Spain - Aragon Landslide Susceptibility - Spatial Data Infrastructure of Aragon

Data in Spanish

Map Scale 1:50.000

Landslide susceptibility maps were developed using a classification that has been made based on the behavior properties of the material (rock or soil), the level of fracturing in the case of rocks that in turn determines the permeability of the massif , the intensity of precipitation of the area in the case of soils and surface slopes.

With these criteria, the following classification of susceptibility is obtained:

Very high: Indicates that the probability of landslide is very high and is associated with areas where there are indications that similar phenomena have already occurred. Also, soils classified slopes greater than 60 degree or slopes between 45 and 60 degrees in areas with high rainfall intensity.

High: Without clear signs, these are areas in which the materials correspond to highly fissured rocks and slopes greater than 60 degrees. Soils included in areas of high rainfall intensity and slopes between 30 and 45 degrees and soils in areas of low rainfall intensity and slopes between 45 and 60 degrees.

Average: Corresponds to soils with slopes between 10 and 30 degrees and high precipitations, and slopes of 30 to 45 degrees with low rainfall. In the case of rocks with high fracturing and slopes between 45 and 60 degrees and low fracturing with slopes greater than 60 degrees.

Low: Corresponds to soils with slopes of less than 10 degrees and high rainfall and slopes of 10 to 30 degrees with low rainfall. In the case of rocks with high fracturing and slopes between 30 and 45 degrees and low fracturing with slopes between 45 and 60 degrees . Very low: It corresponds in general with slopes lower than 30 degrees in the case of rocks, or between 30 and 45 degrees and low fracturing. Soils with a slope of fewer than 10 degrees and low rainfall intensity are also included.