| ????8.1?????????????????????α?????? |
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| 引用本文： | 崔笃信,王庆良,王文萍.????8.1?????????????????????α??????[J].大地测量与地球动力学,2008,28(3):1-8. |
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| 作者姓名： | 崔笃信 王庆良 王文萍 |
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| 作者单位： | 中国地震局第二监测中心,西安,710054 |
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| 基金项目： | 国家自然科学基金
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地震科学联合基金 |
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| 摘 要： | ????????????丽???????????α?????????????????,??Okada??????????????????????2001??11??14??????8.1??????????λ????????????α??????????????????1??????8.1???????????????????????????????????????λ??????????????40 mm?????2??????????????????????GPS?????????????????????????????????????????
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| 关 键 词： | ?????嶫??? ???λ?? GPS???? ????8.1?????? ?????? |
| 文章编号： | 1671-5942(2008)03-0001-08 |
| 修稿时间： | 2008年1月29日 |
EFFECT OF KUNLUN Ms 8.1 EARTHQUAKE ON CRUSTAL DEFORMATION IN NORTHEASTERN MARGIN OF QINGHAI-TIBET PLATEAU |
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| Cui Duxin,Wang Qingliang,Wang Wenping.EFFECT OF KUNLUN Ms 8.1 EARTHQUAKE ON CRUSTAL DEFORMATION IN NORTHEASTERN MARGIN OF QINGHAI-TIBET PLATEAU[J].Journal of Geodesy and Geodynamics,2008,28(3):1-8. |
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| Authors: | Cui Duxin Wang Qingliang Wang Wenping |
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| Institution: | Second Crust Monitoring and Application Center, CEA,Xi’an 710054 |
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| Abstract: | The seismic fault parameters can be inversed with Okada model based on the deformation data before and after earthquakes in the focal region and its adjacent area.Co-seismic displacements are simulated by use of these parameters and then the regional velocity field is obtained by deducting the co-seismic displacements from the GPS observation displacements.We processed and analyzed the data in northeastern margin of the Qinghai-Tibet plateau observed during 2001-2003 in two steps: firstly,simulated the displacements generated by Kunlun Ms{8.1 earthquake occurred in 2001 in this region,and then obtained the horizontal crustal velocity field by deducting the co-seismic displacements.The results reveal: 1) the effect of Kunlun Ms8.1 earthquake on the northeastern margin of Qinghai-Tibet plateau is obvious;2) the velocity field obtained with this method is better than the original GPS velocity field for reflecting the status of regional crustal movements and strain. |
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| Keywords: | northeastern margin of the Qinghai-Tibet block co-seismic displacement GPS velocity field Kunlun Ms8 1 earthquake crustal movement |
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