SCEC Award Number 06066 View PDF
Proposal Category Individual Proposal (Integration and Theory)
Proposal Title The Transition from Foreshock to Main shock to Aftershock in California and Japan
Name Organization
John E. Vidale University of California, Los Angeles
Other Participants Zhigang Peng (postdoc, UCLA)
Clara Yoon (undergraduate, UCLA)
Katie Boyle (undergraduate, UCLA)
SCEC Priorities SCEC Groups FARM, Source Physics, GM
Report Due Date N/A Date Report Submitted N/A
Project Abstract
Observations of earthquake triggering, especially the transition from foreshock to main shock to aftershock, provide a useful tool to test various models of earthquake interaction, and to constrain the physics of earthquake rupture nucleation, propagation, and arrest. Taking advantage of recent dramatic improvements in earthquake relocation accuracy allowed by waveform cross-correlation [e.g., Shearer et al., 2005], we propose to systematically examine the underlying driving forces for the space-time evolutions of seismicity around numerous small main shock ruptures in California and Japan.