1992 Volume 8 Pages 225-230
Slides showing past coastal disasters collected by Prof. O. Toyoshima were analyzed. 378 pictures were selected. All photos were classified into four categories; (1) Disasters due to tsunami, storm surges and high waves and countermeasures, (2) Beach erosion and damage of coastal facilities, (3) Sea cliff erosion, and (4) Coastal utilization. Damaging process of coastal revetments is revealed for a typical example.