Lot-et-Garonne

Recorded Natural Hazards (Géorisques)

It has 319 municipalities and 333,602 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 4,202 times since 1982 (one declaration per municipality and decree), mostly for floods (2,048) and drought (1,303). The most recent was signed on 8 July 2025. 90 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

• 2009Floods and Mudflows · 24 January 2009319 municipalities
• 1999Floods and Mudflows · 25 December 1999317 municipalities
• 1999Ground Movements · 25 December 1999317 municipalities
• 1982Storms · 6 November 1982317 municipalities
• 1982Floods and Mudflows · 6 November 1982317 municipalities
• 1989Storms · 6 July 1989170 municipalities

Most Frequently Affected Municipalities

• 27Bon-Encontre
• 26Pont-du-Casse
• 26Villeneuve-sur-Lot
• 25Layrac
• 25Nérac
• 25Penne-d'Agenais
• 23Foulayronnes
• 22Estillac

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