Aube

Recorded Natural Hazards (Géorisques)

It has 431 municipalities and 310,447 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 1,552 times since 1982 (one declaration per municipality and decree), mostly for floods (920) and ground movements (430). The most recent was signed on 24 February 2025. 127 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

• 1999Ground Movements · 25 December 1999429 municipalities
• 1999Floods and Mudflows · 25 December 1999429 municipalities
• 2018Floods and Mudflows · 20 January 201853 municipalities
• 2020Drought (Clay Shrinkage) · 1 July 202044 municipalities
• 2018Floods and Mudflows · 15 January 201841 municipalities
• 1983Floods and Mudflows · 10 April 198336 municipalities

Most Frequently Affected Municipalities

• 13Troyes
• 13Verrières
• 12Bar-sur-Aube
• 12Saint-Lyé
• 10Jaucourt
• 10Romilly-sur-Seine
• 9Clérey
• 9Les Riceys

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