Sediment disaster (special) warning area

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

Sediment disaster warning area (common name: Yellow Zone)
Areas of land where it is recognized that there is a risk of harm to the lives or bodies of residents in the event of a sediment-related disaster, and where a warning and evacuation system should be developed in order to prevent sediment-related disasters.

Sediment disaster special warning area (common name: red zone)
Areas where it is recognized that there is a risk of significant damage to the lives or bodies of residents, etc. due to damage to buildings in the event of a sediment-related disaster.

Landslide warning areas : 280 locations (275 steep slope collapses, 5 debris flows)
Sediment disaster special warning areas : 221 locations (217 steep slope collapses, 4 debris flows)

You can also check the sediment disaster (special) warning areas on the web version of the Inagi Hazard Map.

You can search for places in Tokyo that are at risk of landslide disasters on the map of landslide warning areas (Tokyo Metropolitan Government Bureau of Construction website).

Inquiries: Tokyo Metropolitan Government Bureau of Construction, River Department, Planning Section