芦山地震同震和震后地表形变及重力变化的理论模拟

邓明莉; 孙和平; 徐建桥; 祝意青

doi:10.3799/dqkx.2014.120

Volume 39 Issue 9

Sep. 2014

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Deng Mingli, Sun Heping, Xu Jianqiao, Zhu Yiqing, 2014. Theoretical Simulation of Co-Seismic and Post-Seismic Deformations and Gravity Changes of Lushan Earthquake. Earth Science, 39(9): 1373-1382. doi: 10.3799/dqkx.2014.120

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Deng Mingli, Sun Heping, Xu Jianqiao, Zhu Yiqing, 2014. Theoretical Simulation of Co-Seismic and Post-Seismic Deformations and Gravity Changes of Lushan Earthquake. Earth Science, 39(9): 1373-1382. doi: 10.3799/dqkx.2014.120

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Theoretical Simulation of Co-Seismic and Post-Seismic Deformations and Gravity Changes of Lushan Earthquake

doi: 10.3799/dqkx.2014.120

1.
State Key Laboratory of Geodesy and Earth's Dynamics, Institute of Geodesy and Geophysics, CAS, Wuhan 430077, China
2.
College of Earth Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
3.
Second Monitoring Center, China Earthquake Administration, Xi'an 710054, China

Received Date: 2014-01-05
Publish Date: 2014-09-01

Abstract

Abstract

This paper aims at studying the seismogenic process and long-term tectonic process of the source area and explain the post-seismic deformation and gravity data in Lushan earthquake. Based on the layered half-space model, we calculate the co- and post-seismic surface deformations and gravity changes and their time series gained by the GPS and gravity stations, considering regional rheological coefficients, and using the numerical simulation method. It is found that the surface co-seismic deformation shows seismogenic fault is of obvious thrusting characteristics The range of influence of viscoelastic relaxation is significantly enlarged than that of the co-seismic, but changes gradually reduce with the increase of viscousity coefficients. The time-variable curves of the stations show that post-seismic deformation and gravity changes are significant in 50 years after the earthquake, become gentle after 100 years and tend to be stable. The post-seismic observations of the GPS stations are convinced to consider the effect of viscoelastic relaxation except for the MEIG and the MYAN.
- Lushan earthquake,
- ground deformation,
- gravity change,
- viscoelastic relaxation,
- geophysics

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References(41)

References

Bürgmann, R., Dresen, G., 2008. Rheology of the Lower Crust and Upper Mantle: Evidence from Rock Mechanics, Geodesy, and Field Observations. Ann. Rev. Earth Planet. Sci., 36: 531-567. doi: 10.1146/annurev.earth.36.031207.124326

Diao, F.Q., 2011. The Study of Coseismic and Postseismic Deformation Based on GPS Observation (Dissertation). Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan (in Chinese with English abstract).

Diao, F.Q., Xiong, X., Wang, R.J., 2010. Mechanism of Transient Post-Seismic Deformation Following the 2001 Mw7.8 Kunlun (China) Earthquake. Pure and Applied Geophysics, 168: 767-779. doi: 10.1007/s00024-010-0154-5

Du, F., Long, F., Ruan, X., et al., 2013. The Ms7.0 Lushan Earthquake and the Relationship with the M8.0 Wenchuan Earthquake in Sichuan, China. Chinese J. Geophys., 56(5): 1772-1783 (in Chinese with English abstract). doi: 10.6038/cjg20130535

Freed, A.M., 2007. Afterslip (and Only Afterslip) Following the 2004 Parkfield, California Earthquake. Geophys. Res. Lett., 34. doi: 10.1029/2006GL029155

Liu, C.L., Zheng, Y., Ge, C., et al., 2013. Rupture Process of the M7.0 Lushan Earthquake. Science in China (Series D), 43(6): 1020-1026 (in Chinese). doi: 10.1007/s11430-01304639-9

Liu, J., Yi, G.X., Zhang, Z.W., et al., 2013. Introduction to the Lushan, Sichuan Ms7.0 Earthquake on 20 April 2013. Chinese J. Geophys., 56(4): 1404-1407 (in Chinese with English abstract). doi: 10.6038/cjg20130434

