NONLINEAR SOIL RESPONSE DUE TO THE 2016 CENTRAL TOTTORI EARTHQUAKE

Abstract

 An earthquake (M_j6.6) occurred in central Tottori prefecture in Japan on October 21, 2016. We investigated nonlinear soil response based on strong ground motion of K-NET, KiK-net station (NIED), local government observation station in Tottori prefecture and temporary observation station by Tottori University. In this study, we calculated a nonlinear soil response due to this earthquake using an index for easily evaluating the degree of nonlinear response. In addition, we compared the index with indicators of ground motion and subsurface structure. As a result, we grasped a characteristics of the nonlinear ground response due to this earthquake.