A Preliminary Critical Causal Analysis on the Mortality Caused by the 2011 East Japan Earthquake Tsunami

Abstract

The tsunami accompanied by the 2011 East Japan Earthquake Disaster killed many people in the 37 municipalities of Iwate, Miyagi and Fukushima Prefectures. Inundated areas’topography, exposure, estimated tsunami and demographic change is vary considerably from one region to another. This paper analyzes the causes of the motality rates of each municipality comparing those inundated area’s characteristics where similar height of tsunami attacked. As the result of this preliminary analyses, we found the municipalities whose motality rate were higher than others in propotion as tsunami height. And we also found the potential field investigation sites where we should intensive field survey on the critical cause of damage.