zhenbo

ISSN 2096-7780 CN 10-1665/P

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

3•21响水爆炸的地震学分析及谱比法研究

李晔 郭巍 高也 徐小远 王熠熙 柳艳丽

李晔, 郭巍, 高也, 徐小远, 王熠熙, 柳艳丽. 3•21响水爆炸的地震学分析及谱比法研究[J]. 地震科学进展, 2021, (5): 215-222. doi: 10.3969/j.issn.2096-7780.2021.05.003
引用本文: 李晔, 郭巍, 高也, 徐小远, 王熠熙, 柳艳丽. 3•21响水爆炸的地震学分析及谱比法研究[J]. 地震科学进展, 2021, (5): 215-222. doi: 10.3969/j.issn.2096-7780.2021.05.003
Ye Li, Wei Guo, Ye Gao, Xiaoyuan Xu, Yixi Wang, Yanli Liu. Seismic analysis and amplitude-style spectrum ratio study of the 21 March blast at Xiangshui[J]. Progress in Earthquake Sciences, 2021, (5): 215-222. doi: 10.3969/j.issn.2096-7780.2021.05.003
Citation: Ye Li, Wei Guo, Ye Gao, Xiaoyuan Xu, Yixi Wang, Yanli Liu. Seismic analysis and amplitude-style spectrum ratio study of the 21 March blast at Xiangshui[J]. Progress in Earthquake Sciences, 2021, (5): 215-222. doi: 10.3969/j.issn.2096-7780.2021.05.003

3•21响水爆炸的地震学分析及谱比法研究

doi: 10.3969/j.issn.2096-7780.2021.05.003
基金项目: 2020年度地震科技星火计划青年项目《基于水文地质和水化学特征的天津地震观测井研究》(项目编号:XH20003Y)资助
详细信息
    通讯作者:

    李晔(1986-),女,工程师,主要从事非天然地震相关研究。E-mail:yel1225@126.com

  • 中图分类号: P315

Seismic analysis and amplitude-style spectrum ratio study of the 21 March blast at Xiangshui

  • 摘要: 使用P/S谱比法重点对响水爆炸中信噪比较高的几个台站记录进行了处理分析。选取2013年1月19日发生在距其7 km左右的一次天然地震事件作为对比。得出频率在2—15 Hz范围内,90%以上的台站,爆炸P/S谱比大于1,天然地震这一值小于1,而在4—15 Hz范围内,这一结果达到了100%。为了进一步验证此方法判断爆炸与天然地震的可行性,本文又对2015年天津港爆炸事件进行计算,得到了相同的结果。此研究为使用P/S谱比法验证低震级爆炸提供案例。本文在研究的同时,对响水爆炸事件进行了波形特征及频谱特征分析。得出此事件地震记录的震相较单一,与普通的爆破记录较相似,并没有出现像2015年天津港爆炸中那样低速的空气声波与地面耦合的Rayleigh波。得到此事件有两个主频率,分别为0.2—1 Hz和4—10 Hz。

     

  • 图  1  响水爆炸Z分向到时随震中距变化图

    Figure  1.  Variation diagram of Z direction of Xiangshui blast with epicentral distance

    图  2  图1滤波后到时随震中距变化图

    Figure  2.  Time variation with epicentral distance after filtering

    图  3  响水爆炸地震记录Z分量频谱

    Figure  3.  Spectrum of Z component of the seismic record at Xiangshui blast

    图  4  响水爆炸事件、江苏灌云ML3.9天然地震及周边台站分布图(红色三角形表示爆炸所在位置,红色五星表示天然地震所在位置)

    Figure  4.  Distribution map of Xiangshui blast event,ML3.9 earthquake in Guanyun,Jiangsu and the nearby stations(the red triangle represents the location of the blast and the red star represents the location of the earthquake)

    图  5  (a,c)为XW、GUY两个台站接收到的爆炸事件的Pg、Sg及噪声的振幅谱;(b,d)为XW、GUY两个台站接收到的天然地震中的Pg、Lg及噪声的振幅谱

    Figure  5.  (a,c)are amplitude spectrum of Pg,Sg and noise received by XW and GUY stations;(c,d)are amplitude spectrum of Pg,Lg and noise received by XW and GUY stations

    图  6  响水爆炸事件中几个台站在不同频率的Pg/Sg型振幅谱比值(其中纵坐标为Pg/Sg振幅谱比值的对数)

    Figure  6.  Pg/Sg amplitude spectrum ratios at different frequencies for several stations in Xiangshui blast (the ordinate is the logarithm of the ratio of Pg/Sg amplitude spectrum)

    图  7  两次事件中Pg/Sg型振幅谱比对比图(其中纵坐标为Pg/Sg振幅谱比值的对数,圆形表示响水爆炸事件中各台站在不同频段上的Pg/Sg谱比情况;十字形表示灌云天然地震事件中各台站在不同频段上的Pg/Sg谱比情况)

