Prediction of Landslides Using Surface Wave Analysis Incorporating with GIS: A Case Study in Selangor, Malaysia

Sites Bukit Antarabangsa, Selangor and at Universiti Kebangsaan Malaysia, Selangor were investigated using Multichannel Analysis of Surface Wave (MASW) method. Surface wave method is incorporated with Geographic Information System (GIS) to investigate the hazardous zone for landslides that allows online data to obtain near surface soil profiles. Low frequency seismic signals are used to get 2-D tomography profiles of surface soil near landslides. It is possible to identify landslide risks, if geological and geotechnical properties of soil are known. The effects of different man-made factors for landslides are characteristic properties of soil, slope geometry, road construction etc. The results of analysis of soil properties within the areas are presented in this paper. The GIS interfacing with seismic sensors is capable of showing the shear wave velocity, Vs and shear modulus Gs of risk areas through online seismic records. The aim of this paper is to obtain the online records of risk areas for landslides by getting the soil properties of surface soil using MASW