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The major eruptions of mt st Helen where that it was very active and the ground in the volcano always had a earth quake and so the made the eruptions in mt st Helen still active but was deadly in the 1900s.

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14y ago

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What are the benefits of eruptions of mt St Helens?

Mt. St. Helens benenfited humans by the rock from lava are used to build and repair roads in this day!


Where was the explosion of mt st Helens?

At Mt. St. Helens.


What are some of the benefits of mt st Helen's eruptions?

Mt. St. Helens benenfited humans by the rock from lava are used to build and repair roads in this day!


Why is Mt St Helens eruption so well known?

Because I think it was one of the biggest eruptions.


What Volcano in the northwestern US?

Mt. St. Helens Mt. St. Helens


Is mt st helens non-explosive or explosive?

Mount St. Helens is generally regarded as an explosive volcano, but like most stratovolcanoes, it can produce both explosive and non-explosive eruptions.


How many eruptions on average does mt saint helens have per year?

Mt. St. Helens does not have eruptions on a yearly basis. It is an active volcano, so the frequency and size of eruptions can vary. Since its catastrophic eruption in 1980, there have been smaller eruptions in subsequent years, but there is no fixed average number of eruptions per year.


What type of volcanoe is Mt St Helen?

Mount St. Helens is a stratovolcano, also known as a composite volcano. This type of volcano is characterized by its steep slopes and explosive eruptions due to a mixture of lava flows and pyroclastic material.


Does mt st helens erupt andesite rock?

In some cases, yes. However the most recent eruptions have produced dacite.


When was the first eruption of mt st helens?

Mt St Helens first erupted on May 18, 1980


What type of eruptions does mount st Helens do?

Like most stratovolcanoes, Mount St Helens alternates between explosive and effusive eruptions.


Whice state is mount st Helens you?

Mt st. Helens is in Washington.