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Zeng Xianwe, Xie Zujun, Xin Hailiang. 2014: Focal mechanism and seismogenic structure of the Yongning MS4.6 earthquake on 20 November 2012. Acta Seismologica Sinica, 36(5): 790-799. DOI: 10.3969/j.issn.0253-3782.2014.05.004
Citation: Zeng Xianwe, Xie Zujun, Xin Hailiang. 2014: Focal mechanism and seismogenic structure of the Yongning MS4.6 earthquake on 20 November 2012. Acta Seismologica Sinica, 36(5): 790-799. DOI: 10.3969/j.issn.0253-3782.2014.05.004
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Focal mechanism and seismogenic structure of the Yongning MS4.6 earthquake on 20 November 2012

  • 1.

    Earthquake Administration of Ningxia Hui Autonomous Region, Yinchuan 750001, China

  • 2.

    Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China

  • 3.

    Geophysical Exploration Center, China Earthquake Administration, Zhengzhou 450002, China

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  • Received Date: September 20, 2013
  • Revised Date: May 12, 2014
  • Published Date: August 31, 2014
    Graphical Abstract
    • Abstract
  • The Yongning MS4.6 earthquake on November 20, 2012 is relocated by using the absolute positioning method (Hypo2000), and distribution of aftershocks is also given. In order to investigate the seismogenic structure of the earthquake, focal mechanism and depth of the earthquake are inverted by using CAP method. The inversion result shows that the Yongning earthquake is of dextral strike-slip faulting with a small amount of thrust component, and the moment magnitude is MW4.3. The best double couple solution is 11°/74°/171° for the nodal plane Ⅰ,and 103°/81°/16° for the nodal plane Ⅱ. The estimated focal depth is about 8 km. The earthquake epicenter, focal mechanism solution and cross sections along the focal depth suggest that the earthquake is likely to occur on the secondary fault in the western Yinchuan buried fault zone.
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    • References (18)
  • 柴炽章, 孟广魁, 马贵仁. 2011. 银川市活动断层探测与地震危险性评价[M]. 北京: 科学出版社: 121-200.

    Chai C Z, Meng G K, Ma G R. 2011. Active Fault Surveying and Earthquake Risk Assessment in Yinchuan[M]. Beijing: Science Press: 121-200 (in Chinese).
    陈天长, 堀内茂木, 郑斯华. 2001. 利用P波初动和短周期P、 S波振幅测定川滇地区地震震源机制解和应力场[J]. 地震学报, 23(4): 436-440.

    Chen T C, Shigeki H, Zheng S H. 2001. Earthquake focal mechanisms and stress field in Sichuan-Yunnan area determined using P wave polarity and short period P and S waveform data[J]. Acta Seismologica Sinica,23(4): 436-440 (in Chinese).
    韩立波, 蒋长胜, 包丰. 2012. 2010年河南太康MS4.6地震序列震源参数的精确确定[J]. 地球物理学报, 55(9): 2973-2981.

    Han L B, Jiang C S, Bao F. 2012. Source parameter determination of 2010 Taikang MS4.6 earthquake sequences[J]. Chinese Journal of Geophysics,55(9): 2973-2981 (in Chinese).
    龙峰, 张永久, 闻学泽, 倪四道, 张致伟. 2010. 2008年8月30日攀枝花-会理6.1级地震序列ML≥4.0事件的震源机制解[J]. 地球物理学报, 53(12): 2852-2860.

    Long F, Zhang Y J, Wen X Z, Ni S D, Zhang Z W. 2010. Focal mechanism solutions of ML≥4.0 events in the MS6.1 Panzhihua-Huili earthquake sequence of Aug 30, 2008[J]. Chinese Journal of Geophysics,53(12): 2852-2860 (in Chinese).
    宋美琴, 郑勇, 葛粲, 李斌. 2012. 山西地震带中小震精确位置及其显示的山西地震构造特征[J]. 地球物理学报, 55(2): 513-525.

    Song M Q, Zheng Y, Ge C, Li B. 2012. Relocation of small to moderate earthquakes in Shanxi Province and its relation to the seismogenic structure[J]. Chinese Journal of Geophysics,55(2): 513-525 (in Chinese).
    韦生吉. 2009. 稀疏台网震源参数方法研究[D]. 合肥: 中国科学技术大学地球与空间科学学院: 26-28.

    Wei S J. 2009. Constraining Source Parameters with Sparse Network[D]. Hefei: School of Earth and Space Sciences, University of Science and Technology of China: 26-28 (in Chinese).
    谢祖军, 郑勇, 倪四道, 熊熊, 王行舟, 张炳. 2012. 2011年1月19日安庆ML4.8地震的震源机制解和深度研究[J]. 地球物理学报, 55(5): 1624-1634.

    Xie Z J, Zheng Y, Ni S D, Xiong X, Wang X Z, Zhang B. 2012. Focal mechanism and focal depth of the 19 January 2011 Anqing earthquake[J]. Chinese Journal of Geophysics,55(5): 1624-1634 (in Chinese).
    杨明芝, 马禾青, 廖玉华. 2007. 宁夏地震活动与研究[M]. 北京: 地震出版社: 121-200.

    Yang M Z, Ma H Q, Liao Y H. 2007. Earthquake Research and Activity of Ningxia[M]. Beijing: Seismological Press: 121-200 (in Chinese).
    郑勇, 马宏生, 吕坚, 倪四道, 李迎春, 韦生吉. 2009. 汶川地震强余震(MS≥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, 39(4): 413-426.

    Zheng Y, Ma H S, Lü J, Ni S D, Li Y C, Wei S J. 2009. Source mechanism of strong aftershocks (MS≥5.6) of the 2008/05/12 Wenchuan earthquake and the implication for seismotectonics[J]. Science in China: Series D,52(6): 739-753.
    Geiger L. 1912. Probability method for the determination of earthquake epicenters from arrival time only[J]. Bull St Louis Univ, 8(1): 60-71.
    Klein F W. 2007. User's Guide to HYPOINVERSE-2000: A Fortran Program to Solve for Earthquake Locations and Magnitudes[R]. U S Geological Survey Open-File Report: 36-40.
    Mckenzie D P. 1969. The relationship between fault plane solution for earthquakes and directions of the principal stresses[J]. Bull Seismol Soc Am,59(2): 591-601.
    Nakamura A, Horiuchi S, Hasegawa A. 1999. Joint focal mechanism determination with source-region station corrections using short-period body-wave amplitude data[J]. Bull Seismol Soc Am,89(2): 373-383.
    Oppenheimer D H, Reasenberg P A, Simpson R W. 1988. Fault plane solutions for the 1984 Morgan Hill, California, earthquake sequence: Evidence for the state of stress on the Calaveras fault[J]. J Geophys Res,93(B8): 9006-9007.
    Skyes L R. 1967. Mechanism of earthquakes and nature of faulting on the mid-oceanic ridges[J]. J Geophys Res,72(8): 2131-2153.
    Yamakawa N. 1971. Stress fields in focal regions[J]. J Phys Earth,19(4): 347-353.
    Zhao L S, Helmberger D V. 1994. Source estimation from broadband regional seismograms[J]. Bull Seismol Soc Am,84(1): 91-104.
    Zhu L P, Helmberger D V. 1996. Advancement in source estimation techniques using broadband regional seismograms[J]. Bull Seismol Soc Am,86(5): 1634-1641.
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