Aigre: geology and natural hazards

Natural and technological hazards to which the commune is exposed, according to the national GASPAR database.

• Séisme

8 events recognised as a natural disaster by ministerial order since 1982.

• Inondations et/ou coulées de boue: 4
• Sécheresse: 3
• Inondations remontée nappe: 1
• Mouvement de terrain: 1

1. Inondations et/ou coulées de boue

   Event from 08/02/2026 to 23/02/2026, order published in the Journal officiel on 03/03/2026.

2. Inondations remontée nappe

   Event from 01/02/2021 to 10/02/2021, order published in the Journal officiel on 01/06/2024.

3. Inondations et/ou coulées de boue, Mouvement de terrain

   Event from 25/12/1999 to 29/12/1999, order published in the Journal officiel on 30/12/1999.

4. Inondations et/ou coulées de boue

   Event from 30/12/1993 to 15/01/1994, order published in the Journal officiel on 10/02/1994.

5. Sécheresse

   Event from 01/01/1992 to 30/09/1998, order published in the Journal officiel on 10/03/1999.

6. Sécheresse

   Event from 01/06/1989 to 31/12/1991, order published in the Journal officiel on 28/12/1993.

7. Sécheresse

   Event from 01/06/1989 to 31/12/1991, order published in the Journal officiel on 24/11/1994.

8. Inondations et/ou coulées de boue

   Event from 08/12/1982 to 31/12/1982, order published in the Journal officiel on 13/01/1983.

Seismic zone

Zone 3 of 5: moderate. This regulatory zoning, in force since 2011, sets the rules for earthquake-resistant construction.

Radon potential

Category 1 of 3: low potential. The geological formations have the lowest uranium content. Radon is a naturally occurring radioactive gas that can build up in poorly ventilated rooms.

What BRGM maps say at the town hall. They describe that single point: elsewhere in the commune, the ground may be quite different.

• Shrink-swell clays

• Rising groundwater

• Underground cavities

• Ground movements

• Earthquakes

• Nature of the ground

Recorded across the whole commune by BRGM, in its national databases of underground cavities and ground movements.

No underground cavity recorded (quarries, cellars, military works, natural cavities…).

No ground movement recorded (landslides, rockfalls, collapses, mudflows…).

See cavities and ground movements on the map

• PPR - Aume et Couture

  Natural risk prevention plan.

The zoning and regulations of each plan, which may prohibit or restrict building, can be consulted at the town hall and on Géorisques.

• Oradour (16)
• Mons (16)
• Ébréon (16)
• Fouqueure (16)
• Marcillac-Lanville (16)
• Tusson (16)
• Ambérac (16)
• La Chapelle (16)

Listed hazards, natural disasters, seismic zoning, radon potential, cavities, ground movements and prevention plans: Géorisques, published by the French ministry for the ecological transition, under Licence Ouverte Etalab 2.0, data accessed on 02/11/2026. Summary beneath the town hall: BRGM map services, queried when the page is displayed. List of communes and populations: API Découpage administratif (geo.api.gouv.fr), d’après le code officiel géographique de l’Insee, version of 30/10/2026.

This information reflects the state of knowledge at the scale of the commune or of a single point. It replaces neither a soil survey nor the official risk statement (état des risques) required for a sale or a rental, which is drawn up on the official French government service.