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Questions About Quakes

Studies have shown that Yellowstone is one of the most seismically active regions in North America. Members of the Hayden Survey of 1872 named a camp on the northeast shore of Yellowstone Lake “Earthquake Camp” because of the frequency of shocks they experienced.

Members of the Hayden expidition set up camp on the shore of Yellowstone Lake

Most of the earthquakes in the Yellowstone region are too small to be felt. The size of an earthquake is given by its magnitude. A small quake is one with a magnitude of less than three on the Richter Scale. On this scale, an earthquake wave increases by a factor of ten for each unit on the scale. Fractures that allow Yellowstone’s underground water to circulate are kept open by earthquakes. Sometimes quakes may change the temperature of hydrothermal features or alter the frequency of geyser eruptions.

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Young Scientists
Yellowstone Express
Why Geysers Erupt
Hot Water Treasures
Hot Spring Ecology
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This work is supported by

National Science Foundation    Yellowstone Park Foundation
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