青岛地区及附近海域尾波Q值研究及青岛震群跟踪分析
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摘要
利用山东数字地震台网和青岛数字地震台网的地震波形资料,基于单次散射模型的尾波小波包分析方法,计算了青岛地区4个台站附近的尾波Q值,拟合得到青岛地区及附近海域尾波Q值随频率的变化关系为:Q=123.5×f0.9;并对2003年6月青岛市王哥庄的4级震群序列的Q值进行计算分析,结果表明,在震群期间Q值变化不大。
Based on seismic waveform data of digital seismic networks of Shandong and Qingdao,the Q-values of coda wave of the area around 4 seismic stations of Qingdao are calculated by using analysis method of wavelet package on single scattering model.The variation relationship Q-values with frequency of coda wave(Q) in Qingdao and its adjacent see area is obtained by fitting,being.Also,the Q-value for Wanggezhuang M4.0 earthquake swarm sequence in 2003 June in Qingdao city is also calculated and analyzed,indicating that the Q-values did not change much during the earthquake swarm.
Based on seismic waveform data of digital seismic networks of Shandong and Qingdao,the Q-values of coda wave of the area around 4 seismic stations of Qingdao are calculated by using analysis method of wavelet package on single scattering model.The variation relationship Q-values with frequency of coda wave(Q) in Qingdao and its adjacent see area is obtained by fitting,being.Also,the Q-value for Wanggezhuang M4.0 earthquake swarm sequence in 2003 June in Qingdao city is also calculated and analyzed,indicating that the Q-values did not change much during the earthquake swarm.
引文
[1]Aki K.Analysys of the seismic coda of load earthquakesas scattered waves[J].J.Geophys.Res.,1969(74):615-631.
[2]Singh S,Herrmann R B.Regionalization of crustal coda Qin the continental United Stated[J].J Grephys Res,1983(88):527-538.
[3]Rhea S.Q determined from local earthquakes in the Sou-th Carolina Coastal plain[J].Bull Seis Soc Amer,1984(74):2 257-2 268.
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[5]Chout B.Temporal Variation in the attenuation of earth-quake coda near Stone Canyon,California[J].GeophysRes Lett,1979(6):143-146.
[6]Jin A,Aki K.Spatial and temporal correlation betweenQ-1and seismicity and its physical mechanism[J].J Geo-phys Res,1989(94):14 041-14 059.
[7]李白基,秦嘉政,钱晓东,等.云南姚安地区尾波衰减[J].地震学报,2004,26(1):47-52.
[8]张天中,高龙生,张卫平.滇西实验场的Q值及其随时间窗的变化[J].地震学报,1990,12(1):12-21.
[9]马云生,张天中,张焕生.北京及其周边地区尾波Q值分布特征的研究[J].地震学报,1995,17(4):448-458.
[10]Vivtor Wang.Attenuation of Coda Wave at the TresVirgenes Volcanic Area,Baja Californiaa sur,Mexico[J].Bull Seism Ssoc Amer,2001,91(4):683-69.
[11]山东省地震史料编辑室.山东省地震史料汇编[M].北京:地震出版社,1983.
[12]Aki K,Chouet B.Origin of coda waves:source,attenua-tion,and scattering effects[J].J.Geophys.Res.,1975(80):3 322-3 342.
[13]聂永安,曾健,冯德益.三维尾波散射问题的理论研究[J].地震学报,1995,17(1):83-87.
[14]曾健,陈天长,韩渭宾,等.成都遥测台网区域尾波衰减特征及Qc值研究[J].地震学报,1997,19(3):246-253.
[15]刘希强,周惠兰,郑治真,等.基于小波包变换的滤波方法[J].西北地震学报,1999,21(3):248-253.
[16]高龙生,石汝武,华正兴,等,唐山-北京地区Q因子随频率的变化[J].地震学报,1986,8(4):354-365.
[17]张玲,朱建亚,许萍,等,青岛及邻近地区地震活动特征分析[J].华北地震科学,2007,25(2):33-35.
[2]Singh S,Herrmann R B.Regionalization of crustal coda Qin the continental United Stated[J].J Grephys Res,1983(88):527-538.
[3]Rhea S.Q determined from local earthquakes in the Sou-th Carolina Coastal plain[J].Bull Seis Soc Amer,1984(74):2 257-2 268.
[4]Jin A,Cao T,Aki K.Regional change of coda Q in ocean-ic lithosphere[J].J Grephys Res,1985(90):8 651-8 659.
[5]Chout B.Temporal Variation in the attenuation of earth-quake coda near Stone Canyon,California[J].GeophysRes Lett,1979(6):143-146.
[6]Jin A,Aki K.Spatial and temporal correlation betweenQ-1and seismicity and its physical mechanism[J].J Geo-phys Res,1989(94):14 041-14 059.
[7]李白基,秦嘉政,钱晓东,等.云南姚安地区尾波衰减[J].地震学报,2004,26(1):47-52.
[8]张天中,高龙生,张卫平.滇西实验场的Q值及其随时间窗的变化[J].地震学报,1990,12(1):12-21.
[9]马云生,张天中,张焕生.北京及其周边地区尾波Q值分布特征的研究[J].地震学报,1995,17(4):448-458.
[10]Vivtor Wang.Attenuation of Coda Wave at the TresVirgenes Volcanic Area,Baja Californiaa sur,Mexico[J].Bull Seism Ssoc Amer,2001,91(4):683-69.
[11]山东省地震史料编辑室.山东省地震史料汇编[M].北京:地震出版社,1983.
[12]Aki K,Chouet B.Origin of coda waves:source,attenua-tion,and scattering effects[J].J.Geophys.Res.,1975(80):3 322-3 342.
[13]聂永安,曾健,冯德益.三维尾波散射问题的理论研究[J].地震学报,1995,17(1):83-87.
[14]曾健,陈天长,韩渭宾,等.成都遥测台网区域尾波衰减特征及Qc值研究[J].地震学报,1997,19(3):246-253.
[15]刘希强,周惠兰,郑治真,等.基于小波包变换的滤波方法[J].西北地震学报,1999,21(3):248-253.
[16]高龙生,石汝武,华正兴,等,唐山-北京地区Q因子随频率的变化[J].地震学报,1986,8(4):354-365.
[17]张玲,朱建亚,许萍,等,青岛及邻近地区地震活动特征分析[J].华北地震科学,2007,25(2):33-35.
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