SCEC Award Number 09204 View PDF
Proposal Category Individual Proposal (Data Gathering and Products)
Proposal Title Slip per event and confirmation of the recurrence interval on the San Andreas fault at the Coachella paleoseismic site.
Investigator(s)
Name Organization
Ray Weldon University of Oregon
Other Participants Tom Fumal � USGS (funded internally by USGS)
Belle Philibosian � Caltech (requesting only field expenses on UofO budget)
SCEC Priorities A1 SCEC Groups Geology, SoSAFE
Report Due Date 02/28/2010 Date Report Submitted N/A
Project Abstract
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Intellectual Merit We explored a site near Coacheall, CA, near where I-10 crosses the San Andreas fault to extend the local paleo-earthquake record to at least 3000 years, determine the slip rate over the past 3-4,000 years, and attempt to determine slip per event for the past ~5 events. To date, we have established that an excellent ~3000 year stratigraphic and structural record exists at this site and we have established a very preliminary slip rate of somewhat less than 30 mm/yr.
Broader Impacts This project involved graduate and undergraduate students. The benefits to society include better characterizing the seismic hazard on what is believed to be the most "overdue" portion of the San Andreas fault.
Exemplary Figure N/A