Cher

Recorded Natural Hazards (Géorisques)

It has 286 municipalities and 298,660 inhabitants. Under the seismic zoning in force since 2011, its highest seismicity is low (zone 2 of 5). A natural disaster has been declared 2,451 times since 1982 (one declaration per municipality and decree), mostly for floods (1,058) and drought (799). The most recent was signed on 23 March 2025. 4 municipalities have a high radon potential (category 3), home to 1% of inhabitants. 98 municipalities are covered by an approved natural hazard prevention plan.

Seismicity Zones

Number of municipalities in each zone of the regulatory seismic zoning (from 1, very low, to 5, high).

Natural Disasters Declared Since 1982

Declarations per five-year period.

Most Widespread Events

• 1999Ground Movements · 25 December 1999287 municipalities
• 1999Floods and Mudflows · 25 December 1999287 municipalities
• 1982Storms · 6 November 1982287 municipalities
• 1982Floods and Mudflows · 6 November 1982287 municipalities
• 2019Drought (Clay Shrinkage) · 1 July 2019153 municipalities
• 2018Drought (Clay Shrinkage) · 1 July 2018119 municipalities

Most Frequently Affected Municipalities

• 19Vierzon
• 17Bannay
• 17Graçay
• 17Méreau
• 17Méry-sur-Cher
• 16Ids-Saint-Roch
• 16Saint-Satur
• 15Bourges

Hazards Listed by Municipality

Number of municipalities exposed to each natural hazard according to the departmental major risks file.

Hazards at a specific address on Géorisques