Mixing Method of Geomorphologic Classification and Borehole Data for Estimation of Average Shear-Wave Velocity and Distribution of Peak Ground Motion during the 2004 Niigata-Chuetsu Earthquake

Abstract

Estimation of amplification on surface soil is very important in order to estimate detail distribution of earthquake ground motion for making hazard map or realtime damage estimation. The estimation methods are classified into geomorphologic classification and borehole data. Both has good and bad points. This problem has been an either-or choice. A new method to combine geomorphologic classification and borehole data are proposed in this paper and distribution of peak ground motion during the 2004 Niigata-Chuetsu earthquake is estimated.