Metropolitan Department
Gers
France · Europe
Gers is a metropolitan department of France, in Europe. It lies on the Eurasian Plate.
Tectonic Plates
Recorded Natural Hazards (Géorisques)
It has 458 municipalities and 192,645 inhabitants. Under the seismic zoning in force since 2011, its highest seismicity is moderate (zone 3 of 5). A natural disaster has been declared 4,298 times since 1982 (one declaration per municipality and decree), mostly for drought (2,110) and floods (1,686). The most recent was signed on 22 June 2025. 459 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 2009461 municipalities
- 1999Floods and Mudflows · 25 December 1999460 municipalities
- 1999Ground Movements · 25 December 1999460 municipalities
- 2022Drought (Clay Shrinkage) · 1 July 2022195 municipalities
- 2003Drought (Clay Shrinkage) · 1 July 2003100 municipalities
- 2017Drought (Clay Shrinkage) · 1 January 201765 municipalities
Most Frequently Affected Municipalities
- 27L'Isle-Jourdain
- 22Aubiet
- 22Auch
- 22Fleurance
- 22Lectoure
- 22Vic-Fezensac
- 21Condom
- 21Gimont
Hazards Listed by Municipality
Number of municipalities exposed to each natural hazard according to the departmental major risks file.
Sources: Natural Earth · Smithsonian GVP · NOAA NCEI · IBTrACS · GEM · Bird (2003), PB2002 · Géorisques (ministère de la Transition écologique, BRGM, IRSN), base GASPAR · INSEE