This $203,961 National Science Foundation Project Grant from the Geosciences program (CFDA 47.050) supports research to develop a new 3D velocity and structural model of sedimentary basins in the Los Angeles region. The University of Arizona will receive funding from January 15, 2023 to June 30, 2023 to conduct seismic field experiments using over 700 instruments across 10 lines. This will allow imaging of subsurface structures channeling earthquake waves into downtown Los Angeles at a higher resolution than existing models. The researchers will analyze the dense dataset, refine regional seismic velocity models, and simulate expected ground motions. The new earth models will be made available through an updated Southern California Earthquake Center community velocity model platform. This collaborative research aims to improve seismic hazard assessment in the Los Angeles area through developing a more detailed understanding of wave propagation in the region's basins.
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