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Mount St. Helens is geologically young compared with the other major Cascade volcanoes. It formed only within the past 40,000 years, and the pre-1980 summit cone began rising about 2,200 years ago. The volcano is considered the most active in the Cascades within the Holocene epoch (the last 10,000 or so years).
Wiki User
∙ 6y ago
Wiki User
∙ 9y agoMount St Helens is an active volcano. It has had four major eruptions since 1479 along with many other small eruptions, lava flows, and pyroclastic flows.
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What is the classification of mount st Helens?
Mount St. Helens is an active stratovolcano
What kind of volcano is Mount St. Helens in Washington?
Mount St. Helens, an active stratovolcano, is of the composite type.
Is st Helens a active volcano?
Mount st. Helens is an active volcano cause it lost erupted in 2005 Decmber 17
What kind mountain is mount st Helens?
Mount St. Helens consists of lava rock interlayered with ash, pumice and deposits, together with layers of basalt and andesite.
What kind of volcano is mount st helens?
Mount St.Helens is a an active stratovolcano.
What is the classification of mount st Helens?
Mount St. Helens is an active stratovolcano
What kind of volcano is Mount St. Helens in Washington?
Mount St. Helens, an active stratovolcano, is of the composite type.
Is mount st helens active extinct or dormant?
Right now Mount St Helens is dormant.
Is Mount St Helens an active volcano?
Yes it is an active volcano.
Is st Helens a active volcano?
Mount st. Helens is an active volcano cause it lost erupted in 2005 Decmber 17
What kind mountain is mount st Helens?
Mount St. Helens consists of lava rock interlayered with ash, pumice and deposits, together with layers of basalt and andesite.
What kind of volcano is mount st helens?
Mount St.Helens is a an active stratovolcano.
What type is mount st helens?
It's an active stratovolcano
Is Mount St. Helens explosive?
Yes, it is still active.
Where can you find active volcanoes?
mount st helens of united states
What is the closest active earthquake zone to Minnesota?
Mount st. Helens
Which country is mt St. Helens in?
Mount St. Helens is in the United States. It is an active volcano located in Skamania County, Washington.
