Name: Mt St Helens
Location: 154 km south of Seattle, Washington State
Year: 1980
Type of Eruption: Plinian, Pelean
Consequences: Side of the mountain was broken off
In 1980, Mt St Helens, situated just south of Seattle, Washington, erupted as a result of a 5.1 earthquake. This eruption launched a plume of ash 63000 feet in the air! It was classified as a Plinian and a Pelean eruption because not only did it explode from the top and release that massive plume of ash, it also blew a hole in the side in which lava leaked from. The created a crack from that hole to the top. The rock then slid down and broke up in a land-slide. This created a large hole in the crater.
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