SCEC Award Number 12182 View PDF
Proposal Category Collaborative Proposal (Special Fault Study Area)
Proposal Title Workshop on San Gorgonio Pass: Structure, Stress, Slip, and the Likelihood of Through-Going Rupture
Investigator(s)
Name Organization
Doug Yule California State University, Northridge Michele Cooke University of Massachusetts Amherst David Oglesby University of California, Riverside
Other Participants
SCEC Priorities 4a, 4e, 4c SCEC Groups SoSAFE, CME, WGCEP
Report Due Date 03/15/2013 Date Report Submitted N/A
Project Abstract
 This workshop explored the San Gorgonio Pass "knot" region as a candidate for a SCEC Special Fault Study Area and outlined a plan to fill existing knowledge gaps. Specific topics included the geometry of active subsurface faulting, the potential for earthquakes on the complex fault system in this region, and the likelihood of a ‘super-earthquake’ that would propagate along the San Andreas system through the pass, leading to a very large-magnitude and damaging event. The workshop brought together geoscientists from a wide spectrum of interests including tectonic geomorphology, structural geology, mechanical modeling, rupture modeling, gravity and magnetic modeling, seismology, geochronology, geodesy, and fault and rock mechanics. The first day was a blend of short science talks on case studies with discussions of specific topics. On the second day, we took a field trip to view key sites in San Gorgonio Pass.
Intellectual Merit Knowledge gaps for the San Gorgonio pass were identified at the workshop. We outlined a science plan that could address major issues within the pass within 4 years.
Broader Impacts The science plan incorporates every discipline within the SCEC community and a vast range of expertise. If the San Gorgonio Pass is established as a special study area, many PIs and students will be supported to work in this area.
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