|本期目录/Table of Contents|

[1]王同利,崔博闻,王丽红,等.2008年汶川MS8.0地震前后地电阻率时空变化[J].地震研究,2022,45(01):66-74.[doi:10.20015/j.cnki.ISSN1000-0666.2022.0008]
　WANG Tongli,CUI Bowen,WANG Lihong,et al.Temporal and Spatial Evolution of the Apparent Resistivity before and after the 2008 Wenchuan MS8.0 Earthquake[J].Journal of Seismological Research,2022,45(01):66-74.[doi:10.20015/j.cnki.ISSN1000-0666.2022.0008]
点击复制

2008年汶川MS8.0地震前后地电阻率时空变化(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
45
期数:
2022年01期
页码:
66-74
栏目:
出版日期:
2022-01-20

文章信息/Info

Title:
Temporal and Spatial Evolution of the Apparent Resistivity before and after the 2008 Wenchuan MS8.0 Earthquake
作者:
王同利1; 崔博闻1; 王丽红1; 颜晓晔2; 李菊珍1
(1.北京市地震局,北京 100080; 2.四川省地震局,四川 成都 610000)
Author(s):
WANG Tongli1; CUI Bowen1; WANG Lihong1; YAN Xiaoye2; LI Juzhen1
(1.Beijing Earthquake Agency,Beijing 100080,China)(2.Sichuan Earthquake Agency,Chengdu 610000,Sichuan,China)
关键词:
汶川MS8.0地震;  地电阻率;  时序分析;  空间分布;  归一化速率变化方法
Keywords:
the Wenchuan MS8.0 earthquake;  apparent resistivity;  time sequential analysis;  spatial distribution;  the Normalized Variation Rate method
分类号:
P315.722
DOI:
10.20015/j.cnki.ISSN1000-0666.2022.0008
摘要:
采用归一化速率变化方法对2008年汶川MS8.0地震震中周边19个定点台站观测到的地电阻率的时空变化过程进行了计算分析。时序分析结果显示:在汶川地震前,震中周边多个地电阻率台站准同步地出现了中短期前兆异常; 空间分布过程显示,地震孕震过程中地电阻率在震中区域有负异常丛集和由远及近的迁移现象,负异常丛集呈象限分布,长轴方向与震源机制解主压力方向基本吻合,且受孕震断裂、台站位置、观测装置布设方向等的影响。
Abstract:
In this paper,the Normalized Variation Rate method is used to analyze the sequential and spatial variation of the apparent resistivity observed by 19 stations around the Wenchuan MS8.0 earthquake.The sequential analysis shows that some of the earthquake stations had quasi-synchronously recorded the short- and medium-term precursory anomalies of the apparent resistivity before the Wenchuan earthquake.The spatial analysis shows that in the epicentral region,the negative anomalies of the apparent resistivity had been featured with a strip distribution and with a migration from far to near before the earthquake.The cluster of the anomalies displayed a quadrant pattern,whose long axis was consistent with the direction of principal compressive stress of the focal mechanism solution.The seismogenic fault,the station location,and the layout direction of the observational instruments also influenced the distribution direction of the long axis of the precursory anomalies.

参考文献/References:

