The distinctive shape of Yellowstone's magma chamber and its pattern of eruptions over millions of years are due to the geology of the Yellowstone hot spot. The hot spot, forming deep within Earth's mantle, remains relatively stable while the North American continent shifts slowly to the southwest.

Map by Alejandro Tumas

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When a Sleeping Giant Awakes
When a Sleeping Giant Awakes Article

Best For
6-12+

Subjects
Geography, Science

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Past volcanic eruptions that have taken place at Yellowstone National Park have been global disasters. Today, scientists are trying to predict how this ticking time bomb will explode—or fizzle out.