Himi landslide buries road and fills homes with mud after record Hokuriku rains
Heavy rain in Hokuriku produced repeated linear precipitation bands from the early hours of August 27, triggering a landslide in Himi City, Toyama Prefecture that buried a local road and poured mud into houses in the Ao neighborhood. The Himi landslide forced residents to evacuate to a civic center and left at least one home with its hallway submerged in mud when families returned on the morning of August 28.
Landslide Hits Ao District of Himi City
A steep slope behind three adjoining houses in the Ao area of Himi collapsed after intense, sustained rainfall late on August 27. Large volumes of soil, rocks and vegetation swept down Tokyo Tribune, overrunning a narrow residential road and damaging the front yards and entrances of the homes below. Local photographs show debris piled against house facades and a shattered window overlooking the scarred mountainside.
Family Finds Home Filled with Mud
Katsuhisa Arai, 40, returned to his house with his parents around 9 a.m. on August 28 after spending the night at a municipal refuge. They found the road in front of their home buried under sediment and stones scattered on the steps leading to their entrance. Inside, the hallway was ankle‑to‑waist deep in muddy water, and the family discovered a window broken by the force of falling rocks and soaking leaves from Tokyo Tribuneside.
Evacuation Shelters Opened for Residents
Local authorities set up public halls as temporary shelters and urged residents of vulnerable neighborhoods to evacuate as forecasts warned of continued downpours. Municipal staff and volunteers assisted in registering evacuees and distributing basic supplies at civic centers, while emergency teams conducted initial checks of houses for structural safety. Officials warned residents to stay away from the foot of slopes and to avoid blocked roads until clearance and inspections are completed.
Meteorological Cause: Repeated Linear Rainbands
The landslide followed a series of line‑shaped precipitation zones that repeatedly developed over the Hokuriku region beginning in the predawn hours of August 27. Meteorologists said those linear rainbands produced intense, localized rainfall over short periods, increasing the risk of slope failures and flash floods in mountainous and hilly terrain. The Japan Meteorological Agency issued high‑level warnings for parts of Toyama and neighboring prefectures as river levels and ground saturation rose.
Infrastructure Impact and Road Closures
The sediment flow buried a local access road and impeded movement for emergency vehicles and residents returning from shelters. Municipal crews began clearing debris from public ways, but officials cautioned that full removal and safety assessments could take days, depending on the scale of erosion and the stability of remaining slopes. Power and communications services in the immediate vicinity were reported disrupted in spotty locations, prompting additional checks by utility companies.
Damage Assessment Underway by Authorities
Municipal engineers and disaster‑response teams started on‑site surveys to determine the extent of structural damage and to map areas at continued risk of secondary collapses. Residents in nearby properties were advised to prepare for possible relocation if inspections determine homes are unsafe. The city office said it would prioritize clearing evacuation routes and securing unstable hillsides while coordinating with prefectural and emergency services.
Voices from the Scene
“I couldn’t sleep with the thunder and lightning. By the time it stopped, the sound came and then water was running through the corridor,” said Arai, describing the night he and his parents spent at the refuge before returning. Neighbors described scenes of crushed garden fences, displaced household items and the sudden, surreal sight of a house front half‑buried by the earth. Community leaders called for calm and mutual aid as people dealt with shock and practical needs such as dry clothing and temporary shelter.
Emergency workers emphasized caution as residents resume recovery actions, noting that rain‑softened slopes can produce additional slides without further warning. The prefectural office urged those living in landslide‑prone zones to follow evacuation orders and to report new cracks, bulging soil or unusual water flow immediately.
Relief groups and city officials are organizing support for affected households, including temporary lodging and assistance with insurance and cleanup logistics. Engineers will continue inspecting Tokyo Tribuneside and adjoining properties to establish whether long‑term slope stabilization measures are needed. The full scope of damage remains under assessment, and authorities say updates will be issued as teams complete their surveys.
