Study on a high-cut filter for strong ground motion prediction

Based on the observed records during the 1995 Hyogo-ken Nambu Earthquake

Abstract

frequency range are examined and high-cut filters with a cut-off frequency, f_maxare proposed for small and large events. The obtained high-cut filter of large event is compared with the filters proposed in previous studies. Moreover, a filter to correct difference of spectral attenuation between small event and large events in high frequency range is proposed. Finally, effects of the proposed filters on strong ground motion prediction are examined through simulations by stochastic Green's function method. The results obtained in this paper may contribute to strong ground motion prediction in high frequency range.