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Volcano Comparisons

The three caldera-forming eruptions at Yellowstone (2.1 million years ago, 1.3 million years ago, and 640,000 years ago), were respectively about 2,500, 700, and 1,000 times larger than the 1980 eruption of Mt. St. Helens in the state of Washington.

cubes represent the volume of various eruptions throughout Yellowstone's history
Mount Mazama, a former stratovolcano, is more famous for what formed in the aftermath of its catastrophic eruption some 7,000 years ago. Where a 12,000-foot volcanic cone once stood, now lies Crater Lake, the main feature of Crater Lake National Park located in southern Oregon.

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drawing of the OFVEC
Young Scientists
Yellowstone Express
Why Geysers Erupt
Hot Water Treasures
Hot Spring Ecology
Scientific Research

This work is supported by

National Science Foundation    Yellowstone Park Foundation

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