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Press Release

from the Office of the Wyoming State Geologist

Ron Surdam, State Geologist

October 31, 2007

Earthquake Felt in Jackson and Dubois

A magnitude 4.0, intensity IV earthquake occurred 28 miles ESE of Jackson, Wyoming at 22:23 MST on October 30, 2007. The U.S. Geological Survey National Earthquake Information Center in Golden, Colorado reported this earthquake to the Wyoming State Geological Survey. The quake was felt as intensity III in Bondurant, Cora, Dubois, and Wilson. Intensity II shaking was reported in Moran and Jackson.

The WSGS has generated seismological characterizations of all Wyoming counties (see http://www.wrds.uwyo.edu/wrds/wsgs/hazards/quakes/seischar/seischar.html), which include analyses of historic seismicity as well as projections of possible future earthquakes.

For more information, please contact Seth Wittke by phone at (307) 766-2286, ext. 244, or by email at wittkesj@uwyo.edu.