Geoelectric Method Application of Dipole-Dipole Configuration for Identification of Landslide Prone Areas in Poka Village, Ambon

Abstract

Landslide disaster is one type of disaster that often occurs in Indonesia which causes many casualties and loss of property. Ambon City is an area with high potential for landslides. This is because Ambon City is an area with steep slopes and high rainfall, so a study is needed to overcome this as a disaster mitigation effort. This study aims to determine the area of landslide slip and direction of landslides as a basis for identifying landslide-prone areas using the dipole-dipole configuration geoelectric method. This research was conducted in Poka Village, Ambon City, Maluku Province. Geoelectric measurements using the AGI Ministing tool with data retrieval as much as 5 tracks. Based on the results of the analysis, it was found that the soil layer was dominated by clay and limestone. The reconstruction results show that the topography of the area is a slope with a slope of 45o-80o, and the slip plane has each path with a resistivity contrast of ± 25-60 Ωm at a depth of 5-15 meters, while the direction of the landslide is directed to the southeast.