Long, F., Ni, S.D., Wen, X.Z., 2011. Variations of Moho Depth and Velocity Ratio along and Surrounding the Longmenshan Fault Zone from Tele-Seismic Receiver Functions. Acta Geoscientica Sinica, 32(4): 438-446 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQXB201104014.htm

Lorenzo-Martín, F., Roth, F., Wang, R., 2006. Inversion for Rheological Parameters from Postseismic Surface Deformation Associated to the 1960 Valdivia Earthquake, Chile. Geophys. J. Int., 164: 75-87. doi: 10.1111/j.1365-246X.2005.02803.x

Lü, J., Wang, X.S., Su, J.R., et al., 2013. Hypocentral Location and Source Mechanism of the Ms7.0 Lushan Earthquake Sequence. Chinese J. Geophys., 56(5): 1753-1763 (in Chinese with English abstract). doi: 10.6038/cjg20130533

Nur, A., Mavok, G., 1974. Postseismic Viscoelastic Rebound. Science, 183: 204-206. doi:10.1126/ science.183.4121.204

Peltzer, G., Rosen, P., Rogez, F., et al., 1998. Poroelastic Rebound along the Landers 1992 Earthquake Surface Rupture. J. Geophys. Res., 103(B12): 30131-30145. doi: 10.1029/98JB02302

Pollitz, F.F., Peltzer, G., Bürgmann, R., 2000. Mobility of the Continental Mantle: Evidence from Postseismic Geodetic Observations Following the 1992 Landers Earthquake. J. Geophys. Res., 105(B4): 8035-8054. doi: 10.1029/1999JB900380

Reilinger, R.E., Ergintav, S., Burgmann, R., et al., 2000. Coseismic and Postseismic Fault Slip for the 17 August 1999, M=7.5, Izmit, Turkey Earthquake. Science, 289: 1519-1523. doi:10.1126/ SCIENCE.289.5484.1519

Ryder, I., Parsons, B., Wright, T.J., et al., 2007. Post-Seismic Motion Following the 1997 Manyi (Tibet) Earthquake: InSAR Observations and Modeling. Geophys. J. Int., 169: 1009-1027. doi:10.1111/j.1365 -246X.2006.03312.x

Segall, P., Davis, J.L., 1997. GPS Applications for Geodynamics and Earthquake Studies. Ann. Rev. Earth Planet. Sci., 25: 301-36. doi: 10.1146/annurev.earth.25.1.301

Shao, Z.G., Wang, R.J., Wu, Y.Q., et al., 2011. Rapid Afterslip and Short-Term Viscoelastic Relaxation Following the 2008 Mw7.9 Wenchuan Earthquake. Earthq. Sci., 24: 163-175. doi:10.1007/ s11589-010-0781-z

Shen, Z.K., Lü, J.N., Wang, M., et al., 2005. Contemporary Crustal Deformation around the Southeast Borderland of the Tibetan Plateau. J. Geophys. Res., 110, B11409. doi: 10.1029/2004JB003421

Wang, R., Roth, F., Lorenzo-Martín, F., 2006. PSGRN/PSCMP—A New Code for Calculating Co- and Post-Seismic Deformation, Geoid and Gravity Changes Based on the Viscoelastic-Gravitational Dislocation Theory. Computers and Geosciences, 32(4): 527-541. doi: 10.1016/j.cageo.2005.08.006

Wang, W.M., Hao, J.L., Yao, Z.X., 2013. Preliminary Result for Rupture Process of Apr. 20, 2013, Lushan Earthquake, Sichuan, China. Chinese J. Geophys., 56(4): 1412-1417 (in Chinese with English abstract). doi: 10.6038/cjg20130436

Wu, Y.Q., Jiang, Z.S., Wang, M., et al., 2013. Preliminary Results of the Co-Seismic Displacement and Pre-Seismic Strain Accumulation of the Lushan Ms7.0 Earthquake Reflected by the GPS Surveying. Chin. Sci. Bull., 58(20): 1910-1916 (in Chinese). doi: 10.1007/s11434-013-5998-5

Xie, Z.J., Jin, B.K., Zheng, Y., et al., 2013. Source Parameters Inversion of the 2013 Lushan Earthquake by Combining Teleseismic Waveforms and Local Seismograms. Science in China (Series D), 43: 1010-1019 (in Chinese). doi: 10.1007/s11430-013-4640-3

