土ど砂しゃ災さい害がい警けい戒かい区く域いき

noun

sediment-related disaster risk area

A legal designation under Japanese law for areas at risk of landslides, debris flows, or slope failures. Used in official contexts such as hazard maps and land-use regulations.

• この地ち域いきは土ど砂しゃ災さい害がい警けい戒かい区く域いきに指し定ていされています。

  This area has been designated as a sediment-related disaster risk area.

• 土ど砂しゃ災さい害がい警けい戒かい区く域いきでは、建けん築ちく制せい限げんがある場ば合あいがあります。

  In sediment-related disaster risk areas, there may be building restrictions.