Abstract
We have developed a strong motion simulator to predict earthquake disaster in a wide region including large cities. This simulator has the merit that can efficiently execute the following. (1) A large scale 3-D underground structure is modeled by GIS technology. (2) Generation of ground motion by fault destruction and seismic wave propagation are calculated by a voxel FEM with parallel processing. (3) The realistic strong ground motion is obtained by combining short period motion using the statistical Green's function and multiplying the surface ground amplification factor. The utility of this simulator is shown in this paper through the analysis of the Kanto earthquake in 1923.
