Tourrette-Levens: geology and natural hazards

Seismic zone

4 of 5 (medium)

Radon potential

Category 1 of 3 (low potential)

Recognised natural disasters

22 since 1982

Underground cavities recorded

30

Ground movements recorded

6

Risk prevention plans

2

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

• Inondation: par une crue torrentielle ou à montée rapide de cours d’eau
• Mouvement de terrain: affaissements et effondrements d’origine anthropique (anciennes carrières souterraines, hors mines), eboulement ou chutes de pierres et de blocs, glissement de terrain, tassements différentiels
• Séisme
• Feu de forêt
• Risque industriel: effet thermique

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

• Inondations et/ou coulées de boue: 12
• Mouvement de terrain: 6
• Sécheresse: 2
• Glissement de terrain: 1
• Secousse sismique: 1
• Tempête: 1

1. Sécheresse

   Event from 01/01/2022 to 31/12/2022, order published in the Journal officiel on 03/05/2023.

2. Inondations et/ou coulées de boue

   Event from 23/11/2019 to 24/11/2019, order published in the Journal officiel on 30/11/2019.

3. Inondations et/ou coulées de boue

   Event from 04/11/2014 to 05/11/2014, order published in the Journal officiel on 06/01/2015.

4. Inondations et/ou coulées de boue

   Event from 16/01/2014 to 18/01/2014, order published in the Journal officiel on 02/02/2014.

5. Mouvement de terrain

   Event from 16/01/2014 to 21/01/2014, order published in the Journal officiel on 26/04/2014.

6. Inondations et/ou coulées de boue

   Event from 02/12/2005 to 03/12/2005, order published in the Journal officiel on 14/05/2006.

7. Sécheresse

   Event from 01/07/2003 to 30/09/2003, order published in the Journal officiel on 13/12/2005.

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

   Event from 23/11/2000 to 24/11/2000, order published in the Journal officiel on 14/06/2001.

9. Mouvement de terrain

   Event on 06/11/2000, order published in the Journal officiel on 14/06/2001.

10. Inondations et/ou coulées de boue

    Event from 05/11/2000 to 06/11/2000, order published in the Journal officiel on 29/12/2000.

11. Inondations et/ou coulées de boue

    Event from 30/10/2000 to 31/10/2000, order published in the Journal officiel on 29/12/2000.

12. Mouvement de terrain

    Event from 30/10/2000 to 31/10/2000, order published in the Journal officiel on 14/06/2001.

13. Inondations et/ou coulées de boue

    Event on 11/10/2000, order published in the Journal officiel on 29/12/2000.

14. Mouvement de terrain

    Event from 11/10/2000 to 16/10/2000, order published in the Journal officiel on 14/06/2001.

15. Mouvement de terrain

    Event on 02/10/2000, order published in the Journal officiel on 02/08/2003.

16. Inondations et/ou coulées de boue

    Event from 11/01/1996 to 12/01/1996, order published in the Journal officiel on 14/02/1996.

17. Secousse sismique

    Event on 21/04/1995, order published in the Journal officiel on 08/09/1995.

18. Inondations et/ou coulées de boue

    Event from 04/11/1994 to 06/11/1994, order published in the Journal officiel on 25/11/1994.

19. Inondations et/ou coulées de boue

    Event from 26/09/1994 to 27/09/1994, order published in the Journal officiel on 31/01/1995.

20. Glissement de terrain

    Event on 08/10/1993, order published in the Journal officiel on 21/01/1994.

21. Inondations et/ou coulées de boue

    Event from 05/10/1993 to 10/10/1993, order published in the Journal officiel on 21/01/1994.

22. Tempête

    Event from 06/11/1982 to 10/11/1982, order published in the Journal officiel on 22/12/1982.

Seismic zone

Zone 4 of 5: medium. 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.

30 underground cavities recorded (quarries, cellars, military works, natural cavities…).

6 ground movements recorded (landslides, rockfalls, collapses, mudflows…).

See cavities and ground movements on the map

• PPRN-Mvt - Tourette-Levens 2014

  Natural risk prevention plan.

• PPRN-IF - Tourrette-Levens 2003

  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.

• Aspremont (06)
• Châteauneuf-Villevieille (06)
• Castagniers (06)
• Contes (06)
• Falicon (06)
• Cantaron (06)
• Saint-Blaise (06)
• Drap (06)

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.