邯郸-邢台地区尾波Q_C值分布特征研究
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摘要
利用红山数字地震台和邯郸数字地震台网记录到的2001年3月～2006年7月近震波形资料,采用Sato尾波单次散射模型计算了邯郸-邢台地区不同尾波窗长(20s、30s和40s)的QC值,不同时间窗长QC值的平均结果分别为35.8f0.95、46.0f0.94和59.4f0.93。Q0值分布受地质构造因素影响呈现出明显的横向不均匀性。总体而言,研究区内Q0值较低,η值高,QC值对频度的依赖性强,随频率的增大衰减较快。
By use of the near shock waveform data from Hongshan digital seismostation and Handan digital seismological network from March,2001 to July,2006,QC values with different window length of coda waves 20 s,30 s,40 s in Handan-Xingtai region are calculated with Sato single-scattering attenuation model,the average QC results in different time windows is 35.8f 0.95,46.0f 0.94,59.4f 0.93 respectively.In the studied area,Q0 value affected by tectonic factors shows obviously lateral heterogeneity,generally,Q0 value is lower,η value is higher,QC value strongly depends on the frequency and decreases rapidly with the frequency's in creasing.
By use of the near shock waveform data from Hongshan digital seismostation and Handan digital seismological network from March,2001 to July,2006,QC values with different window length of coda waves 20 s,30 s,40 s in Handan-Xingtai region are calculated with Sato single-scattering attenuation model,the average QC results in different time windows is 35.8f 0.95,46.0f 0.94,59.4f 0.93 respectively.In the studied area,Q0 value affected by tectonic factors shows obviously lateral heterogeneity,generally,Q0 value is lower,η value is higher,QC value strongly depends on the frequency and decreases rapidly with the frequency's in creasing.
引文
1张天中.滇西试验场区的Q值及其随时间窗的变化[J].地震学报,1990,12(1):12～21.1Zhang Tianzhong.TheQ-factor and its time windowdepend-ence in the area of western Yunnan seismological experimentsite[J].Acta Seismologica Sinica,1990,12(1):12-21.(in Chinese)
2马云生.北京及周围地区的尾波Qc分布特征的研究[J].地震学报,1995,17(4):448～458.2Ma Yunsheng.Research on codaQdistribution in Beijingand its surrounding regions[J].Acta Seismologica Sinica,1995,17(4):448-458.(in Chinese)
3王彩勤,等.唐山地区尾波QC值研究[J].华北地震科学,2006,24(1):13～15.3Wang Caiqin,et al.Study on theQCvalue of coda in Tangs-han region[J].North China Earthquake Sciences,2006,24(1):13-15.(in Chinese)
4马宏生,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):39～48.4Ma Hongsheng,et al.Research of temporal change of CodaQCapplied in earthquake prediction[J].Earthquake,2005,25(4):39-48.(in Chinese)
5陈俊华,等.九江-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):65～68.5Chen Junhua,et al.Analysis ofQc value of coda waves aboutaftershocks of Jiujiang-RuichangMs5.7earthquake[J].Journal of Geodesy and Geodynamics,2006,26(3):65-68.(in Chinese)
6吕坚,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):32～36.6Lu Jian,et al.OnQcvalue features of Jiujiang-Ruichangearthquake sequence by Sato model[J].Journal of Geodesyand Geodynamics,2007,27(2):32-36.(in Chinese)
7陈俊华,等.长江三峡库首区的Q值和场地效应[J].大地测量与地球动力学,2006,26(增):112～116.7Chen Junhua,et al.Qvalue and site effects of head region ofThree Gorges reservoir[J].Journal of Geodesy and Geody-namics,2006,26(Supp.):112-116.(in Chinese)
8陈学庭.澜沧和耿马大地震Q值随时间的变化[A].中国地球物理学会年刊[C].北京:地震出版社,1992.8Chen Xueting.Temporal change ofQvalue of coda in Lan-cang-Gengma earthquake[A].Chinese Geophysical SocietyYearly[C].Beijing:Seismological Press,1992.(in Chinese)
9秦嘉政,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):87～97.9Qin Jiazheng,et al.Regional feature of coda attenuation ofaftershocks of Wuding(Yunnan)earthquake in near field[J].Acta Seismologica Sinica,2001,23(1):87-97.(inChinese)
10钱晓东,等.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):9～17.10Qian Xiaodong,et al.Study on theQCvalue of coda for se-quence of aftershocks of ShidianMs5.9earthquake in2001in Yunnan[J].Seismological and Geomagnetic Obser-vation and Research,2004,25(1):9-17.(in Chinese)
11Sato H.Energy propagation including scattering effect:Sin-gle isotropic scattering,approximation[J].BSSA,1977,68:923-948.
