A Comparison of Geologic Structure Detection of Sumatera Island Using Goce Satellite Gravity Data and Sgg-Ugm-2 Data

GOCE gravity satellite data can be used for regional fault detection because the observation area is wide and not limited by area. In this study, to detect geological structures on island of Sumatra, results which are as basis disaster mitigation. SGG-UGM-2 were processed using User Toolbox (GUT) software produce a disturbance map complete bouguer anomaly map. The obtained validated high-resolution model data. calculation that value from was around -140 200 mGal, while -180-300 mGal. Subduction Trench, Mentawai Fault, West Andaman Fault Sumatra Island with negative values, Sumatran Zone (SFZ) along positive values ​​in line presence mountain ranges. processing more detailed than degree higher GOCE. 40-560 60-560 maps patterns but cannot clearly SFZ. also differences between oceanic continental crust. show almost similar ability sub Island. addition, GRACE