Ground‐Motion Simulation and Validation of the 2008 Chino Hills, California, Earthquake Using Different Velocity Models

摘要: Abstract We present a set of ground‐motion simulations the 2008 M w  5.4 Chino Hills earthquake using different seismic‐velocity models available for southern California. The are tailored maximum frequency 4 Hz and minimum shear‐wave velocity 200  m/s. use community developed by Southern California Earthquake Center, CVM‐S CVM‐H. In case CVM‐H, we two alternatives, with without considering geotechnical layers (GTL). compare simulation results obtained against each other validate synthetics recordings at more than 300 stations. comparisons used to gain insight into sensitivity differences in make conclusions about strengths model’s description crustal structure GTL region. validation is done goodness‐of‐fit (GOF) criterion. find GOF values show better match frequencies below 1 Hz, within basins, 0.5 Hz general. models, however, do not converge lower 0.5 Hz, areas where model leads always coincide. start deviate significantly from observations above 1 2 Hz, although very good agreement data can still be found individual locations, even higher frequencies. yields best up 0.25 Hz. Our reveal significant ground motion structural representation basins shallow models. This indicates need cross referenced. close offering suggestions on type improvements that could adopted future.