mount st
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MOUNT ST. HELENSRyan Johnson
About Mt. St. Helens
5th largest peak in Washington Part of the Cascade Mountain Range Mount St. Helens is an active
stratovolcano
Prior to the Eruption Steam explosion and crater
opening occurred at the mountain’s peak
Over 10,000 earthquakes occurred.
A buldge on north side of mountain emerged
People Cautioned
After quakes the threat of eruption was obvious.
No real warning was available
May 17th, 1980 23 Mile radius of devastation Ash cloud sent 80,000 Ft. Debris Traveled Fast
Aftermath Over 250 Homes destroyed 57 Lives Taken 9,677 Ft. to 8,635 Ft. in minutes Debris scattered for miles.