Lessons Learned from the 2018 Japan Floods

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In June and July, parts of western Japan were hit by torrential rains, with some regions experiencing record-breaking totals of more than 1,000 millimeters (39 inches) of precipitation in only a few days. The heavy rains led to widespread floods and mudslides throughout the country as rivers broke through embankments and floodwaters reached more than 16 feet above normal levels in some areas, forcing millions to evacuate. At least 225 people were killed in the disaster, making it Japan’s deadliest flood in 36 years.

Catastrophe modeler AIR Worldwide estimated insured losses from the disaster to be between 284 billion Japanese yen ($2.6 billion) and 423 billion Japanese yen ($4 billion). These numbers only account for residential, commercial, industrial and automobile property losses, however, and do not factor in business interruption, losses to land and infrastructure, construction and erection all-risk, marine hull and marine cargo insurance losses, and demand surge