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Teton Fault

Earthquake

Geologists say it's not a matter of if an earthquake will shake Teton County, Wyoming, but rather a matter of when.


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What Is An Earthquake?

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Recent regional seismic activity

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Because of the number of major and minor faults that have been identified, geologists, like Dr. Robert Smith of University of Utah, have predicted that a major earthquake could occur in Jackson Hole and the Greater Yellowstone region within the foreseeable future. Coupled with the underlying soils, which are not "firm rock," this means that structures in Teton County are potentially at risk.

Building a disaster resistent community means more than having an emergency plan once an earthquake occurs. It also means assessing your current structure's ability to withstand an earthquake. Visit Teton County Emergency Management's site and to find activities or classes to help mitigate the effects of an earthquake. To arrange an inspection and inventory of your home's ability to withstand an earthquake, you can contact Building Inspectors at the Town of Jackson (733-0440) or Teton County (733-3959)

Graphic courtesy of Dr. Robert Smith, from forthcoming, Smith, R. B., and Siegel, L., 2000, "Windows into the Earth: The Geologic Story of Yellowstone and Grand Teton National Parks." New York, Oxford University Press.