用双差波速比方法分析2014—2015年安徽金寨震群

Abstract

Abstract: We proposed a method to estimate local V_P/V_S ratios for compact similar earthquake clusters using the precise P and S differential times. Two closely-spaced earthquakes have the same path to the station, through this method to deduct the same path to obtain the V_P/V_S ratios of the epicentral area. We calculated the V_P/V_S ratios of earthquake swarm in Anhui Jinzhai from August 2014 to August 2015. The result shows that the concentrated area is lower than the surrounding area. Combined with the fault distribution, our results may reflect that in this area crust medium is harder than the surrounding area, and stress accumulation is also higher than the surrounding area.

Key words: V_P/V_S ratios, Double-difference time, The 2014—2015 Jinzhai earthquake swarm

CLC Number:

P315.7

JIA Luo-zhao,WANG Zhi-shuo,ZHANG Ya-lin,XING Kang. Analysis of the 2014—2015 Jinzhai Earthquake Swarm by Double-difference V_P/V_S Ratio Method[J]. EARTHQUAKE, 2017, 37(1): 112-120.

References

[1] 冯德益, 谭爱娜, 王克芬. 近地震波速异常与地震预报[J]. 地球物理学报, 1974, 17(2): 84-98.
[2] 冯德益. 地震波速异常[M]. 北京: 地震出版社, 1981, 1-14.
[3] Guoqing L, Shearer P M.Estimating Local V_P/V_S Ratios within Similar Earthquake Clusters[J]. Bulletin of the Seismological Society of America, 2007, 97: 379-388.
[4] 王志铄, 李源. 汶川地震余震区波速比与强余震的关系[J]. 山西地震, 2012, 1: 5-7.
[5] 蔡静观. 波速比计算中的不确定因素和在地震预报中的应用[J]. 地震研究, 2000, 23(1): 51-56.
[6] 翁钊强. 单台多震和达法研究山西地区的波速比变化特征[J]. 中国地震, 2015, 31(1): 89-100.
[7] 李永莉, 赵小艳, 付虹. 小湾水库蓄水前后的水库地震波速比变化初探[J]. 地震研究, 2012, 35(4): 464-470.
[8] 李敏莉, 刘东旺, 刘泽民, 等. 安徽及邻区平均波速比的测定及研究[J]. 地震地磁观测与研究, 2005, 1: 22-27.
[9] 王林瑛, 李艳娥, 李芳, 等. 汶川地震前后地震波速比和视速度变化特征的研究[J]. 地震学报, 2011, 33(1): 1-14.
[10] 嘉世旭, 刘昌锉. 邢台震源区波速比异常与地震的关系[J]. 地震学报, 1996, 39(supp): 205-215.
[11] Hauksson E, Haase J. Three-dimensional V_P and V_P/V_S velocity models of the Los Angels Basin and central Trans-verse Ranges, California[J]. Jour Geophys Res, 1994, 102: 5423--5453.
[12] 王林瑛, 李艳娥, 李芳, 等. 汶川地震前后地震波速比和视速度变化特征的研究[J]. 地震学报, 2011, 33(1): 1-14.
[13] Whitcomb J H, Garmany J D, Anderson D L. 1973. Earthquake prediction:Variation of seismic velocities before the San-Fernando earthquake[J]. Science, 1973,180(4086): 632-635.
[14] Roel Snieder, Alexandre Gret, Huub Douma, et al. Coda Wave Interferometry for Estimating Nonlinear Behavior in Seismic Velocity[J]. Science, 2002, 29: 2253-2255.
[15] 刘志坤, 黄金莉. 利用背景噪声互相关研究汶川地震震源区地震波速度变化[J]. 地球物理学报, 2010, 53(4): 853-863.
[16] 李霞, 周彦文, 赵瑞, 等. 沂沭断裂带及附近地区分段平均波速比研究[J]. 地震研究, 2013, 36(2): 148-154.
[17] 陈丽娟, 陈学忠, 李艳娥, 等. 利用纵、横波的拐角频率比值和位移谱零频极限比值计算波速比[J]. 地震, 2014, 35(2): 11-25.
[18] Meier U, Shapiro N M, Brenguier F. Detecting seasonal variations in seismic velocities within LosAngeles basin from correlations of ambient seismic noise[J]. Geophys J Int, 2010, 181: 985-996.
[19] 张学民, 刁桂苓, 束沛镒, 等. 华北地区地下介质波速比值(V_P/V_S)研究[J]. 地震地质, 2004, 26(2): 305-317.
[20] 刘琼林, 王椿墉, 姚志祥, 等. 华北克拉通中西部地区地壳厚度与波速比研究[J]. 地球物理学报, 2011, 54(9): 2213-2224.
[21] 邓涛, 杨林德. 各向异性岩石纵、横波的波速比特性研究[J]. 岩石力学与工程学报, 2006, 25(10): 2023-2029.
[22] 王峰, 丘广新, 程效军. 改进的鲁棒迭代最小二乘平面拟合算法[J]. 同济大学学报(自然科学版), 2011, 39(9): 1350-1354.
[23] 吴昊, 陈树新, 等. 一种鲁棒的递推总体最小二乘无源定位算法[J]. 中南大学学报(自然科学版), 2015, 46(3): 886-893.
[24] 秦保燕, 张元生. 波速比异常空间演化与主震位置预测[J]. 西北地震学报, 2000, 22(1): 5-9.
[25] 杨文采, 瞿辰, 于常青. 华北东部地区地壳泊松比异常及其成因[J]. 地学前缘(中国地质大学(北京); 北京大学), 2011, 18(3): 13-21.
[26] 梁向军, 刘林飞, 李丽, 等. 山西地区的波速比(V_P/V_S)特征研究[J]. 华北地震科学, 2014, 32(2): 20-24.
[27] 李冬圣, 蔡玲玲, 常亮, 等. 河北赞皇震群波速比变化特征研究[J]. 2015, 33(4): 20-23.
[28] 徐鑫, 刘东旺, 刘泽民. 安徽及邻区中强震前波速比变化研究[J]. 华北地震科学, 2013, 31(1): 16-19.
[29] 陈俊华, 甘家思, 魏贵春, 等. 水库断层岩溶带地震波波速比研究[J]. 人民长江, 2011, 42(3): 23-26.
[30] 张小涛, 韩丽萍, 张新东, 等. 邢台地区波速比和泊松比分布特征研究[J]. 西北地震学报, 2012, 34(1): 85-87.
[31] 姚家骏, 王培玲, 刘文邦. 玉树7.1级地震前后波速比变化特征分析[J]. 高原地震, 2012, 24(3): 6-10.
[32] 胥颐, 杨晓涛, 刘建华. 云南地区地壳速度结构的层析成像研究[J]. 地球物理学报, 2013, 56(6): 1904-1914.
[33] 邵磊, 王健, 林国庆. 特定震源台站校正定位方法及在安徽霍山地区的应用[J]. 地球物理学报, 2010, 53(6): 1440-1450.
[34] 崔子健, 李志雄, 陈章立, 等. 小震群序列类型判定方法研究的现状及相关问题研究的趋势[J]. 国际地震动态, 2011, 6(390): 32-40.

Analysis of the 2014—2015 Jinzhai Earthquake Swarm by Double-difference V_P/V_S Ratio Method

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Analysis of the 2014—2015 Jinzhai Earthquake Swarm by Double-difference VP/VS Ratio Method

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Analysis of the 2014—2015 Jinzhai Earthquake Swarm by Double-difference V_P/V_S Ratio Method