Drôme

Recorded Natural Hazards (Géorisques)

It has 362 municipalities and 524,207 inhabitants. Under the seismic zoning in force since 2011, 34 municipalities are in a medium or high seismicity zone (4% of inhabitants). A natural disaster has been declared 2,572 times since 1982 (one declaration per municipality and decree), mostly for floods (1,711) and storms (364). The most recent was signed on 18 January 2026. 14 municipalities have a high radon potential (category 3), home to 5% of inhabitants. 95 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

• 1982Storms · 6 November 1982364 municipalities
• 1982Floods and Mudflows · 6 November 1982364 municipalities
• 2003Floods and Mudflows · 1 December 2003130 municipalities
• 1994Floods and Mudflows · 5 January 1994108 municipalities
• 1994Ground Movements · 5 January 1994104 municipalities
• 1993Floods and Mudflows · 2 October 199391 municipalities

Most Frequently Affected Municipalities

• 21Montélimar
• 19Livron-sur-Drôme
• 19Saint-Barthélemy-de-Vals
• 18Pierrelatte
• 18Saint-Donat-sur-l'Herbasse
• 17Bathernay
• 17Crest
• 16Allex

Hazards at a specific address on Géorisques