Access the full text.
Sign up today, get DeepDyve free for 14 days.
Zhongjie Zhang, Yanghua Wang, Yun Chen, G. Houseman, Xiaobo Tian, E. Wang, J. Teng (2009)
Crustal structure across Longmenshan fault belt from passive source seismic profilingGeophysical Research Letters, 36
Zhao Zhao, Mishra Mishra, Sanda Sanda (2002)
Influence of fluids and magma on earthquakes: seismological evidenceEarth and planetary science letters, 132
J. Hubbard, J. Shaw, Y. Klinger (2010)
Structural Setting of the 2008 Mw 7.9 Wenchuan, China, EarthquakeBulletin of the Seismological Society of America, 100
Dapeng Zhao, A. Hasegawa, H. Kanamori (1994)
Deep structure of Japan subduction zone as derived from local, regional, and teleseismic eventsJournal of Geophysical Research, 99
Hubbard Hubbard, Shaw Shaw, Klinger Klinger (2010)
Structural setting of the 2008 M w 7.9 Wenchuan earthquake, ChinaBulletin of the Seismological Society of America, 100
R. Sibson (1992)
Implications of fault-valve behaviour for rupture nucleation and recurrenceTectonophysics, 211
Unsworth Unsworth, Jones Jones, Wei Wei, Marquis Marquis, Gokarn Gokarn, Spratt Spratt, Bedrosian Bedrosian, Booker Booker, Leshou Leshou, Clarke Clarke, Shenghui Shenghui, Chanhong Chanhong, Ming Ming, Sheng Sheng, Solon Solon, Handong Handong, Ledo Ledo, Roberts Roberts (2005)
Crustal rheology of the Himalaya and Southern Tibet inferred from Magnetotelluric dataNature, 433
Denghai Bai, M. Unsworth, M. Meju, Xiaobing Ma, J. Teng, X. Kong, Yi Sun, Jie Sun, Lifeng Wang, Chaosong Jiang, Ciping Zhao, P. Xiao, Mei Liu (2010)
Crustal deformation of the eastern Tibetan plateau revealed by magnetotelluric imagingNature Geoscience, 3
T. Parsons, C. Ji, E. Kirby (2008)
Stress changes from the 2008 Wenchuan earthquake and increased hazard in the Sichuan basinNature, 454
Yan Yan, Guoze Guoze, Martyn Martyn, Lifeng Lifeng, Xiaobin Xiaobin, Tao Tao, Qibin Qibin, Jijun Jijun, Ji Ji, Juntao Juntao, Yuanzhao Yuanzhao (2013)
Deep structure beneath the southwestern section of the Longmenshan faults and Lushan M s7.0 earthquake on 20 April 2013Acta Geologica Sinica (English edition), 87
S. Toda, Jian Lin, M. Meghraoui, R. Stein (2008)
12 May 2008 M = 7.9 Wenchuan, China, earthquake calculated to increase failure stress and seismicity rate on three major fault systemsGeophysical Research Letters, 35
Chunyong Chunyong, Jianping Jianping, Hai Hai, Mindu Mindu, Zhiming Zhiming (2003)
P‐wave crustal velocity structure in western Sichuan and eastern Tibetan regionScience in China (Series D), 33
Jisheng Jisheng, Rui Rui, Lingsen Lingsen, Qiusheng Qiusheng, Ye Ye, Rizheng Rizheng, Haiyan Haiyan, Zhanwu Zhanwu (2009)
Relationship between characteristics of gravity and magnetic anomalies and the earthquakes in Longmenshan range and adjacent areasChinese Journal Geophysics, 52
Burchfiel (2008)
A geological and geophysical context for the Wenchuan earthquake of 12 May 2008, Sichuan, People's Republic of ChinaGeological Society of America Today, 18
Bo Bo, Yuan Yuan, Zhibin Zhibin, Xu Xu, Dahu Dahu (2013)
Double difference relocation, focal mechanism and stress inversion of Lushan M s 7.0 earthquake sequenceChinese Journal Geophysics, 56
Yuntai (2013)
A brief talk on the 20 April 2013 Lushan Mw6.7 earthquakeActa Seismologica Sinica (in Chinese), 35
J. Hubbard, J. Shaw (2009)
Uplift of the Longmen Shan and Tibetan plateau, and the 2008 Wenchuan (M = 7.9) earthquakeNature, 458
L. Royden, B. Burchfiel, Robert King, Erchie Wang, Zhiliang Chen, Feng Shen, Yuping Liu (1997)
Surface Deformation and Lower Crustal Flow in Eastern TibetScience, 276 5313
Xiaofeng Xiaofeng (1995)
A discussion on the Formation‐Mechanism of the Shuangshi Nappe structure in Longmen Mountains, SichuanJournal of Chengdu Universtity of Technology, 22
Zhang Yueqiao, Dong Shuwen, Hou Chuntang, Shi Jusong, Wu Zhonghai, Lin Hailong, S. Ping, L. Gang, Li Jian (2013)
