there were actually three plates. The Juan de Fuca plate, the Pacific Plate and the North American Plate.
Mount St. Helen does not erupt in any pattern. When it erupted in 1980, scientist had no idea that it was going to erupt because it did not follow a pattern and it did not have very many precursor.
The eruption of Mount St. Helens in 1980 was triggered by a combination of magma rising towards the surface, increasing pressure in the volcano, and a sudden release of built-up gases. This led to a flank collapse on the north side of the volcano, resulting in a massive eruption that devastated the surrounding area.
There is always earthquakes when volcanoes erupt, so, yes.
The answer to this question is that the plates are still colliding which is causing the elevation of the volcano to become greater.
Eruptions for about 150 to 200 years followed by dormancy for an equal or extended period of time. Most of the eruptions are minor ones with a few major ones in the mix. That's just based on last 2000 years after its became more like a stratovolcano in what it emitted.
The 3 plates, The Juan de Fuca plate, the Pacific Plate and the North American Plate collided and made mt st helens but i'm not sure what's happening currently with the plates....
Mount St. Helen does not erupt in any pattern. When it erupted in 1980, scientist had no idea that it was going to erupt because it did not follow a pattern and it did not have very many precursor.
Tectonic movement in the ocean or sfs sea-floor spreading, caused it
subduction zones caused the formation of the mountian, two plates colliding together, a destructive plate boundary
No 'cause its extinct!
May 18th, 1980.
Mount St. Helen does not erupt in any pattern. When it erupted in 1980, scientist had no idea that it was going to erupt because it did not follow a pattern and it did not have very many precursor.
The eruption of Mount St. Helens in 1980 was triggered by a combination of magma rising towards the surface, increasing pressure in the volcano, and a sudden release of built-up gases. This led to a flank collapse on the north side of the volcano, resulting in a massive eruption that devastated the surrounding area.
It is virtually impossible to predict an eruption.
There is always earthquakes when volcanoes erupt, so, yes.
Helen of Sparta.
Volcanoes eurpt more often in Mount St. Helen located in Washington in the U.S