Quantitative Analysis of an Effect of Population Induction on Disaster Reduction and a Possibility for the Change of Earthquake Insurance

Abstract

Considering the situation that the population of Japan is declining now and in the future, population induction from high disaster risk area to low disaster risk area is a realistic way to decrease the amount of damage by the future hazard. And when we can reduce future damage, there is some possibility to change the rate of Japanese earthquake insurance system, which includes now a kind of inequality among the people exposed to the different risk of disaster. The aim of this study is to check these effects of population induction. The results show that population induction can decrease most of the damage in year 2040 and that the rate can be much cheaper though the system is changed in proportion to the risk when it will be done considering the avoidance of earthquake and tsunami.