Seismogenic Structure of the April 20, 2013, Lushan Ms7 Earthquake in SichuanActa Geologica Sinica ‐ English Edition, 87
Jinli Huang, Dapeng Zhao (2004)
Crustal heterogeneity and seismotectonics of the region around Beijing, ChinaTectonophysics, 385
M. Clark, L. Royden (2000)
Topographic ooze: Building the eastern margin of Tibet by lower crustal flowGeology, 28
Chun Yong Chun Yong, Hai Hai, Zhiyong Zhiyong, Jianping Jianping, Lijun Lijun, Shigui Shigui, Huichuan Huichuan, Fangtou Fangtou, Zhu Zhu, Silver Silver (2008)
S‐wave crustal and upper mantle s velocity structure in the eastern Tibet Plateau‐Deep environment of lower crustal flowScience in China (Series D), 51
Qidong (1994)
Tectonics, Seismicity and geodynamics of the Longmenshan Mountains and its adjacent regionsSeismology and Geology (in Chinese), 16
Xiwei Xiwei, Guihua Guihua, Guihua Guihua, Jjia Jjia, Xibin Xibin, Ailan Ailan, Xueze Xueze (2013)
Seismogenic structure of the Lushan earthquake and its relationship with the Wen‐chuan earthquakeEarth Science Frontiers, 20
H. Katao, N. Maeda, Y. Hiramatsu, Y. Iio, S. Nakao (1997)
Detailed Mapping of Focal Mechanisms in/around the 1995 Hyogo-ken Nanbu Earthquake Rupture ZoneJournal of physics of the earth, 45
S. Hickman, R. Sibson, R. Bruhn (1995)
Introduction to Special Section: Mechanical Involvement of Fluids in FaultingJournal of Geophysical Research, 100
Z. Yang, F. Waldhauser, Y. Chen, P. Richards (2005)
Double-difference relocation of earthquakes in central-western China, 1992–1999Journal of Seismology, 9
Zhansheng Zhansheng, Guoze Guoze, Ji Ji, Xiaobin Xiaobin, Lifeng Lifeng, Qibin Qibin, Yan Yan, Jijun Jijun, Weimao Weimao, Juntao Juntao (2010)
The electrical structure of the crust along Mianning‐Yibin profile in the eastern edge of Tibetan plateau and its tectonic implicationsChinese Journal Geophysics, 53
Dapeng Zhao (2001)
New advances of seismic tomography and its applications to subduction zones and earthquake fault zones: A reviewIsland Arc, 10
Qiyuan Qiyuan, Yu Yu, Jiuhui Jiuhui, Biao Biao, Shuncheng Shuncheng, Jun Jun, Xuqi Xuqi, Shao Hua Shao Hua (2009)
Wenchuan Ms8.0 earthquake: preliminary study of the S‐wave velocity structure of the crust and upper mantleChinese Journal Geophysics, 52
Jianshe Jianshe, Dapeng Dapeng (2009)
Structural heterogeneity of the Longmenshan fault zone and the mechanism of the 2008 Wenchuan earthquake (Ms 8Geochemistry Geophysics Geosystems, 10
Dapeng Zhao, A. Hasegawa, S. Horiuchi (1992)
Tomographic imaging of P and S wave velocity structure beneath northeastern JapanJournal of Geophysical Research, 97
Guoze Guoze, Xiaobin Xiaobin, Lifeng Lifeng (2008)
Evidence of crustal “channel flow” in eastern margin of Tibet plateau from MT measurementsChinese Science Bulletin, 52
Qi Liu, R. Hilst, Yu Li, Hua Yao, Jiuhui Chen, B. Guo, S. Qi, Jun Wang, Hui Huang, Shun-cheng Li (2014)
Eastward expansion of the Tibetan Plateau by crustal flow and strain partitioning across faultsNature Geoscience, 7
Um Um, Thurber Thurber (1987)
A fast algorithm for two‐point seismic ray tracingBulletin of the Seismological Society of America, 70
Yan Yan, Guoze Guoze, Martyn. Martyn., Lifeng Lifeng, Xiaobin Xiaobin, Tao Tao, Qibin Qibin, Jijun Jijun, Ji Ji, Juntao Juntao, Yanzhao Yanzhao (2013)
Deep structure beneath the southwestern section of the Longmenshan fault zone and seimogenic context of the 4.20 Lushan Ms7.0 earthquakeChinese Science Bulletin, 58
詹艳, 赵国泽, Unsworth Martyn, 王立凤, 陈小斌, 李涛, 肖骑彬, 王继军, 汤吉, 蔡军涛, 王阎昭 (2013)
龙门山断裂带西南段4.20芦山7.0级地震区的深部结构和孕震环境Chinese Science Bulletin, 58
Assoc Comput Math Transaction Mathematical Software, 8
Guixi Guixi, Xueze Xueze, Hua Hua, Huizhen Huizhen, Siwei Siwei, Yue Yue (2013)
Stress state and strong earthquake potential on the southern segment of the Longmenshan fault zoneChinese Journal Geophysics, 56
Chun-yong Wang, Wei-bin Han, Jian-ping Wu, Hai Lou, W. Chan (2007)
Crustal structure beneath the eastern margin of the Tibetan Plateau and its tectonic implicationsJournal of Geophysical Research, 112
