GENERATION METHOD OF STOCHASTIC GREEN'S FUNCTION CONSIDERING INTO SURFACE WAVES AND SCATTERING WAVES USING RECORDS OF MODERATE-SIZED INTERPLATE EARTHQUAKES ALONG THE SAGAMI TROUGH

Abstract

We revise the generation method of stochastic Green's functions by considering into surface waves and scattering waves as well as direct S-waves using strong motion records of moderate-sized interplate earthquakes along the Sagami Trough. The spectral ratios of later time windows to S-wave windows are modeled by the focal depth and hypocentral distance with site factors. The envelopes of later time windows are modeled based on the scattering theory in which body waves and Rayleigh waves are considered. The stochastic Green's function is generated by adding S-wave windows and the later time windows in the time domain.