12Domingguez Tand Rebollar C J.Attenuation of coda wavesat the Cerro Prieto Geothermal Field,Baja California,Mexico[J].BSSA,1997,87:1368-1374.
13李白基,等.云南姚安地区的尾波衰减[J].地震学报,2004,24(1):47～52.13Li Baiji,et al.The coda attenuation of the Yao’an area inYunnan province[J].Acta Seismologica Sinica,2004,24(1):47-52.(in chinese)
14Pulli J.Attenuation of coda wave in New England[J].BSSA,1984,1149-1166.
15朱新运,等.基于Aki模型的近震S波尾波Q值求解及分析软件研制[J].地震研究,2006,29(1):76～80.15Zhu Xinyun,et al.Development ofQ-value calculating andprocessing software using S-wave coda in local earthquakesbased on Akimodel[J].Journal of Seismological Re-search,2006,29(1):76-80.(in Chinese)
16祝治平,等.邢台震源区及相邻地区地壳上地幔速度结构研究[J].地震学报,1995,17(3):328～334.16Zhu Zhiping,et al.A study of crust and upper mantle struc-ture in Xingtai earthquake area and its adjacent area[J].Acta Seismologica Sinica,1995,17(3)328-334.(in Chi-nese)
17束沛镒,等.利用纯S波输入研究地震台站下方的横波速度结构[J].地球物理学报,2001,45(1):67～75.17Shu Peiyi,et al.A study on transversal wave velocity struc-ture under seismic station by inputting pure S wave[J].Chinese Journal of Geophysics,2001,45(1):67-75.(inChinese)
18Nuttli O W.Lg magnitudes and yield estimates for underground Navaya Zemlya nuclear explosions[J].Bull.Seism.Soc.Am.,1988,78:873-884.
19张学民,等.河北省强震区内外深部S波速度结构特征研究[J].华北地震科学,2001,19(3):1～14.19Zhang Xuemin,et al.Study on the the structure of deep Swave velocity inside and outside macroseismic region of He-bei province[J].North China Earthguake Sciences,2001,19(3):1-14.(in Chinese)
20Zeng Y,Su Fand Aki K.Scattering wave energy propaga-tion in a random isotropic scattering medium,1Theory[J].J Geophys Res,1991,96:607-619.
