利用Sato模型研究民乐—山丹地震Q_c值特征
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摘要
利用Sato单次散射模型,使用甘肃遥测台网山丹台的近场数字地震记录,在60 s流失时间下研究了2003年甘肃民乐—山丹地震序列尾波Qc值的变化特征,得到Qc值随频率的变化关系。对于不同中心频率点Qc值变化形态不一致:在序列的发展阶段变化起伏较大,在序列初期和末期变化起伏较弱。
Using the Sato single scattering model,based on the near-field digital seismic records from Shandan seismic station of telemetry network of Gansu province,the change characteristics of coda Qc values of Minle-Shandan earthquake sequence,Gansu peovince,in 2003,are studied with loss time of 60 s.The relationship between the Qc values and frequency is obtained.For different center frequency points,the change from of Qc values are different.In develop stage of the frequency,Qc values changed with great fluctuations,and in early and late stages,the changes were weak.
Using the Sato single scattering model,based on the near-field digital seismic records from Shandan seismic station of telemetry network of Gansu province,the change characteristics of coda Qc values of Minle-Shandan earthquake sequence,Gansu peovince,in 2003,are studied with loss time of 60 s.The relationship between the Qc values and frequency is obtained.For different center frequency points,the change from of Qc values are different.In develop stage of the frequency,Qc values changed with great fluctuations,and in early and late stages,the changes were weak.
引文
[1]Aki K.Analysis of the seismic coda of local earthquakes asscattered waves[J].J.Geophys.Res.,1969,74,651-681.
[2]Aki K,Chouet B.Origin of coda waves:source,attenuationand scattering effects[J].J.Geophys.Res.,1975,80:3322-3342.
[3]Herrmann R B.Qesti mates usingthe coda of local earthquakes[J].Bull.Seis.Soc.Amer.,1980,70:447-468.
[4]Chouet B.Temporal variation in the attenuation of earthquakecoda near Stone Canyon,California[J].Geophys.Res.Lett.,1979,6:143-146.
[5]Jin A,Aki K.Temporal changes in codaQbefore the Tangs-han earthquake of 1976 and the Haicheng earthquake of 1975[J].J.Geophys.Res.,1986,91:665-673.
[6]秦嘉政.云南地区短周期波区域Q值与地震烈度衰减[C]∥云贵地区地震危险性研究文集[G].昆明:云南科技出版社,1989:253-260.
[7]陈学庭.澜沧和耿马大地震Q值随时间的变化[C]∥中国地球物理学会年刊[A].北京:地震出版社,1992:53.
[8]秦嘉政,刘祖荫,龙晓帆.滇西实验场两次中强地震前后尾波衰减的区域特征分析[J].中国地震,1995,11(3):212-221.
[9]李白基,秦嘉政,谢庆茵,等.云南武定1995年地震余震尾波Qc值[J].地震地磁观测与研究,2000,21(2):1-6.
[10]秦嘉政,李白基,钱晓东,等.云南武定地震余震近场尾波衰减的区域特征[J].地震学报,2001,23(1):87-97.
[11]啜永清,张淑亮,苏燕,等.大同地震序列的尾波Q值变化特征研究[J].地震,2004,24(2):66-72.
[12]钱晓东,李白基,秦嘉政.2001年云南施甸MS5.9地震余震序列尾波Qc值研究[J].地震地磁观测与研究,2004,25(1):9-17.
[13]王彩勤,郑斯华,刁桂苓,等.张北地震序列的尾波Q值研究[J].防震减灾工程学报,2004,24(1):37-40.
[14]王伟君,刘杰.1999年岫岩地震序列尾波Qc的变化过程[J].地震,2004,24(4):38-44.
[15]陈俊华,甘家思.九江一瑞昌5.7级地震余震尾波Qc值分析[J].大地测量与地球动力学,2006,26(3):65-68.
[16]王伟君,刘杰.云南4个地震序列Qc-1值变化特征对比研究[J].地震,2006,26(1):19-25.
[17]吕坚,朱新运,高建华,等.利用Sato模型研究九江—瑞昌地震序列的Qc值特征[J].大地测量与地球动力学,2007,27(2):33-36.
[18]张小涛,韩利萍,吕凤章,等.利用Sato模型研究邢台震区尾波Qc值特征[J].西北地震学报,2007,29(3):218-223.
[19]Sato H.Temporal changes in scattering and attenuation asso-ciated with the earthquake occurrence-areviewof recent stud-ies on coda waves[J].Pure App.Geophys.,1988,126:465-497.
[20]Beroza G C,Cole A T,Ellsworth WL.Stability of coda wave-attenuation during the Lorna Prieta,California earthquake se-quence[J].J.Geophys.Res.,1995,100(B3):3977-3987.
[21]Yoshihiro H,Nobuhiko H,Muneyoshi F,et a1.Temporalchanges in codaQandbvalue due tothe static stress thangesassociated with the 1995 Hyogoken Nanbu earthquke[J].J.Geophys.Res.,2000,105(B3):6I41-6I 51.
[22]马宏生,刘杰,张国民,等.尾波Qc值随时间变化在地震预测中应用的研究[J].地震,2005,25(4):39-48.
[23]Sato H.Energy propagation including scattering effect:Sin-gle isotropic scattering,approxi mation[J].Bull.Seis.Soc.Amer.,1977,68:923-948.
