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When large-scale earthquake disasters occur, the damage tends to impact elderly people more significantly than younger people. Generally speaking, as people age, they become physically and mentally weaker, and their risk of death increases. The results of previous studies show that the death toll following earthquake disasters was influenced by the age and gender of the affected population. However, that influence has not been quantitatively assessed. In this paper, we evaluate human damage as being a calculation formula based on the age structure of the population of a large-scale earthquake disaster area. On the occasion of an evaluation of the human damage, we showed disaster area population definitely. We found a correlation between the death toll caused by an earthquake and the age structure of the given population. The total expected death toll of future earthquakes was calculated using current population data, and we applied this formula to the cases of a future Tokyo inland quake.

AN APPROACH TO EVALUATING HUMAN DAMAGE BASED ON THE AGE STRUCTURE OF POPULATIONS IN THE EVENT OF LARGE-SCALE EARTHQUAKE DISASTERS