Strong Motion Simulation for the Foreshock of the 2004 Southwest-off Kii Peninsula Earthquake Based on Pseudo Point-source Model

Abstract

Waveform inversion with empirical Green's functions was conducted for the foreshock of the 2004 southwest-off Kii Peninsula earthquake to reveal the slip and slip velocity distribution. Then, a pseudo point-source model was developed for the earthquake, based on the results of the waveform inversion. The pseudo point-source model can reproduce strong ground motions, not only at relatively near-source stations but also at remote stations as long as it is combined with an appropriate path effect model.