With its ability to address large deformation problems, the particle flow analysis method (the particle flow code or PFC model) can simulate propagation and runout from landslides to debris flows under complex landslide material compositions with a proper rheologi-cal model. Numerical modelling, a physically based method, is adopted to obtain an in-depth understanding of the mechanism of sediment-related hazards such as landslides and debris flows. This figure can also clarify the predisposing and triggering factors of the Moscardo landslide analyzed in this study, which is triggered by toe erosion by Moscardo Torrent, and is controlled by the presence of lin- ear structural features parallel to those connected with the. The structural lineaments are mainly oriented NE-SW and are connected to strike-slip faults. 2 outline that the DSGSD is clearly controlled by the structural setting. In order to understand this relationship, a geostructural analysis of the study area has been carried out by means of a high resolution Digital Terrain Model (DTM) obtained by a dedicated Airborne LiDAR survey. Nevertheless, the evolution of DSGSD requires necessarily par- ticular structural features that allow the release of major part of the slope. kinematic processes involved in the evolution of a DSGSD are still not completely understood, although it is widely accepted that in the initial stages DSGSD show an evolution by gravitational creep (Genevois and Tecca, 1984), characterized by small displacement rates.

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