Verification of Hazard Map Based on the Results of Microtremor Measurement
Fumiaki UEHAN, Kenji TOMITA
The hazard map that indicates the distribution of weak points against a hypothetical earthquake is useful for grasping both the general tendency and local characteristics of vulnerability. In the past, hazard maps were based on empirical model that were derived from the analysis of past earthquake damages. On the other hand, the hazard map using microtremors is expected to be effective in selecting actual weak points, because it can judge the vulnerability from the measured characteristics of various objects. In this paper, the technique for making a hazard map based on the results of microtremor measurement was introduced. Furthermore, the efficiency of its vulnerability indices were verified by correlational analysis with the damage distribution of the 1995 Hyogoken-Nanbu Earthquake.