Salton Trough Deformation in GeoGateway Tools, UAVSAR and GeoFEST

Jay W. Parker, Gregory A. Lyzenga, Andrea Donnellan, Margaret T. Glasscoe, Marlon E. Pierce, Jun Wang, Magali Barba, & Kristy F. Tiampo

Published August 15, 2018, SCEC Contribution #8711, 2018 SCEC Annual Meeting Poster #142

The southern Salton Trough is the best observed high-deformation zone on the western North American Plate boundary. The GeoGateway toolset and data portal allows access to several measures of deformation as customized layers in a Google Maps environment. Of particular interest for the Salton Trough are UCERF faults, USGS catalog seismicity, UAVSAR repeat-pass interferograms, GNSS station jumps, trends, and series, experimental forecast contours, nowcasting metrics including local Gutenberg Richter plots, and (imported via KML) interferogram-based surface fractures. Analysis of these data shows a possible Cerro Prieto fault precursor to the EMC 2010 Mw7.2 earthquake, distributed EMC-induced deformation in the Imperial Valley, triggered slip on major regional faults including the far-south San Andreas, a rich network of 1-10 cm slipping faults in the Yuha Desert, long-term afterslip in the Ocotillo region, and measure of seismic and aseismic faults slipping in the Brawley Swarm. Finite element modeling of the main faults is carried out with the GeoFEST modeling system, to be expanded for Green’s function inversions of slip.

Key Words
Salton Trough, UAVSAR, Interferogram, Deformation, GeoGateway

Citation
Parker, J. W., Lyzenga, G. A., Donnellan, A., Glasscoe, M. T., Pierce, M. E., Wang, J., Barba, M., & Tiampo, K. F. (2018, 08). Salton Trough Deformation in GeoGateway Tools, UAVSAR and GeoFEST. Poster Presentation at 2018 SCEC Annual Meeting.

Related Projects & Working Groups
Tectonic Geodesy