Hu J T,Xie J,Wei Z G,Jin C. 2023. Shallow velocity structure and seismogenic environment in the Zigui section of the Three Gorges Reservoir region of China. Acta Seismologica Sinica45(2):223−233. DOI: 10.11939/jass.20210194
Citation: Hu J T,Xie J,Wei Z G,Jin C. 2023. Shallow velocity structure and seismogenic environment in the Zigui section of the Three Gorges Reservoir region of China. Acta Seismologica Sinica45(2):223−233. DOI: 10.11939/jass.20210194

Shallow velocity structure and seismogenic environment in the Zigui section of the Three Gorges Reservoir region of China

More Information
  • Received Date: December 26, 2021
  • Revised Date: April 01, 2022
  • Available Online: May 10, 2022
  • Published Date: March 14, 2023
  • After the impoundment of the Three Gorges Reservoir in 2003, shallow earthquakes occurred frequently, which had a great impact on local productions and lives. The study of shallow velocity structure is of great significance for shallow seismic disaster assessment and disaster prevention and reduction in Zigui area. In this paper, based on the vertical component continuous waveform records of 24 mobile seismic stations in Zigui area of Hubei Province from June to July of 2020, the empirical Green’s functions between the stations are obtained by cross-correlation of the ambient seismic noise, the Rayleigh wave group velocity dispersion curves on the period 0.6−5 s are extracted, and the inversion for the three-dimensional S-wave velocity model is obtained within 6 km near the surface of the region. The results show that the S-wave velocity of Zigui basin and its south adjacent area is significantly lower than that of the eastern fault area, which is consistent with the structural evolution and sedimentary characteristics of different structural blocks in the studied area; an earthquake with MS4.2 occurred on the vertical high-velocity and low-velocity junction area of the study area in 2014. The S-wave velocity decreases obviously near the Yangtze River region in the fault zone, indicating that the Yangtze River water penetrates into the fault area. Therefore, the frequent occurrence of earthquakes in Zigui area is related to the water load and water infiltration of the Three Gorges reservoir.
  • 车用太,陈俊华,张莉芬,鱼金子,刘成龙,张卫华. 2009. 长江三峡工程库首区胡家坪MS4.1水库诱发地震研究[J]. 地震,29(4):1–13.
    Che Y T,Chen J H,Zhang L F,Yu J Z,Liu C L,Zhang W H. 2009. Study of the reservoir-induced Hujiaping MS4.1 earthquake in the Three Gorges Dam area[J]. Earthquake,29(4):1–13 (in Chinese).
    陈俊华,王秋良,廖武林,李井冈,张丽芬. 2016. 仙女山断裂北端微震群事件震源机制解研究[J]. 大地测量与地球动力学,36(增刊1):109–112.
    Chen J H,Wang Q L,Liao W L,Li J G,Zhang L F. 2016. Focal mechanism solutions research of microquake swarm in the northern end of the Xiannüshan fault zone[J]. Journal of Geodesy and Geodynamics,36(S1):109–112 (in Chinese).
    李安然, 曾心传, 严尊国. 1996. 峡东工程地震[M]. 北京: 地震出版社: 128–135.
    Li A R, Zeng X C, Yan Z G. 1996. Engineering Earthquakes in the Eastern Yangtze Gorges Area[M]. Beijing: Seismological Press: 128–135 (in Chinese).
    李强,赵旭,蔡晋安,刘瑞丰,龙桂华,安艳茹. 2009. 三峡水库坝址及邻区中上地壳P波速度结构[J]. 中国科学:D辑,39(4):427–436.
    Li Q,Zhao X,Cai J A,Liu R F,Long G H,An Y R. 2009. P wave velocity structure of upper and middle crust beneath the Three Gorges reservoir dam and adjacent region[J]. Science in China:Series D,52(4):567–578. doi: 10.1007/s11430-009-0047-6
    李强,赵旭,蔡晋安,刘瑞丰. 2011. 三峡水库坝址及邻区中上地壳S波速度结构[J]. 地震学报,33(1):39–50. doi: 10.3969/j.issn.0253-3782.2011.01.004
    Li Q,Zhao X,Cai J A,Liu R F. 2011. S-wave velocity structure of upper and middle crust beneath the Three Gorges reservoir dam and adjacent region[J]. Acta Seismologica Sinica,33(1):39–50 (in Chinese).
