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Like so many volcanic eruptions it was caused by the rising of magma where an oceanic plate, the Juan de Fuca, descends under the continental North American plate. The resulting friction causes heat which turns the destroyed Oceanic crust into magma. Over time the build up becomes so great that it forces its way to the Earth's surface.
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What kind of volcano is Mount St. Helens in Washington?
Mount St. Helens, an active stratovolcano, is of the composite type.
What was the name of the volcano that erupted in the 80's?
Mount St. Helens erupted on May 18, 1980, in Washington State, USA. The eruption caused significant destruction and loss of life.
What is the radius of the Mount Saint Helens Volcano?
The radius of the Mount St. Helens volcano is approximately 4 miles (6.4 kilometers).
What volcano erupted in 1970?
The volcano that erupted in 1970 was Mount St. Helens in Washington state, USA. The eruption occurred on May 18, 1980, resulting in the catastrophic eruption that caused significant damage and loss of life.
Is mt st Helens a violent or nonviolent volcano?
Mount St Helens is violent.
What are eviromental effects caused by mount st helens volcano?
me mum in a wetsuit
Is mount saint helens a composite volcano?
Yes. Mount St. Helens is a composite volcano.
What kind of volcano is Mount St. Helens in Washington?
Mount St. Helens, an active stratovolcano, is of the composite type.
When did mount saint Helens errupt?
Mount Saint Helens errupted on May 18,1980 at exactly 8:32 am.It destroyed many things and killed people.
What is the volcano that erupted in the state of Washington in 1980?
mount st Helens
What was the name of the volcano that erupted in the 80's?
Mount St. Helens erupted on May 18, 1980, in Washington State, USA. The eruption caused significant destruction and loss of life.
How are mount st Helens and Mount Etna different?
mount st helens errupted from the side whilst no other volcano does that
What is the radius of the Mount Saint Helens Volcano?
The radius of the Mount St. Helens volcano is approximately 4 miles (6.4 kilometers).
Is Mount St Helens an active volcano?
Yes it is an active volcano.
What volcano erupted in 1970?
The volcano that erupted in 1970 was Mount St. Helens in Washington state, USA. The eruption occurred on May 18, 1980, resulting in the catastrophic eruption that caused significant damage and loss of life.
What country is volcano mount St Helens in?
Mount St. Helens is in Washington state in the United States ofAmerica.
What volcano is close to mount saint Helens?
Mount Saint Helens is the valcano. It's pretty close to itself.
