CONSIDERATION CONCERNING CAUSE OF SHINKANSEN DERAILMENT IN NIIGATAKEN TYUETU EARTHQUAKE

Abstract

The Niigataken tyuetu earthquake of magnitude 6.8 occurred on October 23, 2004, and the cause was considered. The relation between the excellence cycle of the ground compared with H/V and the thickness of the layer of the subsurface layer was clarified. It has been understood that the excellence of the alluvium corresponds to the second peak compared with H/V. Moreover, making the ground nonlinear was admitted from the seismic response analysis in the offing product terrace layer.