Supriyadi, R.H. Hidayatullah, Mahardika, R. Kusumawardani, T.C. Upomo
A research using microseismic method had been conducted in Trangkil Sejahtera area, Semarang. Microseismic is an effective method to determine the ground shear strain value of a region. This study aimed to determine a landslide prone area within Trangkil Sejahtera, Semarang. Microseismic measurements was performed in an area of 200 × 400 metres with 9 points of measurements. Acquired data from the measurements was then analysed using HVSR (Horizontal to Vertical Spectrum Ratio) method, obtained the natural frequency value between 1.38-7.07 Hz, amplification between 1.42-3.28, thickness of weathering layer between 17.02-95.53 metres and ground shear strain value between 0.00083-0.00203. Those values were then mapped using Surfer to depict the distribution. Furthermore, by integrating the natural frequency value, amplification, Kg , PGA and GSS, it could be known that the landslide prone area is in the northern area of Trangkil Sejahtera. © 2019 Published under licence by IOP Publishing Ltd.
Department of Physics, Universitas Negeri Semarang, Semarang, Indonesia; Department of Civil Engineering, Universitas Negeri Semarang, Indonesia
