Haute-Saône

Recorded Natural Hazards (Géorisques)

It has 536 municipalities and 233,185 inhabitants. Under the seismic zoning in force since 2011, its highest seismicity is moderate (zone 3 of 5). A natural disaster has been declared 3,290 times since 1982 (one declaration per municipality and decree), mostly for floods (2,458) and ground movements (541). The most recent was signed on 22 June 2025. 47 municipalities have a high radon potential (category 3), home to 13% of inhabitants. 164 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 1999539 municipalities
• 1982Floods and Mudflows · 8 December 1982539 municipalities
• 1999Ground Movements · 25 December 1999539 municipalities
• 1982Floods and Mudflows · 9 November 1982295 municipalities
• 1982Floods and Mudflows · 14 October 1982244 municipalities
• 1983Floods and Mudflows · 16 May 1983133 municipalities

Most Frequently Affected Municipalities

• 16Lure
• 15Vesoul
• 14Luxeuil-les-Bains
• 12Belles-Fontaines
• 12Gray
• 12Navenne
• 11Champlitte
• 11Conflans-sur-Lanterne

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