Geology and landslide susceptibility mapping using Geographic Information System (GIS) at Aring 5, Gua Musang, Kelantan

Research was conducted at Felda Aring 5, Gua Musang, Kelantan that was approximately 25km² and the coordinate of the research area is 4° 51’ 26.0’’N longitude to 102° 18’ 48.8’’E at the latitude. The purpose of this study is to update the geological map of this study area in the scale of 1:25000, determine landslide susceptibility factors and analyse the landslide susceptibility analysis at the study area using the ArcGIS software. The study area composed of three main lithological unit that is interbedded shale, slate and phyllite unit, tuff unit and also interbedded mudstone unit. Based on the weightage overlay method in the ArcGIS software, the susceptibility of landslide in the research area was determined. Eight parameters have been chosen in determining the landslide susceptibility that is slope, lineament density, the type of lithology, vegetation, aspect, land use, drainage density and also soil cover in the research area. The weightage and score for each parameter had been assigned based on the references from the previous study. Eight maps from each of the parameters have been produced and in the end the landslide susceptibility map of the study area was made by overlaying all of the eight maps. The zone of the susceptibility was divided into three that is the low susceptibility zone, moderate susceptibility zone and also the high susceptibility zone.