Lozère

Recorded Natural Hazards (Géorisques)

It has 152 municipalities and 76,486 inhabitants. Under the seismic zoning in force since 2011, its highest seismicity is low (zone 2 of 5). A natural disaster has been declared 870 times since 1982 (one declaration per municipality and decree), mostly for floods (698) and storms (152). The most recent was signed on 22 June 2025. 115 municipalities have a high radon potential (category 3), home to 86% of inhabitants. 68 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 1982152 municipalities
• 1982Floods and Mudflows · 6 November 1982152 municipalities
• 1994Floods and Mudflows · 4 November 1994137 municipalities
• 2003Floods and Mudflows · 2 December 200386 municipalities
• 1994Floods and Mudflows · 23 September 199457 municipalities
• 2020Floods and Mudflows · 10 June 202047 municipalities

Most Frequently Affected Municipalities

• 15Saint-Privat-de-Vallongue
• 13Pont de Montvert - Sud Mont Lozère
• 13Saint-Germain-de-Calberte
• 12Saint-Étienne-Vallée-Française
• 11Le Collet-de-Dèze
• 11Le Pompidou
• 11Ventalon en Cévennes
• 10Massegros Causses Gorges

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