“The big question is if Yellowstone started shaking tomorrow, what is there to expect?” says Dr. And if it does, there is concern about how intense that eruption may be. The period of slow, steady rise has many scientists wondering whether Yellowstone might erupt in the near future. However, in 2010 the land began to subside. Volcanologists, who have been measuring this activity since 1923, say the ground rose about 25 centimeters (9.8 inches) between 20. When the magma begins to solidify and cool, the ground falls. As magma feeds into a magma chamber, or reservoir situated about 6-10 kilometers (4-6 miles) beneath the park, the ground swells. The ground above the Yellowstone supervolcano sits on a hot spot made of molten and semi-molten rock called magma. The volcano itself is actually located in northwestern Wyoming, which is where the bulk of Yellowstone is contained. This giant is the “ supervolcano” that lies beneath Yellowstone National Park, the wildlife and forest preserve positioned on a sprawling expanse that extends through the states of Wyoming, Idaho, and Montana. But when it finally awakes it may roar and heave with unprecedented force. Though it stirs occasionally, it has not risen from slumber in nearly 70,000 years. A sleeping giant is nestled in the western part of the United States.
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