Simulation of coseismic effects of the Ms7.0 Lushan earthquake
Using plane dislocation theory and the seismic-wave inversion results from the Institute of Geophysics, China Earthquake Administration and the Institute of Geodesy and Geophysics, Chinese Academy of Sciences models, the surface coseismic deformation and gravity changes caused by the 2013 Ms7.0 Lush...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2013-08-01
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| Series: | Geodesy and Geodynamics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S167498471530080X |
| _version_ | 1818350288553115648 |
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| author | Tan Hongbo Shen Chongyang Wei Jin Zhao Bin Wang Jian Xuan Songbai |
| author_facet | Tan Hongbo Shen Chongyang Wei Jin Zhao Bin Wang Jian Xuan Songbai |
| author_sort | Tan Hongbo |
| collection | DOAJ |
| description | Using plane dislocation theory and the seismic-wave inversion results from the Institute of Geophysics, China Earthquake Administration and the Institute of Geodesy and Geophysics, Chinese Academy of Sciences models, the surface coseismic deformation and gravity changes caused by the 2013 Ms7.0 Lushan earthquake are simulated. The simulations of coseismic gravity change and deformation indicate that the dislocation has dip-slip characteristics. The results also show that the coseismic deformation exhibits a symmetrical, positive-and-negative distribution, with the deformation usually being less than 10 mm in the farfield but up to 140 mm in the near-field. The gravity changes are concentrated on the fault-projection area, which is greatly affected by the vertical surface deformation. The gravity change and vertical deformation in the far field are usually less than and 5 mm, respectively, but reach and 330 mm, respectively, in the near field. The simulated results agree well with the measured results, which suggests a theoretical basis for the observed change in gravity before and after this earthquake. |
| first_indexed | 2024-12-13T18:19:28Z |
| format | Article |
| id | doaj.art-f0b7d393bdaa46fb9db322461936dc13 |
| institution | Directory Open Access Journal |
| issn | 1674-9847 |
| language | English |
| last_indexed | 2024-12-13T18:19:28Z |
| publishDate | 2013-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Geodesy and Geodynamics |
| spelling | doaj.art-f0b7d393bdaa46fb9db322461936dc132022-12-21T23:35:45ZengKeAi Communications Co., Ltd.Geodesy and Geodynamics1674-98472013-08-0143121810.3724/SP.J.1246.2013.03012Simulation of coseismic effects of the Ms7.0 Lushan earthquakeTan Hongbo0Shen Chongyang1Wei Jin2Zhao Bin3Wang Jian4Xuan Songbai5Key Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthuake Administration, Wuhan 430071, ChinaKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthuake Administration, Wuhan 430071, ChinaKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthuake Administration, Wuhan 430071, ChinaKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthuake Administration, Wuhan 430071, ChinaKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthuake Administration, Wuhan 430071, ChinaKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthuake Administration, Wuhan 430071, ChinaUsing plane dislocation theory and the seismic-wave inversion results from the Institute of Geophysics, China Earthquake Administration and the Institute of Geodesy and Geophysics, Chinese Academy of Sciences models, the surface coseismic deformation and gravity changes caused by the 2013 Ms7.0 Lushan earthquake are simulated. The simulations of coseismic gravity change and deformation indicate that the dislocation has dip-slip characteristics. The results also show that the coseismic deformation exhibits a symmetrical, positive-and-negative distribution, with the deformation usually being less than 10 mm in the farfield but up to 140 mm in the near-field. The gravity changes are concentrated on the fault-projection area, which is greatly affected by the vertical surface deformation. The gravity change and vertical deformation in the far field are usually less than and 5 mm, respectively, but reach and 330 mm, respectively, in the near field. The simulated results agree well with the measured results, which suggests a theoretical basis for the observed change in gravity before and after this earthquake.http://www.sciencedirect.com/science/article/pii/S167498471530080XLushan earthquakedislocation theorycoseismic effectssimulation |
| spellingShingle | Tan Hongbo Shen Chongyang Wei Jin Zhao Bin Wang Jian Xuan Songbai Simulation of coseismic effects of the Ms7.0 Lushan earthquake Geodesy and Geodynamics Lushan earthquake dislocation theory coseismic effects simulation |
| title | Simulation of coseismic effects of the Ms7.0 Lushan earthquake |
| title_full | Simulation of coseismic effects of the Ms7.0 Lushan earthquake |
| title_fullStr | Simulation of coseismic effects of the Ms7.0 Lushan earthquake |
| title_full_unstemmed | Simulation of coseismic effects of the Ms7.0 Lushan earthquake |
| title_short | Simulation of coseismic effects of the Ms7.0 Lushan earthquake |
| title_sort | simulation of coseismic effects of the ms7 0 lushan earthquake |
| topic | Lushan earthquake dislocation theory coseismic effects simulation |
| url | http://www.sciencedirect.com/science/article/pii/S167498471530080X |
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