Évreux: geology and natural hazards

Seismic zone

1 of 5 (very low)

Radon potential

Category 1 of 3 (low potential)

Recognised natural disasters

24 since 1983

Underground cavities recorded

129

Ground movements recorded

27

Risk prevention plans

1

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

• Inondation: par une crue à débordement lent de cours d’eau, par remontées de nappes naturelles
• Mouvement de terrain: affaissements et effondrements d’origine anthropique (anciennes carrières souterraines, hors mines), eboulement ou chutes de pierres et de blocs, tassements différentiels
• Feu de forêt
• Risque industriel: effet de surpression
• Transport de marchandises dangereuses

24 events recognised as a natural disaster by ministerial order since 1983.

• Inondations et/ou coulées de boue: 12
• Mouvement de terrain: 6
• Sécheresse: 6
• Grêle: 1
• Inondations remontée nappe: 1
• Tempête: 1

1. Inondations et/ou coulées de boue

   Event on 30/07/2024, order published in the Journal officiel on 27/09/2024.

2. Mouvement de terrain

   Event on 09/08/2020, order published in the Journal officiel on 13/02/2021.

3. Mouvement de terrain

   Event from 10/06/2019 to 11/06/2019, order published in the Journal officiel on 30/11/2019.

4. Sécheresse

   Event from 01/10/2018 to 31/12/2018, order published in the Journal officiel on 10/07/2020.

5. Sécheresse

   Event from 01/04/2017 to 30/09/2017, order published in the Journal officiel on 20/10/2018.

6. Sécheresse

   Event from 01/04/2011 to 31/05/2011, order published in the Journal officiel on 17/07/2012.

7. Sécheresse

   Event from 01/07/2003 to 30/09/2003, order published in the Journal officiel on 01/02/2005.

8. Inondations et/ou coulées de boue

   Event from 23/03/2001 to 29/03/2001, order published in the Journal officiel on 28/04/2001.

9. Mouvement de terrain

   Event on 23/03/2001, order published in the Journal officiel on 01/12/2001.

10. Inondations remontée nappe

    Event from 23/03/2001 to 29/03/2001, order published in the Journal officiel on 18/01/2002.

11. Inondations et/ou coulées de boue

    Event from 06/01/2001 to 08/01/2001, order published in the Journal officiel on 23/02/2001.

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

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

13. Inondations et/ou coulées de boue

    Event on 07/05/1999, order published in the Journal officiel on 20/10/1999.

14. Mouvement de terrain

    Event on 08/12/1998, order published in the Journal officiel on 14/07/1999.

15. Inondations et/ou coulées de boue

    Event on 16/06/1997, order published in the Journal officiel on 30/12/1997.

16. Inondations et/ou coulées de boue

    Event from 17/01/1995 to 31/01/1995, order published in the Journal officiel on 08/02/1995.

17. Inondations et/ou coulées de boue

    Event on 19/07/1994, order published in the Journal officiel on 17/12/1994.

18. Mouvement de terrain

    Event from 17/06/1993 to 19/06/1993, order published in the Journal officiel on 24/03/1994.

19. Sécheresse

    Event from 01/01/1991 to 30/09/1996, order published in the Journal officiel on 12/04/1997.

20. Inondations et/ou coulées de boue

    Event from 16/02/1990 to 18/02/1990, order published in the Journal officiel on 24/05/1990.

21. Sécheresse

    Event from 01/05/1989 to 31/12/1990, order published in the Journal officiel on 27/12/1991.

22. Inondations et/ou coulées de boue

    Event from 07/05/1988 to 08/05/1988, order published in the Journal officiel on 13/08/1988.

23. Grêle, Inondations et/ou coulées de boue, Tempête

    Event on 19/08/1983, order published in the Journal officiel on 11/09/1983.

24. Inondations et/ou coulées de boue

    Event on 19/08/1983, order published in the Journal officiel on 08/10/1983.

Seismic zone

Zone 1 of 5: very low. 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.

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

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

See cavities and ground movements on the map

• PPRN-I - Evreux

  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.

• Gravigny (27)
• Fauville (27)
• Parville (27)
• Angerville-la-Campagne (27)
• Huest (27)
• Aviron (27)
• Arnières-sur-Iton (27)
• Saint-Sébastien-de-Morsent (27)

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.