2马云生.北京及周围地区的尾波Qc分布特征的研究[J].地震学报,1995,17(4):448～458.2Ma Yunsheng.Research on codaQdistribution in Beijingand its surrounding regions[J].Acta Seismologica Sinica,1995,17(4):448-458.(in Chinese)
3王彩勤,等.唐山地区尾波QC值研究[J].华北地震科学,2006,24(1):13～15.3Wang Caiqin,et al.Study on theQCvalue of coda in Tangs-han region[J].North China Earthquake Sciences,2006,24(1):13-15.(in Chinese)
4马宏生,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):39～48.4Ma Hongsheng,et al.Research of temporal change of CodaQCapplied in earthquake prediction[J].Earthquake,2005,25(4):39-48.(in Chinese)
5陈俊华,等.九江-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):65～68.5Chen Junhua,et al.Analysis ofQc value of coda waves aboutaftershocks of Jiujiang-RuichangMs5.7earthquake[J].Journal of Geodesy and Geodynamics,2006,26(3):65-68.(in Chinese)
6吕坚,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):32～36.6Lu Jian,et al.OnQcvalue features of Jiujiang-Ruichangearthquake sequence by Sato model[J].Journal of Geodesyand Geodynamics,2007,27(2):32-36.(in Chinese)
7陈俊华,等.长江三峡库首区的Q值和场地效应[J].大地测量与地球动力学,2006,26(增):112～116.7Chen Junhua,et al.Qvalue and site effects of head region ofThree Gorges reservoir[J].Journal of Geodesy and Geody-namics,2006,26(Supp.):112-116.(in Chinese)
8陈学庭.澜沧和耿马大地震Q值随时间的变化[A].中国地球物理学会年刊[C].北京:地震出版社,1992.8Chen Xueting.Temporal change ofQvalue of coda in Lan-cang-Gengma earthquake[A].Chinese Geophysical SocietyYearly[C].Beijing:Seismological Press,1992.(in Chinese)
9秦嘉政,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):87～97.9Qin Jiazheng,et al.Regional feature of coda attenuation ofaftershocks of Wuding(Yunnan)earthquake in near field[J].Acta Seismologica Sinica,2001,23(1):87-97.(inChinese)
10钱晓东,等.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):9～17.10Qian Xiaodong,et al.Study on theQCvalue of coda for se-quence of aftershocks of ShidianMs5.9earthquake in2001in Yunnan[J].Seismological and Geomagnetic Obser-vation and Research,2004,25(1):9-17.(in Chinese)
11Sato H.Energy propagation including scattering effect:Sin-gle isotropic scattering,approximation[J].BSSA,1977,68:923-948.
12Domingguez Tand Rebollar C J.Attenuation of coda wavesat the Cerro Prieto Geothermal Field,Baja California,Mexico[J].BSSA,1997,87:1368-1374.
13李白基,等.云南姚安地区的尾波衰减[J].地震学报,2004,24(1):47～52.13Li Baiji,et al.The coda attenuation of the Yao’an area inYunnan province[J].Acta Seismologica Sinica,2004,24(1):47-52.(in chinese)
14Pulli J.Attenuation of coda wave in New England[J].BSSA,1984,1149-1166.
15朱新运,等.基于Aki模型的近震S波尾波Q值求解及分析软件研制[J].地震研究,2006,29(1):76～80.15Zhu Xinyun,et al.Development ofQ-value calculating andprocessing software using S-wave coda in local earthquakesbased on Akimodel[J].Journal of Seismological Re-search,2006,29(1):76-80.(in Chinese)
16祝治平,等.邢台震源区及相邻地区地壳上地幔速度结构研究[J].地震学报,1995,17(3):328～334.16Zhu Zhiping,et al.A study of crust and upper mantle struc-ture in Xingtai earthquake area and its adjacent area[J].Acta Seismologica Sinica,1995,17(3)328-334.(in Chi-nese)
17束沛镒,等.利用纯S波输入研究地震台站下方的横波速度结构[J].地球物理学报,2001,45(1):67～75.17Shu Peiyi,et al.A study on transversal wave velocity struc-ture under seismic station by inputting pure S wave[J].Chinese Journal of Geophysics,2001,45(1):67-75.(inChinese)
18Nuttli O W.Lg magnitudes and yield estimates for underground Navaya Zemlya nuclear explosions[J].Bull.Seism.Soc.Am.,1988,78:873-884.
19张学民,等.河北省强震区内外深部S波速度结构特征研究[J].华北地震科学,2001,19(3):1～14.19Zhang Xuemin,et al.Study on the the structure of deep Swave velocity inside and outside macroseismic region of He-bei province[J].North China Earthguake Sciences,2001,19(3):1-14.(in Chinese)
20Zeng Y,Su Fand Aki K.Scattering wave energy propaga-tion in a random isotropic scattering medium,1Theory[J].J Geophys Res,1991,96:607-619.
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