Estimation of strong ground motion during the 1923 Konto earthquake considering effects of 3D basin structure

本研究是在1923年期间估计Kanto平原上的强烈地面运动对Kamo地震的影响，对该地区的三维不规则h* 结构。首先，我们构建了一个基于微反射阵列测量的Kiinto基础的三维S波速度模型。然后，序列波p** 序列和扩增在基础上使用观察到的地震记录进行了调查。在一个周期范围内长4秒的表面波传播的具体、复杂的特征被揭示出指标对基底流感的强烈影响。我们，下一个，模拟地震地面运动观察到的轮胎在这个研究中使用有限的差异代码开发了小型和中等的活动。复杂传播的特点是高质量的重建，当我们使用3D S波速度模型时。同样的模拟程序被应用于估计1 - 23 Knnlo地震的强烈地面运动。

This study was conducted aiming at estimating strong ground motion in the Kanto plain during the 1923 Kamo earthquake considering effects of threc-dimensionally irregular h*ucture in the area. First, we constructed a 3D S-wave velocity model for the Kiinto basin from microlremor array measurements. Then, characteristics of seismic wave p**pagation and amplification in the basin were investigated using observed earthquake records. In particular, complex features of surface wave propagation in a period range longer than 4 seconds was revealed indicating strong effects of basinftiruciure. We, next, simulated earthquake ground motion observed in the tires during small and moderate events using finite difference code developed in this study. The complex propagation features were qualitatively reconstructed, when we used the 3D S-wave velocity model. The same simulation procedure was applied to estimate strong ground motion of the 1ー23 Knnlo earthquake.