Rombas: geology and natural hazards

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
• Transport de marchandises dangereuses

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

• Inondations et/ou coulées de boue: 9
• Sécheresse: 7
• Mouvement de terrain: 1

1. Sécheresse

   Event from 01/07/2022 to 30/09/2022, order published in the Journal officiel on 03/05/2023.

2. Sécheresse

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

3. Sécheresse

   Event from 01/07/2020 to 30/09/2020, order published in the Journal officiel on 07/05/2021.

4. Sécheresse

   Event from 01/07/2019 to 30/09/2019, order published in the Journal officiel on 10/07/2020.

5. Sécheresse

   Event from 01/07/2018 to 30/09/2018, order published in the Journal officiel on 22/06/2019.

6. Inondations et/ou coulées de boue

   Event on 11/06/2018, order published in the Journal officiel on 20/10/2018.

7. Inondations et/ou coulées de boue

   Event from 28/05/2016 to 08/06/2016, order published in the Journal officiel on 16/06/2016.

8. Sécheresse

   Event from 01/01/2016 to 31/03/2016, order published in the Journal officiel on 01/09/2017.

9. Sécheresse

   Event from 01/07/2003 to 30/09/2003, order published in the Journal officiel on 22/01/2006.

10. 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.

11. 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.

12. Inondations et/ou coulées de boue

    Event from 19/12/1993 to 02/01/1994, order published in the Journal officiel on 15/01/1994.

13. Inondations et/ou coulées de boue

    Event from 14/02/1990 to 18/02/1990, order published in the Journal officiel on 15/08/1990.

14. Inondations et/ou coulées de boue

    Event from 23/05/1983 to 30/05/1983, order published in the Journal officiel on 24/06/1983.

15. Inondations et/ou coulées de boue

    Event from 01/04/1983 to 28/04/1983, order published in the Journal officiel on 18/05/1983.

16. 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 1 of 5: very low. This regulatory zoning, in force since 2011, sets the rules for earthquake-resistant construction.

Radon potential

Category 2 of 3: low potential, with aggravating factors. Geological features (faults, mine workings, thermal springs) can make it easier for radon to reach buildings. 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.

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

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

See cavities and ground movements on the map

• Révision PPRmvt Rombas

  Natural risk prevention plan, under revision.

• PPRM-Orne modification

  Mining 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.

• Clouange (57)
• Rosselange (57)
• Vitry-sur-Orne (57)
• Pierrevillers (57)
• Gandrange (57)
• Moyeuvre-Grande (57)
• Amnéville (57)
• Marange-Silvange (57)

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.