Co-seismic and Post-seismic Deformation of the Sumatra Mw8.6 Earthquake Detected by GRACE RL05 Data
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.
Key words ：
GRACE
Sumatra MW 8.6 earthquake
co-seismic and post-seismic deformation
Cite this article:
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-.
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-.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2016/V36/I5/400
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