Xu, X.W., Chen, G.H., Yu, G.H., et al., 2013. Seismogenic Structure of Lushan Earthquake and Its Relationship with Wenchuan Earthquake. Earth Science Frontiers, 20(3): 11-20 (in Chinese with English abstract). http://d.wanfangdata.com.cn/Periodical/dxqy201303002

Zeng, X.F., Luo, Y., Han, L.B., et al., 2013. The Lushan Ms7.0 Earthquake on 20 April 2013: A High-Angle Thrust Event. Chinese J. Geophys., 56(4): 1418-1424 (in Chinese with English abstract). doi:10.6038/ cjg20130437

Zhang, C.J., Shi, Y.L., Ma, L., 2009. Numerical Simulation of Crust Rheological Property Reflected by Post-Seismic Deformation of Kunlun Large Earthquake. Rock and Soil Mechanics, 30(9): 2552-2558 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-YTLX200909005.htm

Zhang, Y., Xu, L.S., Chen, Y.T., 2013. Rupture Process of the Lushan 4.20 Earthquake and the Preliminary Analysis on the Disaster-Causing Mechanism. Chinese J. Geophys., 56(4): 1408-1411 (in Chinese with English abstract). doi: 10.6038/cjg20130435

Zhou, Q.Y., 2011. Crustal Structure of South Longmenshan Fault Zone from Teleseismic Receive Functions (Dissertation). Institute of Earthquake Science, China Earthquake Administration, Beijing (in Chinese with English abstract).

刁法启, 2011. 基于GPS观测的同震、震后形变研究(博士学位论文). 武汉: 中国科学院测量与地球物理研究所.

杜方, 龙锋, 阮祥, 等, 2013. 四川芦山7.0级地震及其与汶川8.0级地震的关系. 地球物理学报, 56(5): 1772-1783. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201305036.htm

刘成利, 郑勇, 葛粲, 等, 2013.2013年芦山7.0级地震的动态破裂过程. 中国科学(D辑), 43(6): 1020-1026. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201306010.htm

刘杰, 易桂喜, 张致伟, 等, 2013.2013年4月20日四川芦山Ms7.0地震介绍. 地球物理学报, 56(4): 1404-1407.

龙锋, 倪四道, 闻学泽, 2011. 用远震接收函数研究龙门山断裂带与其邻区的莫霍面深度及波速比分布. 地球学报, 32(4): 438-446. doi: 10.3975/cagsb.2011.04.07

吕坚, 王晓山, 苏金蓉, 等, 2013. 芦山7.0级地震序列的震源位置与震源机制解特征. 地球物理学报, 56(5): 1753-1763. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201305034.htm

王卫民, 郝金来, 姚振兴, 2013.2013年4月20日四川芦山地震震源破裂过程反演初步结果. 地球物理学报, 56(4): 1412-1417. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201304038.htm

武艳强, 江在森, 王敏, 等. 2013. GPS监测的芦山7.0级地震前应变积累及同震位移场初步结果. 科学通报, 58(20): 1910-1916. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB201320005.htm

谢祖军, 金笔凯, 郑勇, 等, 2013. 近远震波形反演2013年芦山地震震源参数. 中国科学(D辑), 43: 1010-1019. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201306009.htm

徐锡伟, 陈桂华, 于贵华, 等, 2013. 芦山地震发震构造及其与汶川地震关系讨论. 地学前缘, 20(3): 11-20. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201303002.htm

曾祥方, 罗艳, 韩立波, 等. 2013.2013年4月20日四川芦山MS7.0地震: 一个高角度逆冲地震. 地球物理学报, 56(4): 1418-1424. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201304039.htm

张晁军, 石耀林, 马丽, 2009. 昆仑山大地震震后形变反映的地壳岩石流变特性. 岩土力学, 30(9): 2552-2558. doi: 10.3969/j.issn.1000-7598.2009.09.002

张勇, 许力生, 陈运泰, 2013. 芦山4.20地震破裂过程及其致灾特征初步分析. 地球物理学报, 56(4): 1408-1411. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201304037.htm

周青云, 2011. 龙门山断裂带南段地壳的接收函数方法研究(硕士论文). 北京: 中国地震局地震预测研究所.

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Theoretical Simulation of Co-Seismic and Post-Seismic Deformations and Gravity Changes of Lushan Earthquake

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