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Frequency of Earthquakes for Selected Areas in the Western United States for the Period 1945-59

Description: The following report covers earthquake frequency data for the period 1945-59 for the states of California, Nevada, Washington, Montana, Wyoming, Utah, Arizona, and New Mexico. Additionally, it presents earthquake-frequency data for 100-mile square areas in California, Nevada, Washington, and Montana-Wyoming.
Date: February 1961
Creator: Twenhofel, W. S.; Black, R. A. & Balsinger, D. F.
Partner: UNT Libraries Government Documents Department
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