杜学彬,李宁,叶青,等.2007.强地震附近视电阻率各向异性变化的原因[J].地球物理学报,50(6):1802-1810.
杜学彬,刘君,崔腾发,等.2015.两次近距离大震前成都台视电阻率重现性、相似性和各向异性变化[J].地球物理学报,58(2):576-588.
杜学彬,阮爱国,范世宏,等.2001.强震近震中区地电阻率变化速率的各向异性[J].地震学报,23(3):289-297.
杜学彬.2010.在地震预报中的两类视电阻率变化[J].中国科学:地球科学,40(10):1321-1330.
冯志生,李鸿宇,张秀霞,等.2013.地磁谐波振幅比异常与强地震[J].华南地震,33(3):9-15.
高曙德,汤吉,杜学彬,等.2010.汶川8.0级地震前后电磁场的变化特征[J].地球物理学报,53(3):512-525.
桂燮泰,关华平,戴经安.1989.唐山、松潘地震前视电阻率短临异常图像重现性[J].西北地震学报,11(4):71-75.
桂燮泰,关华平,戴经安,等.1987.地电视电阻率法测报强震指标讨论[J].华南地震,7(2):56-63.
何案华,赵刚,刘成龙,等.2012.青海玉树与德令哈地热观测井在汶川与玉树地震前的异常特征[J].地球物理学报,55(4):1261-1268.
解滔,刘杰,卢军,等.2018.2008年汶川MS8.0地震前定点观测电磁异常回溯性分析[J].地球物理学报,61(5):1922-1937.
金安忠.1982.唐山地震前近震中区地电阻率的震前突变现象[J]. 地震学报,3(2):169-173.
李姜,乔子云,张国苓,等.2019.华北地区地电阻率归一化速率异常分析[J].地震地磁观测与研究,40(6):62-71.
刘君,杜学彬,范莹莹,等.2013.甘肃岷县漳县MS6.6地震前的地电阻率变化[J].地震工程学报,35(4):819-826.
陆阳泉,钱家栋,刘建毅.1990.大型花岗岩标本缓慢膨胀破裂过程中电阻率和声发射前兆特征的实验研究[J].西北地震学报,12(2):35-41.
钱复业,赵玉林,余谋明,等.1982.地震前地电阻率的异常变化[J].中国科学:化学,12(9):831-839.
钱家栋,陈有发,金安忠.1985.地电阻率法在地震预报中的应用[M].北京:地震出版社,10-51.
钱家栋,马钦忠,李劭秾.2013.汶川MS8.0地震前成都台NE测线地电阻率异常的进一步研究[J].地震学报,35(1):4-17,137.
邱泽华,张宝红,池顺良,等.2010.汶川地震前姑咱台观测的异常应变变化[J].中国科学:地球科学,40(8):1031-1039.
史红军,赵卫星,张可佳,等.2014.吉林省地电阻率震兆异常分析研究[J].地震学报,36(3):452-463,532.
汪志亮,郑大林,余素荣.2002.地震地电阻率前兆异常现象[M].北京:地震出版社,58-65.
王同利,崔博闻,叶青,等.2020.九寨沟MS7.0地震地电阻率变化时空演化分析[J].地球物理学报,63(6):2345-2356.
王振荣,兰江华.2008.四川汶川大地震的构造分析[J].矿物岩石,28(2):1-10.
徐锡泉,高昌志,王亮.2014.内蒙古宝昌台地电阻率长期观测数据研究[J].地震工程学报,36(2):405-412.
闫睿,朱石军,胡乐银,等.2015.北京市延庆地震台地电阻率长程观测数据研究[J].地震工程学报,37(3):724-730,771.
易桂喜,龙锋,张致伟.2012.汶川MS8.0地震余震震源机制时空分布特征[J].地球物理学报,55(4):1213-1227.
张学民,李美,关华平.2009.汶川8.0级地震前的地电阻率异常分析[J].地震,29(1):108-115.
朱涛.2013.汶川MS8.0地震前区域性地电阻率异常初步研究[J].地震学报,35(1):18-25.
Du X B.2011.Two types of changes in apparent resistivity in earthquake prediction[J].Science China(Earth Science),54(1):145-156.
Huang Q H.2011.Retrospective investigation oF geophysical data possible associated with the MS8.0 Wenchuan earthquake in Sichuan,China[J].J Asian Earth Sci,41(4-5):421-427.
Lu J,Xie T,Li M, et al.2016.Monitoring shallow resistivity changes prior to the 12 May 2008 M8.0 Wenchuan earthquake on the Longmen Shan tectonic zone,China[J].Tectonophysics,675:244-257.
Zhang X M,Ding J H,Sheng X H, et al.2009.Electromagnetic perturbations before Wenchuan M8.0 earthquake and stereo electromagnetic observation system[J].Chinese Journal of Radio Science,24(1):1-8.

备注/Memo

备注/Memo:
收稿日期:2021-04-13
基金项目:中国地震局冬奥会保障晋冀蒙监测能力提升项目及星火项目(XH20210401)资助.

更新日期/Last Update: 2022-01-20