Material and geometrical properties of the subsurface strongly influence fault-zone dynamics, but are impossible to observe directly. Elastic waves produced by earthquakes, man-made energy sources and environmental disturbances, however, offer diverse signals which can be used to constrain these properties. Imaging fault-zone structures using these signals requires techniques as diverse as the signals themselves and the geometries of observing networks. Robustly interpreting the resulting images challenges seismologists, but also presents information that will help unravel the physics behind hazardous ruptures. In this session, we welcome all contributions pertaining to seismic imaging of fault zones––especially new and improved techniques, case studies and multi-disciplinary surveys.
Conveners
Malcolm C. A. White, University of Southern California (malcolm.white@usc.edu); Hongjian Fang, Massachusetts Institute of Technology (hfang@mit.edu)
Oral Presentations
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Characterizing the Uppermost 100 M Structure of the San Jacinto Fault Zone Southeast of Anza, California through Joint Analysis of Geologic, Topographic, Seismic and Resistivity Data