Waveguide or not? Revised ground motion simulations for greater Los Angeles from the M7.8 ShakeOut earthquake scenario
Te-Yang Yeh,
Kim Olsen
Abstract:The ShakeOut scenario of a M7.8 northwestward rupture on the southern
San Andreas fault (SSAF) (Jones et al., 2008) predicted significant
long-period ground motion amplification in the greater Los Angeles, CA,
area, caused by a waveguide from interconnected sedimentary basins.
However, the early ShakeOut ground motion simulations omitted important
model features with immature versions of the velocity structure and
fault geometry. Here, we present 0-1 Hz 3D numerical wave propagation
simulations for the ShakeOu… Show more
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