Guoze Zhao, M. Unsworth, Y. Zhan, Lifeng Wang, Xiaobin Chen, Alan Jones, Ji Tang, Q. Xiao, Jijun Wang, Juntao Cai, Tao Li, Yanzhao Wang, Jihong Zhang (2012)
Crustal structure and rheology of the Longmenshan and Wenchuan Mw 7.9 earthquake epicentral area from magnetotelluric dataGeology, 40
Lili Xu, S. Rondenay, R. Hilst (2007)
Structure of the crust beneath the southeastern Tibetan Plateau from teleseismic receiver functionsPhysics of the Earth and Planetary Interiors, 165
Mian Liu, G. Luo, Hui Wang (2013)
The 2013 Lushan Earthquake in China Tests Hazard AssessmentsSeismological Research Letters, 85
S. Nalbant, J. McCloskey (2011)
Stress evolution before and after the 2008 Wenchuan, China earthquakeEarth and Planetary Science Letters, 307
Guixi Guixi, Xueze Xueze, Hua Hua, Huizhen Huizhen, Feng Feng, Siwei Siwei (2011)
Distributions of seismicity parameters and seismic apparent stresses on the Longmenshan‐Minshan tectonic zone before the 2008 M s8.0 Wenchuan earthquakeChinese Journal Geophysics, 54
Shunping Shunping, Jinrong Jinrong, Haijiang Haijiang, Cuizhongxiong Cuizhongxiong (2013)
Fine velocity structure of the source area of Lushan M s7.0 earthquakeActa Geologica Sinica (English edition), 87
Dapeng Zhao, H. Kanamori, H. Negishi, D. Wiens (1996)
Tomography of the Source Area of the 1995 Kobe Earthquake: Evidence for Fluids at the Hypocenter?Science, 274
Jie Jie, Guangwen Guangwen, Denghai Denghai, Lifeng Lifeng (2003)
Sounding of electrical structure of the crust and upper mantle along the eastern border of Qinghai‐Tibet Plateau and its tectonic significanceScience in China (Series D), 46
Dapeng Zhao, H. Kanamori, D. Wiens (1997)
State of stress before and after the 1994 Northridge EarthquakeGeophysical Research Letters, 24
The 2,026 earthquake events registered by the Sichuan regional digital seismic network and mobile seismic array after the April 20th, 2013 Lushan earthquake and 28,188 pieces of data were selected to determine direct P waves arrival times. We applied the tomographic method to inverse the characteristics of the velocity structure for the three–dimensional (3D) P wave in the mid‐upper crust of the seismic source region of the Lushan earthquake. The imaging results were combined with the apparent magnetization inversion and magnetotelluric (MT) sounding retest data to comprehensively study the causes of the deep seismogenic environment in the southern section of the Longmenshan fault zone and explore the formation of the Lushan earthquake. Research has shown that there are obvious differences in velocity structure and magnetic distribution between the southern and northern sections of the Longmenshan fault zone. The epicenter of the Lushan earthquake is located near the boundary of the high and low‐velocity anomalies and favorable for a high‐velocity section. Moreover, at the epicenter of the Lushan earthquake located on the magnetic dome boundary of Ya'an, the development of high velocity and magnetic solid medium favors the accumulation and release of strain energy. Low‐velocity anomalies are distributed underneath the are of seismogenic origin, The inversion results of the MT retest data after the April 20th Lushan earthquake also indicate that there a high‐conductor anomaly occurs under the area of seismogenic origin of the Lushan earthquake, Therefore, we speculated that the presence of a high‐conductivity anomaly and low‐velocity anomaly underneath the seismogenic body of the Lushan earthquake could be related to the existence of fluids. The role of fluids caused the weakening of the seismogenic layer inside the mid‐upper crust and resulted in a seismogenic fault that was prone to rupture and played a triggering role in the Lushan earthquake.
Acta Geologica Sinica (English Edition) – Wiley
Published: Apr 1, 2015
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.