Ardennes

Recorded Natural Hazards (Géorisques)

It has 447 municipalities and 265,893 inhabitants. Under the seismic zoning in force since 2011, its highest seismicity is low (zone 2 of 5). A natural disaster has been declared 2,436 times since 1982 (one declaration per municipality and decree), mostly for floods (1,885) and ground movements (455). The most recent was signed on 21 April 2025. 10 municipalities have a high radon potential (category 3), home to 1% of inhabitants. 115 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

• 1999Floods and Mudflows · 25 December 1999449 municipalities
• 1999Ground Movements · 25 December 1999449 municipalities
• 1995Floods and Mudflows · 17 January 1995225 municipalities
• 1993Floods and Mudflows · 20 December 1993184 municipalities
• 1993Floods and Mudflows · 19 December 1993182 municipalities
• 1993Floods and Mudflows · 11 January 1993118 municipalities

Most Frequently Affected Municipalities

• 21Sedan
• 20Charleville-Mézières
• 19Warcq
• 18Villers-Semeuse
• 16Signy-l'Abbaye
• 16Nouzonville
• 16Revin
• 16Bazeilles

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