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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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How does a volcano differ from other kinds of depositional mountains?
Volcanoes are different from other mountains because they are built by deposits (magma), whereas other mountains are built by erosion. Volcanoes have lava, whereas other depositional mountains do not, even though they may have hot spots.
Where did mtst Helens erupt?
Mt. St. Helens is a mountain in Southern Washington state, in the Cascade Mountain Chain. It's most recent major eruption was on May 18, 1980
Did Mount St. Helens erupt with little warning?
The eruption of Mt. St. Helens on May 18, 1980 did give significant warning before the actual large eruption took place. There was a period of a month and a half of unrest before the flank collapse and lateral blast events took place. The unrest began being documented March 15, 1980, however it was not immediately recognized as possibly being a precursor to a volcanic event. The seismic events were first recognized as precursor activity on March 20th, 1980 with a magnitude 4.2 under the north flank of the volcano (Which also turned out to be the eruptive and failure point of the volcano on May 18). For further and detailed readings on the precursor events before the triggered eruption please see related links for the Cascade Volcanoes Observatory.
What Volcano erupted in 1980?
Many volcanoes erupted in the 1980s. Most notable are the eruptions of Mount St. Helens Washington state in 1980, El Chichon in Mexico in 1982, and Nevado del Ruiz in Columbia in 1985.
What volcano erupted in 1970?
Mount St. Helens famously erupted on May 18 1980.
Name a volcanic mountain in the cascade range?
There are many volcanoes in the Cascade range. The most famous is Mt. St. Helens, which erupted on May 18, 1980, killing 57 people. The largest volcano in the cascade range is Mt. Rainier.
What volcano erupted on May 1980?
On May 18, 1980, a major volcanic eruption occurred at Mount St. Helens, a volcano located in the state of Washington, United States.
What volcano erupted on may 18 1980 in the cascade mountains?
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. . . "
What is the date of the most destructive eruption of the Kilauea volcano?
It was in the 18th of may in 1980
What are the hazards on mountains?
avalanchebearsslipping and fallingfogit may be a volcano (sudden explosion).this was written by Sassie
What hazards are on mountains?
avalanchebearsslipping and fallingfogit may be a volcano (sudden explosion).this was written by Sassie
What is Washington's Mount St Helens?
An active strato-volcano that had an explosive eruption in May 1980.
Do all volcanoes have snow?
They won't have snow BECAUSE they are a volcano. A volcano may have snow if it reaches a certain height - simply because at that height, mountains tend to have snow.
What year did the mt st helns volcano first erupt?
The first eruption was on the 18th of May, 1980.
How does a volcano differ from other kinds of depositional mountains?
Volcanoes are different from other mountains because they are built by deposits (magma), whereas other mountains are built by erosion. Volcanoes have lava, whereas other depositional mountains do not, even though they may have hot spots.
Where did mtst Helens erupt?
Mt. St. Helens is a mountain in Southern Washington state, in the Cascade Mountain Chain. It's most recent major eruption was on May 18, 1980
What would happen if the continental land masses were static?
-no mountains -Pangaea may still exist -no individual cultures -no earthquakes -no volcano's -no life
