STRONG MOTION ESTIMATION AT THE GENKAI FISHING PORT DAMAGED BY THE 2005 WEST OFF FUKUOKA PREFECTURE EARTHQUAKE (M_J7.0) BASED ON EMPIRICAL SITE AMPLIFICATION AND PHASE EFFECTS

Abstract

 Enormous damage occurred to the fishing port facilities and natural slopes behind the port in Genkai Island during the 2005 west off Fukuoka prefecture earthquake (M_J7.0). The evaluation of the strong seismic motion is very important to clarify the failure mechanism. In this study, seismic waveform at this site was estimated based on empirical site amplification and phase effects. The estimated seismic waveform is useful in the detailed study of seismic performance evaluation.