FOCAL MECHANISM SOLUTIONS AND SEISMOGENIC STRUCTURE
OF M s 4.6 JIANGXIRUICHANG EARTHQUAKE
1) Key laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071
Abstract Based on the waveform records of 9 seismic stations belong to Hubei and Jiangxi regional seismic network, we obtained the focal mechanisms of the Ms 4.6 JiangxiRuichang earthquake on September 10 in 2011 with the CAP method. The result shows that the best double couple solutions are 204°, 79°and -22° for strike，dip and slip angles, respectively, the other nodal plane is 298°, 68°and -168°. The optimum focus depth is 14 km. The result shows that the principal stress P axis of the earthquake is mainly in NS, the lord tension T shaft is mainly in EW; the biggest aftershock is Ms2.8 which is also normal dipslip fault. And aftershocks sequences mainly propagated along NEE, very few aftershocks propagated along NW. So we infer that the Ms 4.6 earthquake and aftershocks are caused by the NE strike in Fenlinqiao fault from the earth’s surface investigation, and the seismogenic structure is the same to the Ms 5.7 Ruichang earthquake in 2005
Key words ：
Ruichang earthquake
focal mechanism
Cut and Paste(CAP) method
seismogenic structure
Fenlinqiao fault
Received: 25 November 2012
Published: 25 September 2013
Cite this article:
Zhao Lingyun,Zhang Hui,Chen Junhua et al. FOCAL MECHANISM SOLUTIONS AND SEISMOGENIC STRUCTURE
OF M s 4.6 JIANGXIRUICHANG EARTHQUAKE[J]. jgg, 2013, 33(Supp.1): 32-35.
Zhao Lingyun,Zhang Hui,Chen Junhua et al. FOCAL MECHANISM SOLUTIONS AND SEISMOGENIC STRUCTURE
OF M s 4.6 JIANGXIRUICHANG EARTHQUAKE[J]. jgg, 2013, 33(Supp.1): 32-35.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2013/V33/ISupp.1/32
[1]
ZHUANG Wenquan,LI Jun,HAO Ming,CUI Duxin. Study on the Characteristics of Current Crustal Activity in the Southern Sichuan-Yunnan Block Using Dense GNSS Data and Focal Mechanism Solution
[2]
FENG Bing，LI Yang，WANG Wentao，YANG Yingzhao，WEN Yulong，LIU Shu. Study on the Relationship between the Distribution of Tectonic Stress Field and the Shape of Benioff Zone from Japan to Northeast China
[3]
LU Zhen,GUO Zhi,HUANG Weiliang,ZHANG Pei,LI Jun,ZHANG Yuanyuan. Analysis on the Source Parameters and Seismogenic Structures of 2009 Shaanxi Gaoling ML 4.8 Earthquake
[4]
SONG Xianghui,TIAN Xiaofeng,WANG Shuaijun,LIU Baofeng,MA Cejun. Development and Application of Deep Seismic Sounding Method in China
[5]
ZHOU Lin，LI Jun， ZHANG Pei，JIN Yuan. Study on Fault Structure and Stress Field Characteristics of Maqin-Maqu Section of East Kunlun Fault
[6]
CHEN Junlei，ZHOU Qingyun， LIU Feng，ZHANG Tianji，YANG Liwei，ZHAO Kun. Comparison of Mechanism Inversion Methods Using Regional Waveform
[7]
.
[8]
.
[9]
.
[10]
LI Juan，HAN Xiaoming，ZHANG Fan. Research on the Tectonic Stress Field before and after the April 15,2015 Alxa Left Banner MS 5.8 Earthquake
[11]
TANG Lanrong, ZENG Xinfu,LUO Li,LI Bin1 Lv Jian. Characteristics of Focal Mechanisms and Apparent Stress in Xunwu and Its Adjacent Area
[12]
JIANG Ying,LIU Ziwei,ZHANG Xiaotong. Source Parameters of the 2015-09-16 MW 8.3 Illapel, Chile Earthquake Determined by Superconducting Gravimeter Observations
[13]
ZHOU Dongrui,ZHAO Nan,XIE Shiwen,ZHANG Bing. Research on the Consistency of Characteristic Parameters of Jinzhai Earthquake Swarm Sequence
[14]
.
[15]
MENG Fangjie, ZHANG Yan. Investigation of Low Frequency Characteristics of the Hubei Earthquake Network Seismograph Using Earth’s Free Oscillation
