Abstract:The latest UTCSR GRACE RL05 monthly gravity field models were processed by using de-correlation and 300 km radius Gaussian smoothing, and the co-seismic and post-seismic deformations of the Sumatra MW8.6 earthquake are extracted successfully for the first time. Pre-seismic and post-seismic deformation rates around the epicenter are calculated by using least squares. The results show that co-seismic deformation of about -8-14 cm, pre-seismic deformation rates of about 1-4 cm/a and post-seismic deformation rates of about -1--3 cm/a can be detected by GRACE satellite gravity surveying.
ZHENG Zengji,CAO Jianping,ZHUANG Wenquan et al. Co-seismic and Post-seismic Deformation of the Sumatra Mw8.6 Earthquake Detected by GRACE RL05 Data[J]. jgg, 2016, 36(5): 400-.