DEVELOPEMENT OF AN SPGA MODEL FOR THE GENROKU (1703) KANTO EARTHQUAKE WITH CONSIDERATION OF SEISMIC INTENSITY

Abstract

 Nozu et al. have been developing the SPGA model, which is suitable for the simulation of strong ground motions for subduction earthquakes. When the model is applied to a historical earthquake, it is desirable to construct an SPGA model which is consistent with seismic intensity data. In this study, as an example of the application of the SPGA model to a historical earthquake, an SPGA model was developed for the Gneroku (1703) Kanto earthquake taking into account seismic intensity data. The position of SPGA and the parameters were determined using the correlation diagram of seismic prediction and seismic intensity distribution. Proposed source model was found to well explain the seismic intensity data.