The Land-falls in KURE City due to the “1967 Heavy Rain”

Abstract

On the 9th of July 1967, there occured many land-falls in KURE city due to the “1967 Heavy Rain”. Geological, geomorphological and climatological factors of this damage were examined.
Most KURE city is located on the deeply weathered and fragile granitic rocks cut into lower erosional surfaces at the heights of 50-70m above sea level. At this occasion the land was saturated with rain water and the heavy rain more than 300mm within two days acted as a trigger. Where the land-falls grew to the mud-flow, the damage was very severe, and where the flow contained boulders, the damage was severest and the landform was changed greatly.