Debris slide and debris flow - rough susceptibility zones


Susceptibility areas for debris slides and debris flows reveal potential runout areas for all type of soil landslides, with the exception of quick clay slides and large debris flows in river channels. The entire runout area should be assessed when using the dataset for analysis purposes. The runout area includes all the area where the landslide still contains material that can be deposited. If the water content of the landslide is very high, the water can continue to travel farther than the solid material. The susceptibility map may be useful in connection with monitoring and contingency planning, particularly in vulnerable areas where more detailed maps are unavailable.

Specific usage

Land use planning for municipal plans. Monitoring and contingency planning. The Norwegian Water Resources and Energy Directorate accepts no liability for damage or injuries due to errors in data and incorrect use of data.


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Contact information

Logo Norges vassdrags- og energidirektorat

Contact metadata:
Søren Kristensen, – Norwegian Water Resources and Energy Directorate

Contact owner:
Reginald Hermanns, – Norwegian Water Resources and Energy Directorate

Contact publisher:
Ivar Peereboom, – Norwegian Water Resources and Energy Directorate


Spatial representation: Vector

  • FGDB 10.0
  • GML 3.2.1
  • PostGIS 9.4
  • SOSI 4.5

Distribution type: Geonorge download

Units of distribution: fylkesvis, kommunevis, landsfiler

Reference systems:
  • EUREF89 UTM sone 32, 2d
  • EUREF89 UTM sone 33, 2d
  • EUREF89 UTM sone 35, 2d
  • EUREF 89 Geografisk (ETRS 89) 2d


Use limitations: Dataene er kun egnet for arealplanarbeide på kommuneplannivå

Access constraints: Open data

Use constraints: License

Licence: Norsk lisens for offentlige data (NLOD)


The methods used in the production of the susceptibility map are described in detail in a report made by the Geological Survey of Norway (Fischer et al., 2014). The maps are created using two different numerical-topographic models; one for source areas and one for landslide run-out in which the input parameters are calculated and adjusted manually in relation to topography, geology and previous landslide activity in the area. Both the identification of source areas and run-out modelling are based on the Norwegian Mapping Authority's latest digital elevation model (DEM) with spatial resolution 10x10 m (2012).