Link to USGS home page.
Scientific Investigations Map 2893
  About USGS /  Science Topics /  Maps, Products & Publications /  Education / FAQ

Data Related to Late Quaternary Surface Faulting on the Eastgate Fault, Churchill County, Nevada

By Anthony J. Crone,1 Jai-Bok Kyung,2 Michael N. Machette,1 David J. Lidke,1 Koji Okumura,3 and Shannon A. Mahan1

     1U.S. Geological Survey, Denver, CO 80225
     2Korea National University of Education, Chungbuk, South Korea
     3Hiroshima University, Hiroshima, Japan

thumbnail image of map

In the past 130 years, 11 large (M>6.5) historical earthquakes in the Basin and Range province of the Intermountain West have produced documented surface ruptures, the majority of which have occurred in the north-south-trending Central Nevada seismic belt. Slip rates on individual normal-slip faults in the province are low compared to the rates on faults associated with plate boundaries, such as those in California. Nevertheless, these low-slip, normal faults can pose a significant seismic hazard, especially in urbanized areas such as the Wasatch Front in Utah, and the eastern side of the Sierra Nevada Mountains in western Nevada and eastern California.

The purpose of this map and report is to provide a basic description of the Eastgate fault study and to release the field data that were collected during our study. Much of this detailed information is inappropriate for publication in professional journals, so we use this large-format map and report as a means to release these details to the scientific community. By design, this report contains minimal interpretation of the fault’s late Quaternary movement history; this history will be the subject of a future report in a scientific journal.

Version 1.1

Posted January 2006

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Acrobat Reader or similar software is required to view it. Download the latest version of Acrobat Reader, free of charge.

For viewing and printing upon download.
(This pamphlet is accessible as defined in Section 508 of the Rehabilitation Act of 1973, Amendments of 1998.)
For viewing and printing upon download.
*Downloading Suggestion

It is best to download a large PDF file to your hard drive rather than open it inside your browser.  A standard click may automatically open the PDF file inside the browser but doing so will result in a very slow load.
                For guidance on how to do this, go to [].
Downloading the PDF file may take several moments but will be worth the wait.   Once it is downloaded, open the PDF from your hard drive using Adobe Acrobat—it will open in a fraction of the time it would take to open the PDF over the Internet. logo  Take Pride in America button