Debris flow disaster in Atami, Japan, in July 2021

On the morning of July 3, 2021, a large debris flow occurred at the Aizome River in the Izusan district of Atami, Shizuoka Prefecture, Japan. The debris flow caused extensive damage, causing the death of 26 people, leaving one person missing, and damaging 128 houses (as of October 1, 2021). Consiste...

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Published inInternational Journal of Erosion Control Engineering Vol. 15; no. 1; pp. 1 - 6
Main Authors TAKAYAMA, Shoki, SATOFUKA, Yoshifumi, NISHI, Yotaro, IMAIZUMI, Fumitoshi, KOIKE, Masaru, KATO, Shinyu, SAKAGUCHI, Hiroshi, TANAKA, Takafumi, OSANAI, Nobutomo, KOSUGI, Ken'ichirou, SAKAI, Yusuke
Format Journal Article
LanguageEnglish
Published Tokyo Japan Society of Erosion Control Engineering 06.06.2022
Japan Science and Technology Agency
Subjects
Atami
Damage
Debris flow
Flow characteristics
heavy rainfall
sediment disaster
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ISSN1882-6547
1882-6547
DOI10.13101/ijece.15.1

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Summary:On the morning of July 3, 2021, a large debris flow occurred at the Aizome River in the Izusan district of Atami, Shizuoka Prefecture, Japan. The debris flow caused extensive damage, causing the death of 26 people, leaving one person missing, and damaging 128 houses (as of October 1, 2021). Consistently steep channel gradient from initiation zone to river mouth resulted in the extensive damage along the river. The debris flow was characterized by its high fine-grained content, which may have affected the flow characteristics. The debris flow comprised multiple surges with different flow characteristics.
Bibliography:SourceType-Scholarly Journals-1
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ISSN:1882-6547
1882-6547
DOI:10.13101/ijece.15.1