|本期目录/Table of Contents|

[1]贾立峰,乔子云,张国苓,等.2013年辽宁灯塔M5.1地震地磁异常变化特征*[J].地震研究,2017,40(03):437-443.
　JIA Lifeng,QIAO Ziyun,ZHANG Gouling,et al.Variation of the Geomagnetic Anomaly Characteristics before the Liaoning Dengta M5.1 Earthquake in 2013[J].Journal of Seismological Research,2017,40(03):437-443.
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2013年辽宁灯塔M5.1地震地磁异常变化特征*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
40
期数:
2017年03期
页码:
437-443
栏目:
流动地磁专栏
出版日期:
2017-07-20

文章信息/Info

Title:
Variation of the Geomagnetic Anomaly Characteristics before the Liaoning Dengta M5.1 Earthquake in 2013
作者:
贾立峰; 乔子云; 张国苓; 寇海川; 梁红杰
(河北省地震局,河北 石家庄 050021)
Author(s):
JIA Lifeng; QIAO Ziyun; ZHANG Gouling; KOU Haichuan; LIANG Hongjie
(Hebei Earthquake Agency,Shijiazhuang 050021,Hebei,Chian)
关键词:
灯塔M5.1地震;  地磁异常;  地磁谐波振幅比;  地磁总强度F21相关法;  区域地磁低点位移法
Keywords:
Dengta M5.1 earthquake;  geomagnetic anomaly;  geomagnetic harmonic wave amplitude ratio;  spatial correlation of geomagnetic F21;  regional geomagnetic low-point displacement method
分类号:
P318
DOI:
-
摘要:
采用地磁谐波振幅比方法和地磁总强度F21相关法对2013年1月23日辽宁灯塔M5.1地震震中周边的铁岭台、营口台、通化台及朝阳台2008年1月至2015年12月的地磁数据进行了计算分析。并利用震中周边16个台站的地磁Z分量数据进行了大区域地磁低点位移异常扫描,分析震前可能出现的短期地震地磁异常。通过不同方法总结了在显著地震发震前出现的中期至短期的不同地磁异常特征,结果显示:4个地磁台站地磁谐波振幅比结果部分周期在发震前2～4 a开始出现下降变
Abstract:
Using the geomagnetic data recorded between January 2008 and December 2015 that observed by four geomagnetic stations such as Tieling,Yingkou,Tonghua and Chaoyang,we study the Dengta M5.1 earthquake through the methods including geomagnetic harmonic wave amplitude ratio(HWAR)and spatial correlation of geomagnetic F21(SC-F21).And by scanning the large area of geomagnetic low-point displacement anomalies(LPD)based on geomagnetic Z component data provided by 16 stations around the epicenter,we analyze short-term earthquake geomagnetic anomalies that may occur before the earthquake.Then we summarizes the different magnetic medium to short-term anomaly characteristics that appeared before the earthquake.The study showed that the HWAR appeared some decline anomaly about 2～4 years before the Dengta earthquake and the earthquake occurred in the rising stage.Some obvious decline anomaly appeared before the earthquake in the SC-F21 result,and a clear dividing line appeared in LPD method about 13 days before the earthquake occurred.

参考文献/References:


丁鉴海,刘杰,余素荣,等.2004.地磁日变化异常与强震的关系[J].地震学报,26(增刊1):80-88.
冯志生,居海华,李鸿宇,等.2009.地磁谐波振幅比异常特征的进一步研究及定性解释[J].华南地震,29(1):17-23.
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.
冯志生,梅卫萍,张秀霞,等.2004.中强震前地磁谐波振幅比的趋势性变化特征初步研究[J].西北地震学报,26(1):50-56.
冯志生,王建宇,梅卫萍,等.2000.江苏地区地磁Z21测值空间相关异常及其标志体系[J].地震地磁观测与研究,21(1):45-50.
李琪,袁伊人,杨星,等.2016.2013年3月3日洱源MS5.5地震前地磁谐波振幅比异常研究[J].地震学报,38(1):122-129,158.
李彤霞,陈楠,吴建霆,等.2014.2013年1月23日辽宁灯塔5.1级地震浅析[J].防灾减灾学报,30(2):27-30.
刘长生,段莉莉.2015.东北地区中强地震与地磁总场强度异常变化关系研究[J].防灾减灾学报,31(4):43-48.
鲁跃,宋治平,张洪魁,等.1999.张北地震前地磁空间相关异常特征[J].地震地磁观测与研究,20(1):40-46.
孙旭丽,邹本良,刘长生.2015.利用地磁相关系数异常初步判定发震区域[J].防灾减灾学报,31(1):75-80.

备注/Memo

备注/Memo:
收稿日期:2017-01-21
基金项目:国家自然科学基金项目(41274079)、中国地震行业专项(201508013)和中国地震局震情跟踪定向工作任务(2017010409)联合资助.

更新日期/Last Update: 2017-07-20