汶川地震孕震背景与同震变化的铲形断层位错模拟
|
摘要
利用1983—1997、1997(或2007)—2008年跨龙门山断裂带长水准剖面观测资料,借助纯逆断、铲形断层正负位错模型与网格搜索试错法,模拟2008年5月12日四川省汶川县8.0级特大地震前闭锁背景与同震变化,在一定程度上反映出龙门山中央断裂震前应变能积累、震时反弹的特性。
Using long-leveling section observation data crossing Longmenshan fault during the period of 1983-1997 and 1997(or 2007)-2008,aided by positive and negative dislocation model of pure thrust and spade-fault,in combination with the method for grid-searching and testing,the authors simulated the locked energy background before the Wenchuan Ms8.0 great earthquake of Sichuan Province on 12 May,2008 and its co-seismic deformation.The energy accumulation before this earthquake and co-seismic rebounding of Central Longmenshan fault are revealed to some extent.
Using long-leveling section observation data crossing Longmenshan fault during the period of 1983-1997 and 1997(or 2007)-2008,aided by positive and negative dislocation model of pure thrust and spade-fault,in combination with the method for grid-searching and testing,the authors simulated the locked energy background before the Wenchuan Ms8.0 great earthquake of Sichuan Province on 12 May,2008 and its co-seismic deformation.The energy accumulation before this earthquake and co-seismic rebounding of Central Longmenshan fault are revealed to some extent.
引文
邓起东,张培震,冉勇康,杨晓平,闵伟,楚全芝.2002.中国活动构造基本特征[J].中国科学(D辑),32(12):1020-1030.
董树文,张岳桥,龙长兴,吴珍汉,安美建,张永双,杨农,陈正乐,雷伟志,施炜,石菊松.2008.四川汶川Ms8.0级地震地表破裂构造初步调查与发震背景分析[J].地球学报,29(3):392-396.
高锐,熊小松,李秋生,卢占武.2009.由地震探测揭示的青藏高原莫霍面深度[J].地球学报,30(6):761-773.
强祖基,姚清林,魏乐军,曾佐勋,郭坚峰.2009.从震前卫星热红外图像看中国现今构造应力场特征[J].地球学报,30(6):873-884.
魏乐军,郭坚峰,蔡慧,李海兵,强祖基.2008.卫星热红外异常——四川汶川Ms8.0级大地震的短临震兆[J].地球学报,29(5):583-591.
伍吉仓,陈永奇.2000.一种板块边界断层运动的力学模型[J].地壳形变与地震,20(2):8-14.
王卫民,赵连锋,李娟,姚振兴.2008.四川汶川Ms8.0级地震震源过程[J].地球物理学报,51(5):1403-1410.
中国地震局监测预报司.2008.汶川8.0级地震科学研究报告[M].北京:地震出版社:19-21,39.
张四新,张希,王双绪,薛富平,刘立炜.2008.汶川8.0级地震前后地壳垂直形变分析[J].大地测量与地球动力学,28(6):43-46.
张希,江在森,王琪,王双绪,张晓亮.2003.1999～2001年青藏块体东北缘地壳水平运动的非震反位错模型及变形分析[J].地震学报,25(4):374-381.
张希,张四新,王双绪.2004.昆仑山口西8.1级地震前后地壳垂直运动的负位错模型[J].地震研究,27(2):153-158.
张希,王双绪,郭良迁,张四新,张晓亮,焦青,刘峡.2009.活动断裂带构造变形动态特征及地震危险性研究[M].国家“十一五”科技支撑项目子专题研究报告:1-109.
张希,王双绪,张晓亮,崔笃信,王文萍,张四新,薛富平.2010.昆仑山与汶川强烈地震对青藏块体东北缘地壳运动及应变积累的影响[J].地球学报,31(1):32-42.
DENG Qi-dong,ZHANG Pei-zhen,RAN Yong-kang,YANG Xiao-ping,MIN Wei,CHU Quan-zhi.2002.Basic characteris-tics of active tectonics in China[J].Science in China(series D),32(12):1020-1030(in Chinese with English abstract).
