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.
The North American and Juan de Fuca plate, a destructive plate boundary
Mount St. Helens, an active stratovolcano, is of the composite type.
Mount St. helens
Mount St Helens is violent.
Any volcano? Mount St. Helens is one.
The Mount St. Helens volcano was the strongest volcano
me mum in a wetsuit
Yes. Mount St. Helens is a composite volcano.
Mount St. Helens, an active stratovolcano, is of the composite type.
Mount Saint Helens errupted on May 18,1980 at exactly 8:32 am.It destroyed many things and killed people.
mount st Helens
mount st helens errupted from the side whilst no other volcano does that
Yes it is an active volcano.
Mount St. Helens is in Washington state in the United States ofAmerica.
Mount Saint Helens is the valcano. It's pretty close to itself.
Volcano.
Volcano
Mount St. Helens