October 2019 Sediment Disaster in the Tohoku Region owing to Typhoon No. 19 (Tyhpoon Hagibis)

Abstract

The large Typhoon No. 19 (Typhoon Hagibis) hit the Izu Peninsula with great force on October 12, 2019, causing record heavy rainfall over a wide area, mainly in eastern Japan. Heavy rainfall warnings were announced in Tokyo and 12 prefectures ; there were numerous slope collapses and debris flows and the largest number of typhoon-related landslides since the beginning of recording the statistics in 1982. The typhoon caused 952 sediment disasters (as of December 24, 2019), with 16 people dead and 1 person missing. Rainfall was concentrated in Iwate, Miyagi, and Fukushima Prefectures in the Tohoku