Elizabeth M. Stone

Thumbnail image of Recent Rupture History of the San Andreas Fault Southeast of Cholame in the Northern Carrizo Plain, California journal article

We conducted a paleoseismic study on the San Andreas fault (SAF) southeast of Cholame, California, to investigate the record of earthquakes along an 80-km paleoseismic data gap between Parkfield and the Carrizo Plain.

Thumbnail image of Displacement across the Cholame Segment of the San Andreas Fault between 1855 and 1893 from Cadastral Surveys journal article first page

Changes since 1855 in reported section-line lengths and positions of survey monuments that span the San Andreas fault (SAF) were used to measure displacement interpreted to be from the 1857 Fort Tejon earthquake in south-central California. In 1855–1856 James E. Freeman established township and range lines across the SAF between Rancho Cholame and the northern Carrizo Plain. At least 26 1-mile sections lines spanned the SAF in the area between present-day California Highways 46 and 58. Each section line was marked by monuments at the midpoint and endpoints.

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