Abstract: Numerical simulation from wave equations is a valid means of studying seismic wave propagation. In this paper, the pseudospectral method by the wave equations of inhomogeneous elastic isotropic media is developed and the stable conditions for it are given. This method is used to simulate a real complex structure, the shot records are precisely gained, with abundant wave field features. The case study shows that this method is more suitable for simulation of seismic wave propagation in complex geologic structures.

Key words: seismic wave, structure, model, numerical simulation