Analysis of Land Movement in Talago Mountain Village Using the Geographical Information System Method

Talago Gunung Village has a tropical climate and flat, hilly, and wavy surface relief. The natural landscape in this area has the potential for high-ground movement, which can cause landslides. This is caused by a combination of natural factors, both geological and non-geological. Based on Sawahlunto City information records, Talago Gunung Village is one area that is vulnerable to landslides. As a result, there are fatalities and material losses for residents living in Talago Gunung Village. This research aims to map areas that are prone to ground movement in the research area. The theory used in the 2004 Puslittanak estimation model. Based on the 2004 Puslittanak estimation model, the Talago Gunung Village area predominantly has a landslide threat level with high vulnerability in the northern area and very high vulnerability in the southern area. The parameters used in this model are soil type, rock type, land slope, geological formation, land use, and rainfall. The results of the sieve analysis test found that the grain size at the research location was gravel to sand. The method used in this research is the Geographical Information System method. The research results show that the Talago Gunung Village area has the potential for vulnerability to land movements from low to high levels.