GROUND MOTION ESTIMATION FOR A SAME GRID SQUARE IN CENTRAL MIYOSHI CITY, TOKUSHIMA PREFECTURE, JAPAN, DUE TO A SCENARIO EARTHQUAKE WITH M_W9.0 ALONG THE NANKAI TROUGH BASED ON THE SMGA MODELS CONSIDERING LOCAL SITE EFFECTS

Abstract

 Generally, prediction of ground motions have been carried out for every grid square by NIED, Japanese Cabinet Office, Local Government Office and so on. In other words, it is assumed that the ground shaking characteristics in the grid square of interest is almost uniform in the ground motion prediction. In this study, ground motion estimation with high dense spatial location for a 3rd grid square with almost 1 km², in central Miyoshi City, Tokushima Prefecture, Japan, during the Nankai Trough scenario earthquake are carried out based on the SMGA models considering the empirical site amplification and phase effects.