汶川MS8.0地震及余震序列重新定位

Abstract

Abstract: From the origin time of May 12, 2008, M_S8.0 Wenchuan earthquake to Dec.31, 2008, more than 10000 aftershocks(M≥2.0) had been recorded by the seismic network in Sichuan and the surrounding provinces. In the paper, the main shock and more than 7000 aftershocks were relocated using the double difference algorithm. The results show that the length of aftershock distribution is about 350 km. In the southwest, the distribution of aftershocks is along the Back-range, the Central and the Front-range of the Longmenshan fault. In the middle, the distribution of aftershocks is along the Central fault. In the North, the aftershocks distributed across the Qingchuanr-Pingwu fault. The depths of aftershocks mainly located in the 10~20 km, and the average depth of aftershocks is 13 km after relocation.

Key words: Earthquake location, Double difference algorithm, Wenchuan M_S8.0 earthquake

CLC Number:

P315

ZHAO Bo, SHI Yu-tao, GAO Yuan. Relocation of the Wenchuan M_S8.0 Earthquake Sequence[J]. EARTHQUAKE, 2011, 31(2): 1-10.

References

[1] Waldhauser F, Ellsworth L W. A Double-Difference Earthquake Location Algorithm: Method and Application to the Northern Hayward Fault[J]. California Bulletin of the Seismological Society of America, 2000, 6(90): 1353-1368.
[2] 朱艾斓, 徐锡伟, 刁桂苓, 等. 汶川M_S8.0地震部分余震重新定位及地震构造初步分析[J]. 地震地质, 2008, 30(3): 759-767.
[3] 黄媛, 吴建平, 张天中, 等. 汶川8.0 级大地震及其余震序列重定位研究[J]. 中国科学D辑: 地球科学, 2008, 38(10): 1-8.
[4] 吕坚, 苏金蓉, 靳玉科, 等. 汶川8.0级地震序列重新定位及其发震构造初探[J]. 地震地质, 2008, 30(4): 917-925.
[5] 陈九辉, 刘启元, 李顺成, 等. 汶川M_S8.0地震余震序列重新定位及其地震构造研究[J]. 地球物理学报, 2009, 52(2): 390-397.
[6] 王卫民, 赵连锋, 李娟, 等. 四川汶川8.0级地震震源过程[J]. 地球物理学报, 2008, 51(5): 1403-1410.
[7] 徐锡伟, 闻学泽, 叶建青, 等. 汶川M_S8.0地震地表破裂带及其发震构造[J]. 地震地质, 2008, 30(3): 597-629.
[8] 邓起东, 张培震, 冉勇康, 等. 中国活动构造基本特征[J]. 科学通报(D 辑), 2002, 32(12): 1020-1030.
[9] 唐荣昌, 韩渭宾. 四川活动断裂与地震[M]. 北京: 地震出版社, 1993, 368.
[10] 赵珠, 范军, 郑斯华, 等. 龙门山断裂带地壳速度结构和震源位置的精确修订[J]. 地震学报, 1997, 19(6): 615-622.
[11] 华卫, 陈章立, 李志雄, 等. 汶川8.0级地震触发与余震活动间分布研究[J]. 地震, 2009, 29(1): 33-39.
[12] 陈翰林, 赵翠萍, 修济钢, 等. 龙滩水库地震精定位及活动特征研究[J]. 地球物理学报, 2009, 52(8): 2035-2043.
[13] 楼海, 王椿镛, 吕智勇, 等. 2008年汶川M_S8.0地震的深部构造环境远震P波接收函数和布格重力异常的联合解释[J]. 中国科学D辑: 地球科学. 2008, 38: 1027-1220.
[14] 雷建设, 赵大鹏, 苏金蓉, 等. 龙门山断裂带地壳精细结构与汶川地震发震机理[J]. 地球物理学报, 2009, 52(2): 339-345.
[15] 邓起东, 陈社发, 赵小麟. 龙门山及其邻区的构造和地震活动及动力学[J]. 地震地质, 1994, 16(4): 389-403.
[16] 杨智娴, 于湘伟, 郑月军, 等. 中国中西部地区地震的重新定位和三维地壳速度结构[J]. 地震学报, 2004, 26(1): 19-29.
[17] 刘启元, 李昱, 陈九辉, 等. 汶川M_S8.0地震: 地壳上地幔S波速度结构的初步研究[J]. 地球物理学报, 2009, 52(2): 309-319.
[18] 中国地震局监测预报司. 汶川8.0级地震科学研究报告[M]. 北京: 地震出版社, 2009, 15-38.
[19] 张培震, 徐锡伟, 闻学泽, 等. 2008年汶川8.0级地震发震断裂的滑动速率、复发周期和构造成因[J]. 地球物理学报, 2008, 51(4): 1066-1073.
[20] 陈运泰, 许力生, 张勇, 等. 2008年5月12日汶川特大地震震源特性分析报告[R]. 2008. http://www.csi.ac.cn/Sichuan/chenyuntai.pdf (in Chinese).
[21] 胡幸平, 俞春泉, 陶开, 等. 利用P波初动资料求解汶川地震及其强余震震源机制解[J]. 地球物理学报, 2008, 51(6): 1711-1718.
[22] 郑勇, 马宏生, 吕坚, 等. 汶川地震强余震(M_S≥5.6)的震源机制解及其与发震构造的关系[J]. 中国科学D辑: 地球科学, 2009, 39(4): 413-426.

