COMPARISON OF TSUBOI' S ATTENUATION EQUATION WITH ANNAKA'S ONE FOR PEAK DISPLACEMENT OF EARTHQUAKE GROUND MOTIONS

Abstract

We investigate two attenuation equations for predicting the peak displacement of earthquake ground motions, which were presented by Tsuboi and Annaka et al. Tsuboi's formula is used for determining Japanese meteorological magnitude, while Annaka's one was presented for predicting the peak ground motions in wide regions including source area. It has been shown that both formulae are coordinated by using the same distance term in each formula.