SIMULATION OF EARTHQUAKE MOTION DURING THE 2003 TOKACHI-OKI EARTHQUAKE BASED ON ITS STRONG MOTION RECORDS

Abstract

Two techniques for simulation of strong ground motion at arbitrary sites during past specific earthquake are demonstrated. The 2003 Tokachi-oki Earthquake is selected for the case study of the technique. The strong motion records at 20 KiK-net stations were used for estimation of (1)the general spectral characteristic, and (2)the source proces of this earthquake. These two specific information derived from seismic source are incorporated into the strong motion prediction model, EMPR, developed by the authors. The availability of two techniques are examined regarding the ground motion intensity, spectral characteristic, and the envelope pattern of acceleration time histories.