Start Date

5-2020 12:00 AM

Description

A strain deficit of about 10 mm/yr exists across the San Andreas Fault system on the boundary between the North American and Pacific plates. We investigate the role of the Hidden Spring Fault Zone, east of the Salton Sea in Southern California, and related structures in accommodating some of this slip. We compile data from historic and current aerial and satellite imagery, coupled with UAVSAR and LiDAR data have allowed us to identify and map hundreds of new fault segments in the region. Where possible, we correlate some of these data with geologic evidence for the faults. These data emphasize the orientations and potential fault linkages that are vital for a kinematic analysis of the Hidden Spring Fault Zone and in creating a baseline analysis of deformation in a region where large seismic ruptures are likely to occur.

Comments

Due to COVID-19, the Symposium was not able to be held this year. However, papers and posters were still submitted.

Available for download on Saturday, May 01, 2021

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May 1st, 12:00 AM

Using Geologic and Geodetic Analyses to Define the Location, Slip Rate, and Geometry of Off Fault Deformation, Hidden Spring Fault Zone, Southern California

A strain deficit of about 10 mm/yr exists across the San Andreas Fault system on the boundary between the North American and Pacific plates. We investigate the role of the Hidden Spring Fault Zone, east of the Salton Sea in Southern California, and related structures in accommodating some of this slip. We compile data from historic and current aerial and satellite imagery, coupled with UAVSAR and LiDAR data have allowed us to identify and map hundreds of new fault segments in the region. Where possible, we correlate some of these data with geologic evidence for the faults. These data emphasize the orientations and potential fault linkages that are vital for a kinematic analysis of the Hidden Spring Fault Zone and in creating a baseline analysis of deformation in a region where large seismic ruptures are likely to occur.