Relocation of the Wenchuan M_S8.0 Earthquake Sequence

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	ZHANG Yu-cheng, HUA Wei. Phase Picking and Earthquake Location based on Deep Learning in the Baihetan Reservior Area [J]. EARTHQUAKE, 2023, 43(1): 137-151.
[2]	SONG Cheng, ZHANG Yong-xian, XIA Cai-yun, ZHANG Xiao-tao. Long-term Ionospheric Evolution Characteristics Associated with the 2008 Wenchuan M_S8.0 Earthquake using Modified Pattern Informatics [J]. EARTHQUAKE, 2019, 39(2): 135-146.
[3]	LI Yan-e, CHEN Xue-zhong. Coulomb Stress Changes Imparted in the Rupture Zones of the Lushan Earthquake and the Kangding Earthquake by the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2019, 39(1): 136-145.
[4]	WU Shan-yi, LIU Qi, GONG Li-wen, ZHANG Zhi-guang. High-Frequency Anormaly Characteristics of Fixed-point Deformation before the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 145-156.
[5]	CHEN Xue-zhong, WANG Heng-xin, WANG Sheng-wen, WEI Yong-gang, GUO Xiang-yun, CHEN Li-juan, LI Yan-e. Effect of the Earth Rotation Deceleration on the Occurrence of the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 127-136.
[6]	XI Ji-lou, GUAN Hua-ping, ZHUANG Nan, LIU Chao, WU Jian-hua, YAN Xiao-ye. Immediate to Long-term Changes of Geoelectric Potential Difference before and after Several Large Earthquakes [J]. EARTHQUAKE, 2018, 38(2): 117-126.
[7]	QIAN Jia-dong, ZHANG Xue-min, WANG Ya-lu, LI Xue-hao. Simulation of the Geo-electricity Anomaly in the NE Direction at Chengdu Station Associated with the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 107-116.
[8]	DONG Yan-fang, HONG Shun-ying, MENG Guo-jie. Post-seismic Surface Deformation of the 2008 Wenchuan M_S8.0 Earthquake based on PSInSAR [J]. EARTHQUAKE, 2018, 38(2): 95-106.
[9]	ZHANG Xiao-tao, LIU Jie, SONG Zhi-ping, XUE Yan, ZHANG Yong-xian, YAN Rui, YUAN Zheng-yi. Temporal and Spatial Evolution of Precursory Anomalies of the 2008 Wenchuan M_S8.0 Earthquake and Mechanical Analysis [J]. EARTHQUAKE, 2018, 38(2): 72-83.
[10]	MENG Guo-jie, SU Xiao-ning, WANG Zhen, LIAO Hua. Joint Inversion for the Rupture Process of the 2008 Wenchuan M_S8.0 Earthquake from 1 Hz GPS, Strong Motion and Teleseismic Data [J]. EARTHQUAKE, 2018, 38(2): 11-27.
[11]	SHAO Zhi-gang, WANG Peng. Reflections on Earthquake Prediction Research Ten Years after the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 1-10.
[12]	LI Mei, WANG Zhong-ping, LU Jun, TAN Han-dong, ZHANG Xiao-tao. Estimating the Equivalent Dipole of the 2008 Wenchuan M_S8.0 Earthquake using Observed Electromagnetic Ground Signals [J]. EARTHQUAKE, 2018, 38(1): 49-60.
[13]	JIN Chun-hua, HE Qiu-ju, CAI Xin-hua, TIAN Xiao-hui. Application of a New Crustal Velocity Model in Earthquake Location in Ningxia [J]. EARTHQUAKE, 2015, 35(2): 51-60.
[14]	JIN Wei-jun, ZHANG Heng, ZHANG Wen-hui, DUAN Xin-biao, LIU Wei. Technology and Application of Micro-seismic Monitoring [J]. EARTHQUAKE, 2013, 33(4): 84-96.
[15]	ZHANG Xiao-tao, HAN Li-ping, WAN Xiao-shan, ZHANG Shuang-feng, YANG Ya-qiong. Simultaneous Inversion of Earthquake Sequence Loca- tions and Velocity Strcture in the Juncture of Shanxi, Hebei, Shandong and Henan Provinces [J]. EARTHQUAKE, 2011, 31(4): 26-35.

Relocation of the Wenchuan MS8.0 Earthquake Sequence

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

Relocation of the Wenchuan M_S8.0 Earthquake Sequence