Gironde

Recorded Natural Hazards (Géorisques)

It has 534 municipalities and 1,690,493 inhabitants. Under the seismic zoning in force since 2011, its highest seismicity is low (zone 2 of 5). A natural disaster has been declared 7,676 times since 1982 (one declaration per municipality and decree), mostly for floods (3,292) and drought (1,766). The most recent was signed on 18 January 2026. 1 municipalities have a high radon potential (category 3), home to 0% of inhabitants. 244 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

• 1999Wave Impact, Coastal Flooding · 25 December 1999535 municipalities
• 1999Ground Movements · 25 December 1999535 municipalities
• 1999Floods and Mudflows · 25 December 1999535 municipalities
• 2009Wave Impact, Coastal Flooding · 24 January 2009535 municipalities
• 1982Storms · 6 November 1982535 municipalities
• 1982Floods and Mudflows · 6 November 1982535 municipalities

Most Frequently Affected Municipalities

• 46Bordeaux
• 41Mérignac
• 35Bègles
• 35Villenave-d'Ornon
• 32Cadaujac
• 32Gradignan
• 31Artigues-près-Bordeaux
• 31Latresne

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