CASE STUDY ON CHARACTERISTICS OF EFFECT OF DAMAGE REDUCTION MEASURES AGAINST MULTIPLE DISASTERS OF EARTHQUAKES AND FLOODS

Abstract

We applied an analysis method for estimating the potential direct economic damage and death toll caused by multiple disasters of earthquakes and floods. To extract the effects of various measures in the analysis, we used a river about 60 km long as our case study. We assumed a set of multiple disasters in which one of two floods occurs after one of three earthquakes and estimated the damage in the river. We estimated the damage in 120 cases by changing the scales of each earthquake and each flood, the interval between the earthquake and flood, and the needed disaster damage reduction measures.