The Study of Japan Earthquake Deformation Based on GPS

According to the GPS data provided by International GNSS Service, the author adopted the software of GAMIT/GLOBK to solve the GPS data. The deformation of GPS stations’ coordinates during the Mw 9.0 Japan Earthquake was achieved which was utilized to infer physical processes at earthquake sources. It was computed six GPS stations’ data by GAMIT/GLOBK software and analyzed the GPS stations’ coordinate series. The changes of six stations were subsiding in the Vertical direction, while the changes of each station were moving north in the earthquake time in the North direction. The change values among KGNI, TSK2 and TSKB in North and Vertical direction reached 0.4m, or nearly 0.5m. It can be concluded that KGNI, TSK2 and TSKB were greater changes in the earthquake, which were close to the earthquake epicenter.