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Sediment disaster (special) warning area

Updated: April 21, 2023

Landslide Warning Area and Landslide 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 disaster (special) number of warning areas (as of March 28, 2023)

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)

Landslide disaster (special) warning area official publication download

File Download Opens in a new window.From Nagamine 1-chome to 3-chome, Wakabadai 1-chome, Sakahama (PDF: 699KB)

File Download Opens in a new window.From 2, Nagamine, 1, Wakabadai to 4, Sakahama (PDF: 2,591KB)

File Download Opens in a new window.Sakahama, 2, Wakabadai, 1, Hirao (PDF: 2,405KB)

File Download Opens in a new window.Entire Hirao (PDF: 715KB)

File Download Opens in a new window.Daimaru, Koyodai 4-chome, Koyodai 6-chome (PDF: 2,067KB)

File Download Opens in a new window.Daimaru/Koyodai 4-chome (PDF: 624KB)

File Download Opens in a new window.Koyodai whole area, Hyakumura, Daimaru (PDF: 2,455KB)

File Download Opens in a new window.Momomura, Yanoguchi (PDF: 682KB)

File Download Opens in a new window.Yanoguchi (PDF: 684KB)

File Download Opens in a new window.4, Wakabadai (PDF: 1,102KB)

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

Click here for the web version of Inagi Hazard Map

Landslide warning area maps

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).

Link to external site Opens in a new window.Landslide warning map (external link)

Inquiries about landslide warning areas

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

Link to external site Opens in a new window.Tokyo Metropolitan Government Bureau of Construction homepage (external link)

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Inquiries about this page

Inagi City Fire Department Headquarters Disaster Prevention Section
2111 Higashi Naganuma, Inagi City, Tokyo (Inagi Fire Station)
Phone: 042-377-7119 Fax: 042-377-0119

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Inagi City Hall

2111 Higashi Naganuma, Inagi City, Tokyo 206-8601
Open agency hours: 8:30 a.m. to 5:00 p.m. Main phone number: 042-378-2111 Fax: 042-377-4781
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