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Landslide (special) warning area

Update date: April 21, 2023

Sediment disaster warning areas and landslide special warning areas

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.

Number of landslide disaster (special) warning areas (as of March 28, 2020)

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)

Sediment disaster (special) warning area public notice book download

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

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

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

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

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

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

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

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

Click here for the web version of the Inagi Hazard Map

Landslide hazard map

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

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

Inquiries regarding landslide warning areas

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

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

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Get Adobe Acrobat Reader DCDownload Adobe Acrobat Reader DC

Inquiries regarding this page

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

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Inagi City Hall

2111 Higashinagumanuma, Inagi City, Tokyo 206-8601
Office hours: 8:30 a.m. to 5:00 p.m. Main phone: 042-378-2111 Fax: 042-377-4781
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