    Figure  7.  Pg/Sg type amplitude spectrum ratio comparison graph for the two events(the ordinate is the logarithm of the ratio of Pg/Sg amplitude spectrum;circle represents the Pg/Sg spectrum ratio of each station at different frequency bands in the Xiangshui blast event;cross shape represents the Pg/Sg spectrum ratio of each station at different frequency bands in earthquake event of Guanyun)

    图  8  HUA台站接收爆炸事件Pg、Sg及噪声的振幅谱

    Figure  8.  Amplitude spectrum of Pg,Sg and noise of explosion even received by HUA station

    图  9  两次事件中Pg/Sg型振幅谱比均值对比图(其中纵坐标为Pg/Sg振幅谱比值的对数,圆形表示响水爆炸事件中各台站在不同频段上的Pg/Sg谱比情况;十字形表示灌云天然地震事件中各台站在不同频段上的Pg/Sg谱比情况)

    Figure  9.  The average of Pg/Sg type amplitude spectrum ratio comparison graph for the two events(the ordinate is the logarithm of the ratio of Pg/Sg amplitude spectrum;circle represents the Pg/Sg spectrum ratio of each station at different frequency bands in the Xiangshui blast event;cross shape represents the Pg/Sg spectrum ratio of each station at different frequency bands in earthquake event of Guanyun)

    图  10  两次事件中Pg/Sg型振幅谱比均值对比(其中纵坐标为Pg/Sg振幅谱比值的对数,圆形表示爆炸事件中各台站在不同频段上的Pg/Sg谱比情况;十字形表示天然地震事件中各台站在不同频段上的Pg/Sg谱比情况)

    Figure  10.  The average of Pg/Sg type amplitude spectrum ratio comparison graph for the two events(the ordinate is the logarithm of the ratio of Pg/Sg amplitude spectrum;circles represents the Pg/Sg spectrum ratio of each station at different frequency bands in the Tianjin port blast;crosses shape represents the Pg/Sg spectrum ratio of each station at different frequency bands in the earthquake of Tangshan)

    表  1  响水爆炸周围天然事件详细信息

    Table  1.   Detailed information about earthquake surrounding the Xiangshui explosion

    发生时刻震中地名经度/°E纬度/°N震级(ML
    年-月-日  时:分:秒
    2013-05-25 10:56:32江苏滨海120.234.13.2
    2016-08-18 13:47:52江苏盐城120.833.22.8
    下载: 导出CSV

    表  2  天津港爆炸与周围一天然事件详细信息

    Table  2.   Details of the Tianjin Port blast and an earthquake nearby

    发生时刻事件类型震中地名经度/°E纬度/°N震级(ML
    年-月-日  时:分:秒
    2015-08-12 23:34:37爆炸天津滨海117.739.03.2
    2016-02-12 13:47:52天然地震河北唐山117.939.43.0
    下载: 导出CSV
  • [1] 李晔,许可,柳艳丽,等. 天津港爆炸的地震学研究[J]. 中国科技成果,2017(15):35-41 doi: 10.3772/j.issn.1009-5659.2017.15.019

    Li Ye,Xu Ke,Liu Yanli,et al. Seismological study on explosion in Tianjin Port[J]. China Science and Technology Achievement,2017(15):35-41 doi: 10.3772/j.issn.1009-5659.2017.15.019
    [2] Xu Z,Wei F,Tan Y P,et al. Seismological investigations of two massive explosions in Tianjin,China[J]. Seismological Research Letters,2016,87(4):826-836 doi: 10.1785/0220150229
    [3] 叶庆东,毛远凤,王生文,等. 基于倒谱的2015年天津港“8•12”爆炸分析[J]. 震灾防御技术,2018,13(3):627-635

    Ye Qingdong,Mao Yuanfeng,Wang Shengwen,et al. Cepstrum-based analysis on the“8•12”explosion of Tianjin Harbor,2015[J]. Technology for Earthquake Disaster Prevention,2018,13(3):627-635
    [4] Murphy J R. Near-field Rayleigh waves from surface explosions[J]. Bull. Seismol. Soc. Amer.,1981,71(1):223-248
    [5] Hinzen K G. London fuel tank explosion recorded by short period seismic stations at 500 km distance[J]. Seismological Research Letters,2007,78(3):383-388 doi: 10.1785/gssrl.78.3.383
    [6] Hinzen K G. Seismic analysis of the accidental WWⅡ bomb explosion in euskirchen,germany,on 3 January 2014[J]. Seismological Research Letters,2014,85(4):825-835 doi: 10.1785/0220140049
    [7] 沈萍,郑治真. 瞬态谱在地震与核爆识别中的应用[J]. 地球物理学报,1999,42(2):233-240 doi: 10.3321/j.issn:0001-5733.1999.02.011

    Shen Ping,Zheng Zhizhen. Application of transient spectrum to discrimination of nuclear explosion and earthquakes[J]. Chinese Journal of Geophysics,1999,42(2):233-240 doi: 10.3321/j.issn:0001-5733.1999.02.011
    [8] 杨选辉,沈萍,刘希强,等. 地震与核爆识别的小波包分量比方法[J]. 地球物理学报,2005,48(1):148-156 doi: 10.3321/j.issn:0001-5733.2005.01.020

