The influence of structural geology on the occurrence of landslides in Pringapus Area, Semarang district and surroundings Available to Purchase

Pringapus area is a sub-district in Semarang District, and its geological framework is characterized by thrust faults that belong to the Kendeng Fold and Thrust Belt. Some researchers stated that structural geology is one of the factors controlling the occurrences of landslides. This study investigates the influence of structural geology; particularly the role thrust faults play on the occurrence of landslides in the Pringapus area and its surroundings. The methods applied in this study include the interpretation of the structural geology based on the analysis of Digital Elevation Model (DEM) map and satellite imagery of the study area, also geological mapping to determine the distribution of landslide locations and its classifications. The results showed that thrust faults predominantly control the geomorphology of the study area. Geological mapping also revealed that landslides in the study area are bound to areas controlled by thrust faults and areas with steep topographic slopes and weak lithology. In this study, landslides distributions in the area are associated with the thrust fault and fold zone and are largely influenced by the fractures that occur along faults, thus weakening the lithology.