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The April 20, 2013 Lushan earthquake which occurred in Sichuan, China had only moderate thrust. However, the computed seismic moments (M0) for the Lushan earthquake calculated by several institutions differ significantly from 0.4 × 1019 to 1.69 × 1019 Nm, up to four times difference. We evaluate ten computed M0s by using normal mode observations from superconducting gravimeters in Mainland China....
Based on the elastic dislocation theory, multilayered crustal model, and rupture model obtained by seismic waveform inversion, we calculated the co- and post-seismic surface deformation and gravity changes caused by the Yushu MW6.9 earthquake occurred on April 14, 2010. The observed GPS velocity field and gravity field in Yushu areas are disturbed by the co- and post-seismic effects induced by Yushu...
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