Study of sediment-related disasters caused by recent heavy rainfall in northern Northeast Japan considering late Quaternary landform development

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Key Points

The study aims to analyze sediment-related disasters in northern Northeast Japan due to increased heavy rainfall, focusing on the geomorphological context.
Examined sediment disasters in northern Northeast Japan from a Late Quaternary perspective.
Analyzed specific heavy rainfall events, including the August 2016 event in the Kitakami Mountains and the 2021 event in the Shimokita Peninsula.
Investigated landform development and hydrological processes associated with sediment movement.
Significant sediment movement and deposition observed during the 2016 heavy rainfall despite notable valley collapses.
Frequent collapses at the volcanic foothills' terrace edges during the 2021 heavy rainfall attributed to specific geological conditions.
Study findings contribute valuable information for disaster prevention and mitigation strategies.

Research examines heavy rainfall-induced disasters in northern Northeast Japan, highlighting geomorphological influences.

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Koiwa et al. (2026) studied this question.

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