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Cliff place selection criteria

Last update date March 6, 2019

Selection criteria of target area announcing evacuation warning with announcement of "landslide alert information"

[selection criteria of target area]
When landslide is generated, based on findings of cliff place which geologic expert carried out, we give remarkable damage to house
We extracted the cliff ground (※ note 1) with possibility and chose the outskirts as area targeted for evacuation warning.

(※ note 1) when landslide is generated, destruction and windowpane of building near cliff cause damage such as the earth and sand flowing in,
Cliff place that damage to affect human life in some cases is assumed

Specifically,

○We analyze factor of landslide, quantity of the earth and sand when cliff collapsed, size of damage to building near the cliff

◆With factor of landslide


◆With quantity of the earth and sand when cliff collapsed
When landslide is generated, we slide down from slope and classify quantity of soil falling with lump in big things and small things

◆With size of damage to building near the cliff
When landslide is generated, we classify in big things and small things of damage whether the earth and sand which collapsed arrive at house

○We confirm distance of having house or not which damage might produce when landslide is generated and cliff place and building
Set range affected by landslide by height or incline of cliff place more finely, is house in each influence range
But, it is confirmed whether there is

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General Affairs Bureau crisis Management Department emergency measures section

Telephone: 045-671-2064

Telephone: 045-671-2064

Fax: 045-641-1677

E-Mail address [email protected]

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