    李小勇,朱培民,周强,彭松柏,刘江平,刘娇. 2014. 三峡库区上地壳横波速度结构[J]. 地球科学:中国地质大学学报,39(12):1842–1850.
    Li X Y,Zhu P M,Zhou Q,Peng S B,Liu J P,Liu J. 2014. S-wave velocity structure of upper crust in Three Gorges reservoir region of the Yangtze River[J]. Earth Science:Journal of China University of Geosciences,39(12):1842–1850 (in Chinese). doi: 10.3799/dqkx.2014.167
    廖武林,姚运生,丁志峰,张丽芬. 2007. 三峡地区P波速度层析成像研究[J]. 大地测量与地球动力学,27(3):80–84.
    Liao W L,Yao Y S,Ding Z F,Zhang L F. 2007. Tomographic imagery of P wave velocity structure in Three Gorges region[J]. Journal of Geodesy and Geodynamics,27(3):80–84 (in Chinese).
    马文涛,徐长朋,李海鸥,苑京立,徐锡伟,张新东,张兰凤. 2010. 长江三峡水库诱发地震加密观测及地震成因初步分析[J]. 地震地质,32(4):552–563. doi: 10.3969/j.issn.0253-4967.2010.04.003
    Ma W T,Xu C P,Li H O,Yuan J L,Xu X W,Zhang X D,Zhang L F. 2010. Intensive observation of reservoir-induced earthquake and preliminary analysis on the causes of earthquakes in Three Gorges reservoir[J]. Seismology and Geology,32(4):552–563 (in Chinese).
    孟庆筱. 2012. 设定地震作用下三峡库区黄土坡滑坡稳定性分析[D]. 武汉: 中国地震局地震研究所: 17–18.
    Meng Q X. 2012. Stability Analysis of Huangtupo Landslide in Three Gorges Reservoir Area Under the Action of Scenario Earthquake[D]. Wuhan: Institute of Seismology, China Earthquake Administration: 17–18 (in Chinese).
    宋庆伟,颜丹平,焦守涛,吴钪,董周宾. 2014. 大巴山与雪峰山逆冲构造带J3-K1复合过程的响应:鄂西秭归褶皱带构造样式与形成机制[J]. 地质学报,88(8):1382–1400.
    Song Q W,Yan D P,Jiao S T,Wu K,Dong Z B. 2014. The response of compounding process of Dabashan and Xuefengshan thrust belt in J3-K1:The structural styles and formation mechanism of the Zigui fold belt,western Hubei[J]. Acta Geologica Sinica,88(8):1382–1400 (in Chinese).
    王琼,高原. 2014. 青藏东南缘背景噪声的瑞利波相速度层析成像及强震活动[J]. 中国科学:地球科学,44(11):2440–2450.
    Wang Q,Gao Y. 2014. Rayleigh wave phase velocity tomography and strong earthquake activity on the southeastern front of the Tibetan Plateau[J]. Science China Earth Sciences,57(10):2532–2542. doi: 10.1007/s11430-014-4908-2
    王秋良,张丽芬,廖武林,李井冈,申学林. 2013. 三峡库首区断裂构造与地震活动特征[J]. 大地测量与地球动力学,33(5):29–33.
    Wang Q L,Zhang L F,Liao W L,Li J G,Shen X L. 2013. Fault tectonics and seismic activity characteristics of Three Gorges reservoir[J]. Journal of Geodesy and Geodynamics,33(5):29–33 (in Chinese).
    王秋良,张丽芬,廖武林,李井冈. 2016. 2014年3月湖北省秭归县M4.2、M4.5地震成因分析[J]. 地震地质,38(1):121–130. doi: 10.3969/j.issn.0253-4967.2016.01.009
    Wang Q L,Zhang L F,Liao W L,Li J G. 2016. Research on genesis of M4.2 and M4.5 earthquake sequences in March 2014 in Zigui County,Hubei Province[J]. Seismology and Geology,38(1):121–130 (in Chinese).
    王泽,吴云龙,张毅,姚运生. 2020. 巴东—秭归地区地壳密度反演及其构造特征[J]. 武汉大学学报(信息科学版),45(11):1763–1770.
    Wang Z,Wu Y L,Zhang Y,Yao Y S. 2020. Crustal density inversion and its tectonic structure in Badong-Zigui area[J]. Geomatics and Information Science of Wuhan University,45(11):1763–1770 (in Chinese).
    吴海波,申学林,杜承宸,陈俊华,王杰. 2015. 2014秭归4.5、4.7级地震前小震活动特征研究[J]. 大地测量与地球动力学,35(5):751–757.
    Wu H B,Shen X L,Du C C,Chen J H,Wang J. 2015. Study of small earthquakes activity characteristics before the Zigui 4.5,4.7 earthquake in 2004[J]. Journal of Geodesy and Geodynamics,35(5):751–757 (in Chinese).
    吴海波,申学林,王杰,赵凌云,陈俊华. 2018. 三峡库区上地壳三维速度结构的双差层析成像研究[J]. 地球物理学报,61(7):2802–2814. doi: 10.6038/cjg2018L0345
    Wu H B,Shen X L,Wang J,Zhao L Y,Chen J H. 2018. Three-dimensional velocity structure of upper crust in the Three Gorges reservoir area derived from double-difference tomography[J]. Chinese Journal of Geophysics,61(7):2802–2814 (in Chinese).
    夏金梧. 2020. 三峡工程水库诱发地震研究概况[J]. 水利水电快报,41(1):28–35.
