Landslide (special) warning area

On March 15, 2019, the Tokyo Metropolitan Government designated Inagi City as a landslide warning area and landslide special warning area .

Landslide warning area (commonly known as yellow zone)
Areas where it is recognized that there is a risk of harm to the lives or bodies of residents in the event of a landslide, and where a warning and evacuation system should be specifically developed to prevent landslides.

Sediment disaster special warning area (commonly known as red zone)
Areas where it is recognized that there is a risk of damage to buildings and significant harm to the lives or bodies of residents, etc. in the event of a landslide.

Landslide warning areas : 280 locations (275 locations due to collapse on steep slopes, 5 locations with debris flows)
Landslide special warning areas : 221 locations (217 locations due to collapse on steep slopes, 4 locations with debris flows)

Landslide (special) warning areas can also be confirmed on the web version of Inagi Hazard Map.

You can search for landslide-prone areas in Tokyo using the Landslide Warning Area Map (Tokyo Metropolitan Government Bureau of Construction website).

Contact: Tokyo Metropolitan Bureau of Construction, River Department Planning Division, Landslide Countermeasures Section (Tel: 03-5320-5394/5429)