Heavy Rainfall Disaster in Eastern Japan Caused by Typhoon 0206 from July 9 to 12, 2002

概要

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Typhoon 0206 (CHATAAN) struck the Pacific coast of Japan from July 9 to 12, 2002 and caused heavy rainfall in eastern Japan. In Gifu Prefecture, hourly precipitation of 93mm was recorded on July 10 and the total precipitation was more than 500 mm. The highest accumulated precipitation for approximately the last 20 years was recorded at several observatories in Iwate Prefecture. This rainfall caused 7 deaths, destroyed 39 houses, and inundated some 9,800 houses. The worst damage was in Higashiyama Town, Iwate Prefecture in which twenty-five percent of all the houses were inundated. Residents of that town had had several previous flood experiences, but in spite of those experiences, extensive damage occurred because the water level rose faster than in past flooding. In Ogaki City, Gifu Prefecture, the flooding of the Otani River inundated of 550 houses. The existence of a fuse plug levee of the Otani River in the vicinity of a residential area was blamed. The real time rainfall information and hazard maps developed recently were not sufficiently made use of as indicated by the results of a questionnaire that surveyed the damaged municipalities.
日本自然災害学会の論文