18th May 1980
The date of the eruption
5.1
The Richter magnitude of the final earthquake
8.32
The time of the eruption
57
The number of people who died
300
The size of the bulge (in feet)
Washington State
The location of the Volcano
15 minutes
How long the blast lasted.
mudflows
Formed when ice and snow was heated from the blast and mixed with ash, pumice, and rock.
1300 feet
How much shorter the mountain was the day after the blast.