SCEC Award Number 21032 View PDF
Proposal Category Individual Proposal (Integration and Theory)
Proposal Title Roles of foreshocks in triggering large earthquakes and stress drop validation
Investigator(s)
Name Organization
Xiaowei Chen University of Oklahoma
Other Participants Jiewen Zhang
SCEC Priorities 1d, 4a, 5a SCEC Groups Seismology, FARM
Report Due Date 03/15/2022 Date Report Submitted 03/21/2022
Project Abstract
 INTERIM REPORT: Current progress: (1) completed new analysis of stress drop estimates of the 2012 swarm and Ridgecrest foreshocks. (2) preliminary analysis of foreshock stress interactions and spatiotemporal migration pattern. To do: synthesize three foreshock sequences to understand the differences and similarities between different types of sequences, and discuss the roles of "cascading failure" and "aseismic processes" in the triggering process. Anticipated completion date: fall 2021.
Intellectual Merit N/A - project extension requested
Broader Impacts N/A - project extension requested
Exemplary Figure N/A - project extension requested