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How many Mt St Helen eruptions would it take to equal the largest Yellowstone eruption?
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What year was the largest eruption in the us?
The largest eruption in the USA was Mount St. Helen's in Washington state.
How was Mount Saint Helen eruption different from other eruptions?
The eruption of Mount Saint Helens was different from other explosive eruptions in that the initial blast was to the side, rather than straight up.
When will Yellowstone blow?
Yellowstone National Park sits on top of one of the largest, most active, and potentially most explosive volcanoes in the world. The caldera of the volcano is roughly 28x47 miles in size, centered roughly under Yellowstone Lake. The last known eruption, a relatively minor event, occurred about 70,000 years ago. There have been three "super eruptions" of Yellowstone over the past 2.1 million years, each with an interval of about 660,000 - 800,000 years. The last giant caldera-forming super eruption occurred about 640,000 years ago. Those looking for patterns point out that we are due for another super eruption, based on the past interval. However, there is no evidence to suggest that Yellowstone's eruptions are cyclical. There currently is no way to predict when Yellowstone will next erupt, but when it does, it most likely will not be the super eruption people speak about. Seismic studies suggest that the magma chamber under Yellowstone is cooling and a large portion of the magma has solidified, making a large eruption highly unlikely. If a super eruption does occur, however, it will smother much of the United States and change weather patterns throughout the world for years, displacing an estimated 1,000 times more rock and ash than the Mount St. Helen's eruption of 1980.
Are Mount St Helen's eruptions quiet or explosive?
Mount St Helens has produced both quite and explosive eruptions. It is best known for a very large explosive eruption in 1980.
In 1980 this washington state mountain gave north america its largest volcanic eruption?
Mt Helen's
How many times has Mount st Helen's?
I believe 38 times including the 1980 eruption, but 45 or more counting all the little eruptions that have occured since.
Was the eruption of Mount St Helen's a quiet eruption?
no it was a loud eruption
How many eruptions has Mt St Helen's had?
Mount Saint Helens is located south of Seattle, Washington. In recent history, it has had a major eruption in 1980, and has been active in varying degrees of intensity since then. Which of these active periods can be classified as eruptions is up for debate.
What caused the eruption of Mt St Helen?
volcano eruptions are triggered by seismic activity, meaning earthquakes and such. Mt St Helens is along the ring of fire, which is full of seismic activity.
What eruption does Mt St Helen's have?
The eruption that Mt St Helen has is an exploding volcano that shoots lava and rocks into the air.
What type of eruption was the 1980 eruption of mt st Helens?
The Mount Helen's 1980 eruption was a major volcanic eruption.
Is mount st Helen's eruptions violent or quiet?
Mount Saint Helens is actually both viloent andquiet