    Yang Xuanhui,Shen Ping,Liu Xiqiang,et al. Application of method of spectral component ratio of wavelet-packets to discrimination between earthquake and nuclear explosions[J]. Chinese Journal of Geophysics,2005,48(1):148-156 doi: 10.3321/j.issn:0001-5733.2005.01.020
    [9] 王婷婷,边银菊,张博,等. 地震和爆破的综合识别方法研究[J]. 地球物理学进展,2013,28(5):2433-2443 doi: 10.6038/pg20130522

    Wang Tingting,Bian Yinju,Zhang Bo,et al. The comprehensive identification methods between earthquake and explosions[J]. Progress in Geophysics,2013,28(5):2433-2443 doi: 10.6038/pg20130522
    [10] 陈润航,黄汉明,柴慧敏,等. 地震和爆破事件源波形信号的卷积神经网络分类研究[J]. 地球物理学进展,2018,33(4):1331-1338 doi: 10.6038/pg2018BB0326

    Chen Runhang,Huang Hanming,Chai Huimin,et al. Study on the discrimination of seismic waveform signals between earthquake and explosion events by convolutional neural network[J]. Progress in geophysics,2018,33(4):1331-1338 doi: 10.6038/pg2018BB0326
    [11] 边银菊. 遗传BP网络在地震和爆破识别中的应用[J]. 地震学报,2002,24(5):516-524 doi: 10.3321/j.issn:0253-3782.2002.05.009

    Bian Yinju. Application of genetic BP network to discriminating earthquake and explosion[J]. Acta Seismological Sinica,2002,24(5):516-524 doi: 10.3321/j.issn:0253-3782.2002.05.009
    [12] 韩绍卿,李夕海,安跃文,等. 核爆、化爆、地震识别研究综述[J]. 地球物理学进展,2010,25(4):1206-1218 doi: 10.3969/j.issn.1004-2903.2010.04.009

    Han Shaoqing,Li Xihai,An Yuewen,et al. A review on the identification of nuclear explosions,chemical explosions and natural earthquakes[J]. Progress in Geophysics,2010,25(4):1206-1218 doi: 10.3969/j.issn.1004-2903.2010.04.009
    [13] William R W,Kevin M M,Howard J P. Phase and spectral ratio discrimination between NTS earthquakes and explosions. Part I:Empirical observations[J]. Bull. Seismol. Soc. Amer.,1995,85(4):1050-1067
    [14] 田有,柳云龙,刘财,等. 朝鲜2009年和2013年两次核爆的地震学特征对比研究[J]. 地球物理学报,2015,58(3):809-820 doi: 10.6038/cjg20150311

    Tian You,Liu Yunlong,Liu Cai,et al. Comparative study on seismological characteristics of 2009 and 2013 nuclear explosions in North Korea[J]. Chinese Journal of Geophysics,2015,58(3):809-820 doi: 10.6038/cjg20150311
    [15] 柳云龙. 朝鲜核试验地震学特征与长白山火山区上地幔三维衰减结构研究[D]. 吉林: 吉林大学, 2014

    Liu Yunlong. Seismology characteristics of the North Korean’s nuclear explosions and three-dimension attenuation structure of upper mantle under the Changbai volcano[D]. Jilin: Jilin University, 2014
    [16] 潘常周,靳平,王洪春. P/S震相幅值比判据对地震级地震事件的适用性检验[J]. 地震学报,2007,29(5):521-528 doi: 10.3321/j.issn:0253-3782.2007.05.009

    Pan Changzhou,Jin Ping,Wang Hongchun. Applicability of P/S amplitude ratios for the discrimination of low magnitude seismic events[J]. Acta Seismologica Sinca,2007,29(5):521-528 doi: 10.3321/j.issn:0253-3782.2007.05.009
    [17] 许可,柳艳丽,高也,等. 天津测震台网地震监测能力分析[J]. 地震地磁观测与研究,2017,38(4):194-198 doi: 10.3969/j.issn.1003-3246.2017.04.032

    Xu Ke,Liu Yanli,Gao Ye,et al. Evolution of monitoring capability of Tianjin seismic network[J]. Seismological and Geomagnetic Observation and Research,2017,38(4):194-198 doi: 10.3969/j.issn.1003-3246.2017.04.032
    [18] 许可,郭巍,高也,等. 天津简易烈度计地震预警试验区建设[J]. 震灾防御技术,2019,14(2):456-463 doi: 10.11899/zzfy20190219

    Xu Ke,Guo Wei,Gao Ye,et al. Development of simple intensity meter in Tianjin early warn experimental site[J]. Technology for Earthquake Disaster Prevention,2019,14(2):456-463 doi: 10.11899/zzfy20190219
  • 加载中
图(10) / 表(2)
计量
  • 文章访问数:  203
  • HTML全文浏览量:  144
  • PDF下载量:  26
出版历程
  • 收稿日期:  2020-12-14
  • 修回日期:  2021-02-01
  • 网络出版日期:  2021-07-05
  • 刊出日期:  2021-05-25

目录

    /

    返回文章
    返回
    本系统由北京仁和汇智信息技术有限公司设计开发 百度统计