2013年松原震群地磁ULF波动异常研究
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摘要
为了提取2013年10月至11月吉林省松原市M_S 5.0以上震群前后地磁异常变化信息,利用短时快速傅里叶变换方法,分析平均震中距为79 km的长春地磁台地磁场能量波动,发现该台Z分量在震前4个月于0.02 Hz频点能量出现异常波动,震前2个月达到峰值,随后逐渐平稳,恢复到正常水平期间发生地震。排除空间变化磁场影响和环境干扰,认为该异常变化与2013年松原M_S 5.0以上震群有关。
In order to find geomagnetic abnormality associated with Songyuan earthquakes,the variance of geomagnetic energy of Changchun station,which is 79 km away from the epicenter,was calculated based on SFFT-trans form.The result showed that there was an obvious enhancement around 50 s of Z component about 4 months before earthquake and which reached to the maximum about 2 month before.The earthquake happened when it back to normal.We think the unusual enhancement of Z component related to Songyuan earthquake swarms.
引文
丁鉴海,卢振业,黄雪香.地震电磁学[M].北京:地震出版社,1994.
    丁鉴海,于素荣,王亚丽.地磁“低点位移”现象与强震预测研究[J].电磁波科学学报,2008,23(6):1 011-1 017.
    韩鹏,黄清华,修济刚.地磁日变与地震活动关系的主成分分析——以日本岩手县北部6.1级地震为例[J].地球物理学报,2009,52(6):1556-1 563.
    李琪,杨冬梅,张素琴,等.地磁转换函数方法之典型震例及数模对比[J].地震,2005,25(3):85-90.
    李琪,林云芳,曾小苹.应用小波变换提取张北地震的震磁效应[J].地球物理学报,2006,49(3):855-863.
    李琪,李军辉,杨冬梅,等.地磁ULF前兆信息研究简述[J].地震地磁观测与研究,2008,29(6):170-176.
    李西京,杨冬梅,姚休义,等.地磁绝对子夜均值短周期异常数据识别方法[J].地震地磁观测与研究,2012,33(5):98-104.
    钱家栋,林云芳.地震电磁观测技术[M].北京:地震出版社,1995.
    张建国,焦立果,刘晓灿,等.汶川M_S 8.0地震前后ULF电磁辐射频谱特征研究[J].地球物理学报,2013,56(4):1 253-1 261.
    张建国,刘晓灿,马新欣,等.玉树7.1级地震前后电磁辐射小波变换分析[J].大地测量与地球动力学,2011,31(6):32-38.
    Chavez O,Milan-Almaraz J R et al.Detection of ULF geomagnetic signals associated with seismic events in Central Mexico using Discrete Wavelet Transform[J].Nat Hazards Earth Syst Sci,2010,10:2 557-2 564.
    Cianchini G,De Santis A,Barraclough D R et al.Magnetic transfer function entropy and the 2009 M_W=6.3 L'Aquila earthquake(Central Italy)[J].Nonlinear Processes in Geophysics,2012,19:401-409.
    Fraser—Smith A C,Bernardi A,McGill P R et al.Low-frequency magnetic field measurements near the epicenter of the Ms 7.1 Loma Prieta earthquake[J].Geophys Res Lett,1990,17:1456—146.
    Gotoh K,Hayakawa M,Smirnova N.Fractal analysis of the ULF geomagnetic data obtained atIzu Peninsula,Japan in relation to the nearby earthquake swarm of June-August 2000[J],Nat Hazards Earth Syst Sci,2003,3:229—236.
    Han P,Hattori K,Huang Q et al.Evaluation of ULF electromagnetic phenomena associated with the 2000Izu Island earthquake swarm by wavelet transform analysis[J].Nat Hazards Earth Syst Sci,2011,11:965—970.
    Hattori K.ULF geomagnetic changes associated with large earthquakes[J].Terr Atmos Ocean Sci,2004,15(3):329—360.
    Hattori K,Takahashi I,Yoshino C et al.ULF geomagnetic field measurements injapan and some recent results associated with Iwateken Naitiku Hokubu earthquake in 1998[J].Phys Chem Earth,2004a,29(4—9):481-494.
    Hattori K,Han P,Yoshino C et al.Investigation of ULF Seismo-Magnetic Phenomena inKanto,Japan During 2000—2010:Case studies and Statistical Studies[J].Surv Geophys,2013,34:293—316.
    Hayakawa M,Kawate R,Molchanov O A et al.Results of ultra-low-frequency magnetic field measurements during the Guam earthquake of 8 August 1993[J].Geophys Res Lett,1996,23(3):241—244.
    Hayakawa M,Hattori K.Ultra-low-frequency electromagnetic emissions associated with earthquakes[J],IEEJ Trans Fundamentals on Fundamentals and Materials,2004,124(12):1 101—1 108.
    Ida Y,Yang D,Li Q et al.Fractal analysis of ULF electromagnetic emission in possible association with earthquakes in China[J].Nonlinear Processes in Geophysics,2012,19:577—583.
    Jeremy N,Jeffrey J,Malcolm J S et al.On the reported magnetic precursor of the 1989 Lorna Prieta earthquake[J].Phys Earth Planet Inter,2009,173(3-4):207—215.
    Masci F.On the multi-fractal characteristics of the ULF geomagnetic field before the Guam 1993 earthquake[J].Nat Hazards Earth Syst Sci,2013,13:187-191.
    Molchanov O A,Kopytenko Yu A,Voronov P M et al.Result of ULF magnetic field measurements near the epicenter of the Spitak(M_S=6.9)and Loma Prieta(M_S=7.1)earthquakes:comparative analysis[J].Geophys Res Lett,1992,19(14):1 495-1 498.
    Nagao T,Enomoto Y,Fujinawa Y et al.Electromagnetic anomalies associated with 1995 Kobe earthquake[J].Journal of Geodynamics,2002,33(4-5):401—411.
    Newitt L R,Barton C E,Bitterly J.Guide for Magnetic Repeat Station Surveys[M].International Association of Geomagnetism and Aeronomy,1996.
    Uyeda S,Hayakawa M,Nagao T et al.Electric and magnetic phenomena observed before the volcano-seismic activities in2000 in the Izu Island Region,Japan[J].Proc Natl Acad Sci USA,2002,99(11):7 352-7 355.

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