地震被害情報の収集体制を考える(C.防災計画と対策)

概要

論文の詳細を見る
In order to cope with affairs efficiently and adequately just after an earthquake, it is necessary for a municipality to grasp arthquake damage information at an early stage. In the 1995 Hyogoken-Nanbu earthquake, many municipalities could not rapidly gather earthquake damage information. Here, we focus on the number of deaths, and investigate main factors to affect time delay in the information collection by municipalities. A change of cumulative number of deaths with time lapse is approximated well with the Weibull distribution. It was found that the shape of this Weibull distribution strongly depends on both seismic intensity and a population. This means mat the collection of earthquake damage information is so efficient as a population is small. Accordingly, it is very important for the efficient collection of information to divide a large area into some small blocks. Furethermore, we can estimate the suitabale areas for effective gathering of disaster information in a stricken area