Disaster Response and Recovery from Long term Flooding Damage

Case study of Kochi City Flooding for Nankai Earthquake Disaster

Abstract

This paper clarifies disaster response and recovery strategies from long term flooding damage after possible Nankai Earthquake Disaster from case studies in Kochi city. Japan has vulnerability suffering from long term flooding because many cities locate in area of below sea level. Tokyo, Nagoya, and Osaka have large below sea level area. Because of climate change, risk of flooding in those areas is becoming higher. In addition to climate change, M8 class earthquake cause land subsidence for fault displacement. Kochi is likely to suffer from that impact for M8 class earthquake called Nankai Earthquake, which might occur with 60% possibility within 30 years. Issues on disaster response and a strategic time line for recovery are clarified based on the analysis on recovery process of historic events, and stakeholder workshop in Kochi.