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How tall is Mt St Helen's before 1980 eruption?
Mount St. Helens was approximately 9,677 feet (2,950 meters) tall before the 1980 eruption.
What type of eruption was the 1980 eruption of mt st Helens?
The 1980 eruption of Mount St. Helens was a explosive eruption caused by a lateral blast. It was triggered by a massive collapse of the volcano's north flank, releasing pressure built up within the volcano.
How many miles is Tacoma from Mt Rainier and Mt St Helens?
Tacoma is approximately 50 miles from Mount Rainier and 75 miles from Mount St. Helens.
What type of volcanoe is mount saint helens?
A composite volcano.
In 1980 this washington state mountain gave north america its largest volcanic eruption?
Mount St. Helens erupted in Washington state in 1980, resulting in the deadliest and most economically destructive volcanic event in U.S. history.
Where did Mt St Helen's occur?
where did mt Helen's occur
What type of rock is around mt st Helen's?
Mount St Helens is composed primarily of dacite.
What eruption does Mt St Helen's have?
The eruption that Mt St Helen has is an exploding volcano that shoots lava and rocks into the air.
What type of volcanoes is located in the Pacific Northwest?
mt st Helen rfc8rzxdc,fgivkjdnfkjv nzxknfjh
1 Which type of mountain is also often a volcano?
Mt. St. Helen in the state of Washington
Where is mount helen's?
Mt. St. Helen's is in Washington, the state.
What is the type of magma does mt st helen have?
it is basaltic, granitic i dont know which one but one of them i think
What is mt st Helen's circumference?
39 in.
Is MT st helen active?
Yes
Is Mt St Helen in the Rocky's?
yes
Why did mt st Helen's explode?
its a volcano
What do mt Rainier mt Shasta and mt St Helen's have in common?
all volcanoes