DONG Shu-wen,ZHANG Yue-qiao,LONG Chang-xing,WU Zhen-han,AN Mei-jian,ZHANG Yong-shuang,YANG Nong,CHEN Zheng-le,LEI Wei-zhi,SHI Wei,SHI Ju-song.2008.Surface rupture investigation of the Wenchuan Ms8.0 earthquake of May 12,2008,west Sichuan,and analysis of its oc-currence setting[J].Acta Geoscientica Sinica,29(3):392-396(in Chinese with English abstract).
DONG Shu-wen,ZHANG Yue-qiao,WU Zhen-han,YANG Nong,MA Yin-sheng,SHI Wei,CHEN Zheng-le,LONG Chang-xing,AN Mei-jian.2008.Surface Rupture and Co-seismic Dis-placement Produced by the Ms8.0Wenchuan Earthquake of May 12th,2008,Sichuan,China:Eastwards Growth of the Qinghai-Tibet Plateau[J].Acta Geologica Sinica-English Edition,82(5):928-938.
Edited by Monitoring and Prediction Department of CEA.2008.Science and research report on the Wenchuan Ms8.0 earthquake[M].Beijing:Seismology Press:19-21,39(in Chinese).
GAO Rui,XIONG Xiao-song,LI Qiu-sheng,LU Zhan-wu.2009.The Moho depth of Qinghai-Tibet plateau revealed by seismic detection[J].Acta Geoscientica Sinica,30(6):761-773(in Chinese with English abstract).
MATSU’URA M,JACKSON D and CHENG A.1986.Dislocation model for aseismic crustal deformation at Hollister,California[J].J.of Geophysical Research,91(B12):12,661-12,674.
OKADA Y.1985.Surface deformation due to shear and tensile faults in a half-space[J].Bulletin of the Seismological Society of America,75(4):1135-1154.
QIANG Zu-ji,YAO Qing-lin,WEI Le-jun,ZENG Zuo-xun,GUO Jian-feng.2009.The characteristic of current stress field by Satellite Thermal Infrared Image in China[J].Acta Geoscientica Sinica,30(6):873-884(in Chinese with English abstract).
WEI Le-jun,GUO Jian-feng,CAI Hui,LI Hai-bing,QIANG Zu-ji.2008.Satellite Thermal Infrared Anomaly:a Short-term and Impending Earthquake Precursor before the Wenchuan Ms8.0Earthquake in Sichuan,China[J].Acta Geoscientica Sinica,29(5):583-591(in Chinese with English abstract).
WU Ji-cang,CHEN Yong-qi.2000.A physical model for fault movement along plate boundary[J].Crustal Deformation and Earthquake,20(2):8-14(in Chinese with English abstract).
WANG Wei-min,ZHAO Lian-feng,LI Juan,YAO Zhen-xing.2008.Rupture process of the Ms8.0 Wenchuan earthquake of Si-chuan[J].Chinese Journal of Geophysis,51(5):1403-1410(in Chinese with English abstract).
ZHANG Si-xin,ZHANG Xi,WANG Shuang-xu,XUE Fu-ping,LIU Li-wei.2008.Analysis of crustal vertical deformation before and after Wenchuan Ms8.0earthquake[J].Journal of Geodesy and Geodynamics,28(6):43-46(in Chinese with English abstract).
ZHANG Xi,JIANG Zai-sen,WANG Qi,WANG Shuang-xu,ZHANG Xiao-liang.2003.Aseismic negative dislocation model and deformation analysis of1999-2001crustal horizontal movement in the northeast margin of Qinghai-Tibet block[J].Acta Seismologica Sinica,25(4):374-381(in Chinese with English abstract).
ZHANG Xi,ZHANG Si-xin,WANG Shuang-xu.2004.Negative dislocation model for vertical crustal movement before and after Ms8.1earthquake in the west of Kunlun Mountain Pass[J].Journal of Seismological Research,27(2):153-158(in Chinese with English abstract).
