Typhoon Hagibis struck Japan on October 12–13, 2019. There was substantial damage over a wide area including the Tohoku region. In particular, Marumori Town, an urban area in Miyagi Prefecture that includes a town hall, was flooded due to heavy rain. The maximum cumulative rainfall and hourly rainfall measured in the town were over 600 and 70 mm, respectively. Heavy rain caused river flooding and landslides throughout the town, resulting in 10 deaths and one missing person. There was also substantial damage to the infrastructure, such as roads, railways, and river levees. The authors performed a field survey immediately after the disaster, and analyzed the observed data. Most levee breaches occurred due to overflow. A breached levee that failed in an unusual direction, namely, a failure which took place from the landside toward the waterside, was also observed. Landslides were not only caused by the amount of rainfall, but also by geological and topographical factors. Roads and railways were damaged by both river flooding and landslides. While both river flooding and landslides occurred in the Usudaira community, which is in the middle reaches of the Gofukuya River, there were no deaths or missing persons. This should be an important case for future disaster mitigation.

台风哈吉比斯于2019年10月12日至13日袭击了日本。在包括东北地区在内的广大地区都遭受了严重破坏。尤其是宫城县市区内包括市政厅的丸森町，由于大雨而被洪水淹没。该镇的最大累计降雨量和每小时降雨量分别超过600毫米和70毫米。大雨在整个城镇造成了河水泛滥和山体滑坡，导致10人死亡和1人失踪。道路，铁路和河堤等基础设施也遭到了严重破坏。作者在灾难发生后立即进行了现场调查，并对观察到的数据进行了分析。大多数堤防违规事件是由于溢出造成的。一条被破坏的堤坝，朝不寻常的方向倒塌，即从陆地向水边倒塌，也被观察到。滑坡不仅是由降雨引起的，而且是由地质和地形因素引起的。道路洪水和河道滑坡都破坏了公路和铁路。在高福屋河中游的乌斯平拉社区发生了河水泛滥和山体滑坡，但没有死亡或失踪人员。这应该是将来减轻灾难的重要案例。