Fig. 7: Effect of slip distribution constraint (Test III).

Here we assume a uniform spatial probability density function for the subsources instead of constraining them by the GNSS slip inversion. a HIC model slip distribution obtained by summing all the subsource contributions. b Horizontal peak ground velocities (GMRotD50 PGV) interpolated from simulated seismograms at virtual stations; compare with Fig. 4a. Black line shows the vertical fault plane. Real stations are shown by triangles color-coded by observed PGV. c Modeling spectral acceleration (SA) bias as a function of period (gray lines). Mean and ±1 standard deviation over stations are shown by green solid and dashed lines, respectively. The red line is the mean SA bias for the preferred model (Fig. 3b) for reference.