ZHANG Xi,WANG Shuang-xu,GUO Liang-qian,ZHANG Si-xin,ZHANG Xiao-liang,JIAO Qing,LIU Xia.2009.Research on dynamic features of tectonic deformation of active fractures and earthquake risk[M].The report of subject of State science and technology support project:1-109.
ZHANG Xi,WANG Shuang-xu,ZHANG Xiao-liang,CUI Du-xin,WANG Wen-ping,ZHANG Si-xin,XUE Fu-ping.2010.The influence of the Kunlun mountains and Enchuan strong earthquakes on the crustal movement and strain accumulation in the northeastern margin of Qinghai-Xizang block[J].Acta Geoscientica Sinica,31(1):32-42(in Chinese with English abstract).
董树文,张岳桥,龙长兴,吴珍汉,安美建,张永双,杨农,陈正乐,雷伟志,施炜,石菊松.2008.四川汶川Ms8.0级地震地表破裂构造初步调查与发震背景分析[J].地球学报,29(3):392-396.
高锐,熊小松,李秋生,卢占武.2009.由地震探测揭示的青藏高原莫霍面深度[J].地球学报,30(6):761-773.
强祖基,姚清林,魏乐军,曾佐勋,郭坚峰.2009.从震前卫星热红外图像看中国现今构造应力场特征[J].地球学报,30(6):873-884.
魏乐军,郭坚峰,蔡慧,李海兵,强祖基.2008.卫星热红外异常——四川汶川Ms8.0级大地震的短临震兆[J].地球学报,29(5):583-591.
伍吉仓,陈永奇.2000.一种板块边界断层运动的力学模型[J].地壳形变与地震,20(2):8-14.
王卫民,赵连锋,李娟,姚振兴.2008.四川汶川Ms8.0级地震震源过程[J].地球物理学报,51(5):1403-1410.
中国地震局监测预报司.2008.汶川8.0级地震科学研究报告[M].北京:地震出版社:19-21,39.
张四新,张希,王双绪,薛富平,刘立炜.2008.汶川8.0级地震前后地壳垂直形变分析[J].大地测量与地球动力学,28(6):43-46.
张希,江在森,王琪,王双绪,张晓亮.2003.1999～2001年青藏块体东北缘地壳水平运动的非震反位错模型及变形分析[J].地震学报,25(4):374-381.
张希,张四新,王双绪.2004.昆仑山口西8.1级地震前后地壳垂直运动的负位错模型[J].地震研究,27(2):153-158.
张希,王双绪,郭良迁,张四新,张晓亮,焦青,刘峡.2009.活动断裂带构造变形动态特征及地震危险性研究[M].国家“十一五”科技支撑项目子专题研究报告:1-109.
张希,王双绪,张晓亮,崔笃信,王文萍,张四新,薛富平.2010.昆仑山与汶川强烈地震对青藏块体东北缘地壳运动及应变积累的影响[J].地球学报,31(1):32-42.
DENG Qi-dong,ZHANG Pei-zhen,RAN Yong-kang,YANG Xiao-ping,MIN Wei,CHU Quan-zhi.2002.Basic characteris-tics of active tectonics in China[J].Science in China(series D),32(12):1020-1030(in Chinese with English abstract).
DONG Shu-wen,ZHANG Yue-qiao,LONG Chang-xing,WU Zhen-han,AN Mei-jian,ZHANG Yong-shuang,YANG Nong,CHEN Zheng-le,LEI Wei-zhi,SHI Wei,SHI Ju-song.2008.Surface rupture investigation of the Wenchuan Ms8.0 earthquake of May 12,2008,west Sichuan,and analysis of its oc-currence setting[J].Acta Geoscientica Sinica,29(3):392-396(in Chinese with English abstract).
