Le Monteil: geology and natural hazards

Seismic zone

2 of 5 (low)

Radon potential

Category 3 of 3 (significant potential)

Recognised natural disasters

10 since 1982

Underground cavities recorded

None

Ground movements recorded

1

Risk prevention plans

2

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

• Inondation: par ruissellement et coulée de boue
• Mouvement de terrain: glissement de terrain
• Séisme
• Phénomène lié à l’atmosphère: tempête et grains (vent)
• Radon
• Transport de marchandises dangereuses

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

• Inondations et/ou coulées de boue: 7
• Sécheresse: 2
• Poids de la neige: 1
• Tempête: 1

1. Inondations et/ou coulées de boue

   Event from 15/10/2024 to 19/10/2024, order published in the Journal officiel on 04/11/2024.

2. Sécheresse

   Event from 01/07/2023 to 30/09/2023, order published in the Journal officiel on 02/07/2024.

3. Sécheresse

   Event from 01/04/2022 to 30/09/2022, order published in the Journal officiel on 03/05/2023.

4. Inondations et/ou coulées de boue

   Event from 10/06/2020 to 13/06/2020, order published in the Journal officiel on 24/10/2020.

5. Inondations et/ou coulées de boue

   Event from 02/11/2008 to 03/11/2008, order published in the Journal officiel on 13/02/2009.

6. Inondations et/ou coulées de boue

   Event on 26/06/1998, order published in the Journal officiel on 03/10/1998.

7. Inondations et/ou coulées de boue

   Event from 12/11/1996 to 13/11/1996, order published in the Journal officiel on 20/12/1996.

8. Inondations et/ou coulées de boue

   Event on 24/05/1996, order published in the Journal officiel on 17/07/1996.

9. Poids de la neige

   Event from 26/11/1982 to 28/11/1982, order published in the Journal officiel on 22/12/1982.

10. Tempête, Inondations et/ou coulées de boue

    Event from 06/11/1982 to 10/11/1982, order published in the Journal officiel on 19/11/1982.

Seismic zone

Zone 2 of 5: low. This regulatory zoning, in force since 2011, sets the rules for earthquake-resistant construction.

Radon potential

Category 3 of 3: significant potential. At least part of the commune has higher-than-average 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…).

1 ground movement recorded (landslides, rockfalls, collapses, mudflows…).

See cavities and ground movements on the map

• PPR inondation

  Natural risk prevention plan, under revision.

• PPRN-Mvt - Bassin du Puy-en-Velay

  Natural risk prevention plan, under revision.

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

• Chadrac (43)
• Brives-Charensac (43)
• Aiguilhe (43)
• Le Puy-en-Velay (43)
• Chaspinhac (43)
• Espaly-Saint-Marcel (43)
• Polignac (43)
• Vals-près-le-Puy (43)

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 03/11/2026. 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.