[24]Domingguez T,Rebollar C J.Attenuation of coda waves atthe Cerro Prieto Geothermal Field,Baja California,Mexico[J],Bull.Seis.Soc.Amer.,1997,87:1 368-1 374.
[25]Pulli J.Attenuation of coda wave in New England[J].Bull.Seis.Soc.Amer.,1984,74:1149-1166.
[26]李白基,秦嘉政,钱晓东,等.云南姚安地区的尾波衰减[J].地震学报,2004,24(1):47-52.
[27]朱新运,杨钢宇,张震峰,等.基于Sato模型的近震S波尾波Q值求解及分析软件研制[J].地震地磁观测与研究,2005,26(3):63-70.
[2]Aki K,Chouet B.Origin of coda waves:source,attenuationand scattering effects[J].J.Geophys.Res.,1975,80:3322-3342.
[3]Herrmann R B.Qesti mates usingthe coda of local earthquakes[J].Bull.Seis.Soc.Amer.,1980,70:447-468.
[4]Chouet B.Temporal variation in the attenuation of earthquakecoda near Stone Canyon,California[J].Geophys.Res.Lett.,1979,6:143-146.
[5]Jin A,Aki K.Temporal changes in codaQbefore the Tangs-han earthquake of 1976 and the Haicheng earthquake of 1975[J].J.Geophys.Res.,1986,91:665-673.
[6]秦嘉政.云南地区短周期波区域Q值与地震烈度衰减[C]∥云贵地区地震危险性研究文集[G].昆明:云南科技出版社,1989:253-260.
[7]陈学庭.澜沧和耿马大地震Q值随时间的变化[C]∥中国地球物理学会年刊[A].北京:地震出版社,1992:53.
[8]秦嘉政,刘祖荫,龙晓帆.滇西实验场两次中强地震前后尾波衰减的区域特征分析[J].中国地震,1995,11(3):212-221.
[9]李白基,秦嘉政,谢庆茵,等.云南武定1995年地震余震尾波Qc值[J].地震地磁观测与研究,2000,21(2):1-6.
[10]秦嘉政,李白基,钱晓东,等.云南武定地震余震近场尾波衰减的区域特征[J].地震学报,2001,23(1):87-97.
[11]啜永清,张淑亮,苏燕,等.大同地震序列的尾波Q值变化特征研究[J].地震,2004,24(2):66-72.
[12]钱晓东,李白基,秦嘉政.2001年云南施甸MS5.9地震余震序列尾波Qc值研究[J].地震地磁观测与研究,2004,25(1):9-17.
[13]王彩勤,郑斯华,刁桂苓,等.张北地震序列的尾波Q值研究[J].防震减灾工程学报,2004,24(1):37-40.
[14]王伟君,刘杰.1999年岫岩地震序列尾波Qc的变化过程[J].地震,2004,24(4):38-44.
[15]陈俊华,甘家思.九江一瑞昌5.7级地震余震尾波Qc值分析[J].大地测量与地球动力学,2006,26(3):65-68.
[16]王伟君,刘杰.云南4个地震序列Qc-1值变化特征对比研究[J].地震,2006,26(1):19-25.
[17]吕坚,朱新运,高建华,等.利用Sato模型研究九江—瑞昌地震序列的Qc值特征[J].大地测量与地球动力学,2007,27(2):33-36.
[18]张小涛,韩利萍,吕凤章,等.利用Sato模型研究邢台震区尾波Qc值特征[J].西北地震学报,2007,29(3):218-223.
[19]Sato H.Temporal changes in scattering and attenuation asso-ciated with the earthquake occurrence-areviewof recent stud-ies on coda waves[J].Pure App.Geophys.,1988,126:465-497.
[20]Beroza G C,Cole A T,Ellsworth WL.Stability of coda wave-attenuation during the Lorna Prieta,California earthquake se-quence[J].J.Geophys.Res.,1995,100(B3):3977-3987.
[21]Yoshihiro H,Nobuhiko H,Muneyoshi F,et a1.Temporalchanges in codaQandbvalue due tothe static stress thangesassociated with the 1995 Hyogoken Nanbu earthquke[J].J.Geophys.Res.,2000,105(B3):6I41-6I 51.
[22]马宏生,刘杰,张国民,等.尾波Qc值随时间变化在地震预测中应用的研究[J].地震,2005,25(4):39-48.
[23]Sato H.Energy propagation including scattering effect:Sin-gle isotropic scattering,approxi mation[J].Bull.Seis.Soc.Amer.,1977,68:923-948.
[24]Domingguez T,Rebollar C J.Attenuation of coda waves atthe Cerro Prieto Geothermal Field,Baja California,Mexico[J],Bull.Seis.Soc.Amer.,1997,87:1 368-1 374.
[25]Pulli J.Attenuation of coda wave in New England[J].Bull.Seis.Soc.Amer.,1984,74:1149-1166.
[26]李白基,秦嘉政,钱晓东,等.云南姚安地区的尾波衰减[J].地震学报,2004,24(1):47-52.
[27]朱新运,杨钢宇,张震峰,等.基于Sato模型的近震S波尾波Q值求解及分析软件研制[J].地震地磁观测与研究,2005,26(3):63-70.
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