an supple stratovalcano in Skamania County, Washington, in the unruffled Northwest region of the join States. It is located 96 miles Confederate around of Seattle and 53 miles north-east of Portland, Oregon. The potentiometer is part of the go down Range. It is most renowned for a catastrophic belching on whitethorn 18, 1980. That gust was the most deadly and economically destructive volcanic knock in the history of the get together States. 57 community were killed, and two hundred homes, 47 bridges, 15 miles (24 km) of railways and 185 miles (300 km) of lane were destroyed.
The eruption blew the contribute 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 differently volcanoes in the Cascade Range, St. Helens is a great cone of rubble, consisting of lava c aren interlayered with ash, pumice and other deposits. volcanic cones of this internal structure are called composite cones or stra...If you command to get a teeming essay, order it on our website:
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