DONG Shu-wen,ZHANG Yue-qiao,WU Zhen-han,YANG Nong,MA Yin-sheng,SHI Wei,CHEN Zheng-le,LONG Chang-xing,AN Mei-jian.2008.Surface Rupture and Co-seismic Dis-placement Produced by the Ms8.0Wenchuan Earthquake of May 12th,2008,Sichuan,China:Eastwards Growth of the Qinghai-Tibet Plateau[J].Acta Geologica Sinica-English Edition,82(5):928-938.
Edited by Monitoring and Prediction Department of CEA.2008.Science and research report on the Wenchuan Ms8.0 earthquake[M].Beijing:Seismology Press:19-21,39(in Chinese).
GAO Rui,XIONG Xiao-song,LI Qiu-sheng,LU Zhan-wu.2009.The Moho depth of Qinghai-Tibet plateau revealed by seismic detection[J].Acta Geoscientica Sinica,30(6):761-773(in Chinese with English abstract).
MATSU’URA M,JACKSON D and CHENG A.1986.Dislocation model for aseismic crustal deformation at Hollister,California[J].J.of Geophysical Research,91(B12):12,661-12,674.
OKADA Y.1985.Surface deformation due to shear and tensile faults in a half-space[J].Bulletin of the Seismological Society of America,75(4):1135-1154.
QIANG Zu-ji,YAO Qing-lin,WEI Le-jun,ZENG Zuo-xun,GUO Jian-feng.2009.The characteristic of current stress field by Satellite Thermal Infrared Image in China[J].Acta Geoscientica Sinica,30(6):873-884(in Chinese with English abstract).
WEI Le-jun,GUO Jian-feng,CAI Hui,LI Hai-bing,QIANG Zu-ji.2008.Satellite Thermal Infrared Anomaly:a Short-term and Impending Earthquake Precursor before the Wenchuan Ms8.0Earthquake in Sichuan,China[J].Acta Geoscientica Sinica,29(5):583-591(in Chinese with English abstract).
WU Ji-cang,CHEN Yong-qi.2000.A physical model for fault movement along plate boundary[J].Crustal Deformation and Earthquake,20(2):8-14(in Chinese with English abstract).
WANG Wei-min,ZHAO Lian-feng,LI Juan,YAO Zhen-xing.2008.Rupture process of the Ms8.0 Wenchuan earthquake of Si-chuan[J].Chinese Journal of Geophysis,51(5):1403-1410(in Chinese with English abstract).
ZHANG Si-xin,ZHANG Xi,WANG Shuang-xu,XUE Fu-ping,LIU Li-wei.2008.Analysis of crustal vertical deformation before and after Wenchuan Ms8.0earthquake[J].Journal of Geodesy and Geodynamics,28(6):43-46(in Chinese with English abstract).
ZHANG Xi,JIANG Zai-sen,WANG Qi,WANG Shuang-xu,ZHANG Xiao-liang.2003.Aseismic negative dislocation model and deformation analysis of1999-2001crustal horizontal movement in the northeast margin of Qinghai-Tibet block[J].Acta Seismologica Sinica,25(4):374-381(in Chinese with English abstract).
ZHANG Xi,ZHANG Si-xin,WANG Shuang-xu.2004.Negative dislocation model for vertical crustal movement before and after Ms8.1earthquake in the west of Kunlun Mountain Pass[J].Journal of Seismological Research,27(2):153-158(in Chinese with English abstract).
ZHANG Xi,WANG Shuang-xu,GUO Liang-qian,ZHANG Si-xin,ZHANG Xiao-liang,JIAO Qing,LIU Xia.2009.Research on dynamic features of tectonic deformation of active fractures and earthquake risk[M].The report of subject of State science and technology support project:1-109.
ZHANG Xi,WANG Shuang-xu,ZHANG Xiao-liang,CUI Du-xin,WANG Wen-ping,ZHANG Si-xin,XUE Fu-ping.2010.The influence of the Kunlun mountains and Enchuan strong earthquakes on the crustal movement and strain accumulation in the northeastern margin of Qinghai-Xizang block[J].Acta Geoscientica Sinica,31(1):32-42(in Chinese with English abstract).
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心