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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.
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Which mountain erupted in 1980 in Washington US?
Mount St. Helens is a active volcano, in the Washington State.
Which were the worst volcanic eruptions in history?
mt. saint helens
What country is mt saint Helens?
The country that Mount St Helens is called Skamania County, Washington,
What caused mtshasta to erupt?
Mt Saint Helens was caused to erupt because when two plates collided together-the continential (named:North American Plate) was forced over the oceanic crust (named: Juan De Fuca) causing the top of the moutain to blow over the side of the mountian. The oceanic crust goes deeper and deeper into the continential crust that when soon it reaches the lithosphere (the mantle) causing it to melt into lava. Then the hot pressure shoots up the magma chamber and shoots out the top causing mt saint helens. Mt saint helens erupted on May 18, 2000 in Skamania County in Washington. This explosion cause tons of ash, hot rock, and gas. Over 57 people were sadly killed in this eruption. The mountain range that mt saint helens was located on was the Cascade Range which was firts descovered by Thomas J. Dryer. Mt saint helens was a Plinian volcanoe, which meaning when it explodes there is not much lava spewing from the top. It is mostly ash coming out over 5 miles per hour out of the volcanoe. Mt saint helens is now dead in the year of 2013. but it did last erupt in june 10, 2004. -sydney
How big is the crater dimensions of Mt Saint Helens?
96 miles
Can mt saint helens still erupt?
yes it can
Will mt saint helens erupt in the future?
yes
How dangerous is Mt Saint Helens?
scientist say mt. saint helens is so powerful that the erupt of may 18 1908 was felt in 3 other states
Continent where Mt Saint Helens is located.?
Mt. Saint Helens is located on the North American continent.
Is Mt Saint Helens a volcano?
yes, Mt Saint Helens is a volcano. located in Skamania County, Washington
Were people killed when Mt Saint Helens erupted?
Yes, many people died when Mt. saint helens erupted.
Which mountain erupted in 1980 in Washington US?
Mount St. Helens is a active volcano, in the Washington State.
What are 3 cascade volcanoes that can erupt at anytime?
Mt. Hood, Mt. Rainier, Mt. Saint Helens, Mt. Baker Really, any major mountains in Oregon as well. The first three I mentioned are the most probable.
Which way did mt st helens erupt?
Sideways (Lateral Blast).
What is the description of Mt Saint Helens?
big!!
Is Mount Saint Helens in Seattle?
no it is not in seattle. Mt Saint Helens is about 100 miles south of Seattle.
What is a really famous volcano?
Mt Pompeii and Mt Saint Helens
