U.S. Geological Survey Open-File Report 02225
Data from Theodolite Measurements of Creep Rates on San Francisco Bay Region Faults, California: 19792001
Jon S. Galehouse
|Locations of alinement arrays. Regular arrays shown as triangles, afterslip arrays on Hayward Fault shown as dots. P, Point Pinole.|
A more recent version of this information is available at http://pubs.usgs.gov/of/2009/1119/. This old report is for historical interest only.
My purpose is to make our creep data on San Francisco Bay region active faults available to the scientific research community. My student research assistants and I measured creep (aseismic slip) rates on these faults from 1979 until my retirement from the project in 2001. These data are further described in my final technical report as principal investigator, which summarizes results from 22 September 1979 through 28 February 2001 (Galehouse, 2001). We made over 2,600 creep measurements, about one-third in the ten years prior to the Loma Prieta earthquake (LPEQ) and two-thirds in the 11.4 years following it. The measurements are continuing to be made by members of the Geosciences Department at San Francisco State University (SFSU) under the direction of Karen Grove and John Caskey. A complete analysis of our results obtained on the Hayward fault is presented in Lienkaemper, Galehouse, and Simpson (2001). A formal report based on the entire San Francisco Bay region data set is in preparation.
|File Name||File Type and Description||File Size
|HaywardFault.xls||Data base of measurements of creep rates at sites along the Hayward Fault, in Microsoft Excel workbook format||283|
|SFBayRegion.xls||Data base of measurements of creep rates at sites throughout the entire San Francisco Bay region, in Microsoft Excel workbook format||443|
|HaywardFault.tar.gz||Compressed tar file of tab-delimited raw data from measurement sites along the Hayward Fault||5
|SFBayRegion.tar.gz||Compressed tar file of tab-delimited raw data from measurement sites throughout the entire San Francisco Bay region||34
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