    Xia J W. 2020. Overview of reservoir induced earthquake research on Three Gorges Project[J]. Express Water Resources &Hydropower Information,41(1):28–35 (in Chinese).
    谢军. 2016. 背景噪声的验证及应用[D]. 合肥: 中国科学技术大学: 34–50.
    Xie J. 2016. Verification and Application of Surface Wave From Ambient Noise[D]. Hefei: University of Science and Technology of China: 34–50 (in Chinese).
    杨歧焱,吴庆举,盛艳蕊,高家乙,宋键,邸龙. 2018. 张渤地震带及邻区近震体波成像及孕震环境分析[J]. 地球物理学报,61(8):3251–3262. doi: 10.6038/cjg2018L0628
    Yang Q Y,Wu Q J,Sheng Y R,Gao J Y,Song J,Di L. 2018. Regional seismic body wave tomography and deep seismogenic environment beneath Zhangbo seismic belt and its adjacent area[J]. Chinese Journal of Geophysics,61(8):3251–3262 (in Chinese).
    于品清. 1993. 从水文地质条件探讨未来三峡水库发生构造型水库地震的可能性[J]. 华南地震,13(1):76–83.
    Yu P Q. 1993. Discussion on the possible tectonic earthquake in Changjiang Three-Gorge Reservoir area in relation to hydrogeologic conditions[J]. South China Journal of Seismology,13(1):76–83 (in Chinese).
    张毅,陈超,梁青,王林松,杜劲松,刘圣博. 2012. 三峡地区中上地壳密度结构[J]. 地球科学:中国地质大学学报,37(增刊1):213–222.
    Zhang Y,Chen C,Liang Q,Wang L S,Du J S,Liu S B. 2012. Density structure of upper and middle crust in Three Gorges reservoir area[J]. Earth Science:Journal of China University of Geosciences,37(S1):213–222 (in Chinese).
    赵凌云,邓津,陈俊华,申学林,戴苗,魏贵春. 2010. 基于CAP方法的震源机制研究[J]. 长江科学院院报,27(5):81–84. doi: 10.3969/j.issn.1001-5485.2010.05.018
    Zhao L Y,Deng J,Chen J H,Shen X L,Dai M,Wei G C. 2010. Study on source mechanism of MS4.1 and MS3.2 earthquakes in Hubei-Zigui with CAP method[J]. Journal of Yangtze River Scientific Research Institute,27(5):81–84 (in Chinese).
    郑秀芬,欧阳飚,张东宁,姚志祥,梁建宏,郑洁. 2009. “国家数字测震台网数据备份中心”技术系统建设及其对汶川大地震研究的数据支撑[J]. 地球物理学报,52(5):1412–1417. doi: 10.3969/j.issn.0001-5733.2009.05.031
    Zheng X F,Ouyang B,Zhang D N,Yao Z X,Liang J H,Zheng J. 2009. Technical system construction of Data Backup Centre for China Seismograph Network and the data support to researches on the Wenchuan earthquake[J]. Chinese Journal of Geophysics,52(5):1412–1417 (in Chinese).
    Bensen G D,Ritzwoller M H,Barmin M P,Levshin A L,Lin F,Moschetti M P,Shapiro N M,Yang Y. 2007. Processing seismic ambient noise data to obtain reliable broad-band surface wave dispersion measurements[J]. Geophys J Int,169(3):1239–1260. doi: 10.1111/j.1365-246X.2007.03374.x
    Hermann R B, Ammon C J. 2002. Computer Programs in Seismology, Version 3.30: Surface Waves, Receiver Functions, and Crustal Structure[M]. St Louis, Missouri: Department of Earth and Atmospheric Sciences, St Louis University: 66–70.
    Herrmann R B. 2013. Computer programs in seismology:An evolving tool for instruction and research[J]. Seismol Res Lett,84(6):1081–1088. doi: 10.1785/0220110096
    Huang R,Zhu L P,Encarnacion J,Xu Y X,Tang C C,Luo S,Jiang X H. 2018. Seismic and geologic evidence of water-induced earthquakes in the Three Gorges reservoir region of China[J]. Geophys Res Lett,45(12):5929–5936.
    Rawlinson N,Sambridge M. 2003. Seismic traveltime tomography of the crust and lithosphere[J]. Adv Geophys,46:81–198.
    Yao H J,Gouédard P,Collins J A,McGuire J J,van der Hilst R D. 2011. Structure of young East Pacific Rise lithosphere from ambient noise correlation analysis of fundamental- and higher-mode Scholte-Rayleigh waves[J]. Compt Rend Geosci,343(8/9):571–583.
  • Related Articles

  • Cited by

    Periodical cited type(1)

    1. 何现启,彭凌星,朱自强,鲁光银. 垂直发育裂隙介质中PP波扰动法近似反射系数研究. 科学技术与工程. 2021(28): 11971-11980 .

    Other cited types(3)

Catalog

    Article views (642) PDF downloads (191) Cited by(4)

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return