| 玉树MS 7. 1 地震同震效应模拟与绝对重力检验 |
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| 引用本文： | 谈洪波,申重阳,邢乐林,李辉,陈石.玉树MS 7. 1 地震同震效应模拟与绝对重力检验[J].中国地震研究,2013,27(4):458-466. |
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| 作者姓名： | 谈洪波 申重阳 邢乐林 李辉 陈石 |
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| 作者单位： | 中国地震局地震研究所(地震大地测量重点实验室) ，武汉市洪山侧路40 号430071;中国地震局地震研究所(地震大地测量重点实验室) ，武汉市洪山侧路40 号430071;中国地震局地震研究所(地震大地测量重点实验室) ，武汉市洪山侧路40 号430071;中国地震局地震研究所(地震大地测量重点实验室) ，武汉市洪山侧路40 号430071;中国地震局地球物理研究所，北京100081 |
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| 基金项目： | This research was funded by the National Natural Science Foundation of China (41104049)，the Earthquake Situation Tracking，CEA (2012020207)，and Scientific Investigation of Yushu MS7. 1 Earthquake，CEA (2060302) ． |
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| 摘 要： | Using the results of aftershock relocation, inversion on seismic waves and InSAR results, and surface rupture displacements obtained by geological survey after the earthquake, this paper constructs a fault model of the Yushu Ms7. 1 earthquake. Based on rectangular dislocation theory in an elastic-viscoelastic layered medium, we have simulated the co- seismic deformation and gravity change with gravitational effect considered. The pictures show that the absolute gravity measuring point is beside the extremum of coseismic gravity change, and the numerical value reaches 25.02 x 10-Sm. s-2. After a discussion about the gravity changes before the earthquake and the coherence consistency between two FG-5 absolute gravimeters, we think that the measured value 27.2 × 10^-8 m· s^-2 at Yushu station is coseismic gravity change. It＇s coincident with the simulation results based on dislocation theory. Therefore it is a good tool to test the near-field changes found by dislocation theory.
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| 关 键 词： | 绝对重力仪 理论模拟 地震波 同震效应 玉树 重力变化 检验 位错理论 |
| 收稿时间： | 2012/9/14 0:00:00 |
Coseismic Effect Simulation of Yushu MS 7. 1 Earthquake and Absolute Gravity Inspection1 |
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| Tan Hongbo,Shen Chongyang,Xing Leling,Li Hui and Chen Shi.Coseismic Effect Simulation of Yushu MS 7. 1 Earthquake and Absolute Gravity Inspection1[J].Earthquake Research in China,2013,27(4):458-466. |
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| Authors: | Tan Hongbo Shen Chongyang Xing Leling Li Hui and Chen Shi |
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| Institution: | [1]Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071, China [2]Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
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| Abstract: | Yushu earthquake Dislocation Coseismic simulation Absolute gravity |
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| Keywords: | Yushu earthquake Dislocation Coseismic simulation Absolute gravity |
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