Landslide or debris flow
In the event of a landslide, different materials (e.g. rocks or earth) slide down a hillside. Landslides can occur on land or underwater.
In Belgium, landslides frequently occur along road narrowings, on the slopes of spoil heaps or in the vicinity of quarries.
Risks and causes
What can you do?
There are no specific recommendations for this risk.
Check out our general advice to follow before, during, and after an emergency.
Impact and probability
The figures relating to probability and impact describe a extreme landslide. The BNRA theoretically describes such a scenario as follows:
- A landslide occurs in a vast, densely populated urban area in a very short space of time (a few seconds).
How should you interpret these results?
Within the BNRA, experts assessed three scenarios for each risk: considerable, major or extreme. On each page, you will find the results of the scenario with the highest score based on the combination of likelihood and impact. This does not mean that this scenario will occur or is the most likely. Read more here about how to correctly interpret the results.
Probability
Weak
Human impact
Moderate
Societal impact
Moderate
Environmental impact
Very weak
Financial impact
Moderate
What do the authorities do?
The regional authorities monitor the risk of landslides:
- Environment department (Flanders)
- Brussels Environment (Brussels)
- WPS Agriculture, Natural Resources and Environment (Wallonia)
- Landslides (Wallonia)
In the event of a landslide that requires the intervention of the emergency services, the mayor can trigger the municipality's General emergency and intervention plan.