It happened because of an overflow of magma.
Mt. St. Helen's is in Washington, the state.
its a volcano
mt. st. Helens erupted in may 18, 1980
It was formed from converget bounderies.
You're thinking of Mount St Helens. From it's Wikipedia entry, it appears like this was the most destructive volcanic eruption in US history. ". . . Fifty-seven people were killed; 250 homes, 47 bridges, 15 miles (24 km) of railways, and 185 miles (298 km) of highway were destroyed. . . "
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where did mt Helen's occur
The eruption that Mt St Helen has is an exploding volcano that shoots lava and rocks into the air.
Mt. St. Helen's is in Washington, the state.
39 in.
Yes
yes
its a volcano
all volcanoes
no
lava rock
The major eruptions of mt st Helen where that it was very active and the ground in the volcano always had a earth quake and so the made the eruptions in mt st Helen still active but was deadly in the 1900s.