Reprocessed single channel sparker seismic reflection data offshore central California from USGS field activities S-6-08-SC and S-6-09-SC

The U.S. Geological Survey collected high-resolution single channel minisparker data between Point Sal and Piedras Blancas in 2008 and 2009 with support from the Pacific Gas and Electric (PG&E) CRADA and the USGS Coastal and Marine Geology program. Reprocessing of this data in 2018 improved vertical resolution of the stratigraphy and structural deformation of the original data and was funded by an additional CRADA with PG&E. This work will aid the USGS in reviewing and refining existing interpretations, hazard assessments and development of new hypotheses. Particular targets include the Hosgri-San Gregorio fault system, and the Los Osos, and Shoreline faults. The ultimate goal of this work for both parties is to enhance earthquake hazard assessments by providing a more comprehensive understanding of regional geologic framework, seismic sequence stratigraphy and hazard assessment. These data and information are intended for science researchers, students, policy makers, and the general public.