새로운 지침을 반영한 임원항 재해정보도 작성

Abstract

Tsunami, a long-period oceanic wave mainly caused by an undersea earthquake, is probably one of the most devastating natural hazards. These tsunamis are frequently occurred around the Pacific Ocean rim including East Sea. The most plausible and frequent choice for tsunami hazard mitigation is to generate a tsunami hazard map based on numerical simulations. Imwon Port located at the Eastern Coast of the Korean Peninsula is one of the most vulnerable places exposed to unexpected tsunami attack. There were three human-being casualties (one was killed, two were missed) and property damage during the Central East Sea Tsunami event occurred on May, 1983. In this study, the tsunami hazard map at Imwon Port is generated based on probable maximum tsunamis. The probable maximum tsunamis consist of three historical tsunamis and eleven virtual tsunamis. To reflect the distinct tsunami characteristics of East Sea, a dynamically linked propagation and inundation model was used. Flow resistance coefficients were applied to simulate the inundation area precisely. Shelters and evacuation routes were determined based on selecting criteria and field survey. The developed tsunami hazard map can be used by a local authority in case of real tsunami attacks