Val-de-Marne

Recorded Natural Hazards (Géorisques)

It has 47 municipalities and 1,426,929 inhabitants. Under the seismic zoning in force since 2011, its highest seismicity is very low (zone 1 of 5). A natural disaster has been declared 625 times since 1982 (one declaration per municipality and decree), mostly for floods (348) and drought (222). The most recent was signed on 15 December 2024. 41 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 199947 municipalities
• 1999Ground Movements · 25 December 199947 municipalities
• 1988Floods and Mudflows · 23 July 198842 municipalities
• 2021Floods and Mudflows · 19 June 202132 municipalities
• 2003Drought (Clay Shrinkage) · 1 July 200323 municipalities
• 2018Floods and Mudflows · 15 January 201819 municipalities

Most Frequently Affected Municipalities

• 24Sucy-en-Brie
• 22Villecresnes
• 21Fresnes
• 21La Queue-en-Brie
• 20Champigny-sur-Marne
• 20Villeneuve-Saint-Georges
• 19Chennevières-sur-Marne
• 18L'Haÿ-les-Roses

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