Point to Note of Site-Specific Ground Motion Prediction Using a Revised Empirical Relation Formula for the Hypothetical Nankai Trough Earthquake

Abstract

A revised empirical relation formula (Okawa et al., 2013) that can calculate seismic ground motions is adopted by Ministry of Land, Infrastructure, Transport and Tourism, as the method to evaluate the long-period ground motions for Nankai Trough earthquake. The authors conducted parametric study about the influence of the selection of the fault model and the site-specific amplification, which are dominant parameters of the method, and compared the calculations to observations and prepared waveforms using revised empirical relation formula. Then, we evaluated the application range and discussed cautionary notes when using this method.