| 2004年甘肃临泽震群序列Q_C值特征研究 |
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| 引用本文： | 李兴坚,许玉红,李东生,刘小明,刘鸿斌,丁宏,陈建军.2004年甘肃临泽震群序列Q_C值特征研究[J].地震研究,2009,32(4). |
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| 作者姓名： | 李兴坚 许玉红 李东生 刘小明 刘鸿斌 丁宏 陈建军 |
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| 作者单位： | 甘肃省地震局高台地震台,甘肃,高台,734300 |
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| 基金项目： | 中国地震局三结合项目(676)资助 |
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| 摘 要： | 采用Sato单次散射模型,利用高台地震台的近场数字地震记录,研究了临泽震群序列尾波QC值在60s流逝时间下的变化特征,得到QC值随频率的变化关系QC(f)=(27.67±2.94)f(0.9924±0.0411)。分析发现:在中等地震频发时段,QC值变化起伏较弱且偏低;研究结果与民乐—山丹地震序列接近,故认为这个结果近似了祁连山地震带中段地区的介质特性。
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| 关 键 词： | Sato模型 QC值特征 临泽震群 |
Study on the Q_c Value Characteristics for Sequence of Gansu Linze Swarm in June 2004 |
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| LI Xing-jian,XU Yu-hong,LI Dong-sheng,LIU Xiao-ming,LIU Hong-bin,DING Hong,CHEN Jian-jun.Study on the Q_c Value Characteristics for Sequence of Gansu Linze Swarm in June 2004[J].Journal of Seismological Research,2009,32(4). |
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| Authors: | LI Xing-jian XU Yu-hong LI Dong-sheng LIU Xiao-ming LIU Hong-bin DING Hong CHEN Jian-jun |
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| Institution: | Gaotai seismostation;the seismology bureau of Gansu province;Gaotai 734300;Gansu;China |
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| Abstract: | By means of Sato scattering of single model and Gaotai seismic station of the near-field digital seismic re-cords, this paper studies the characteristics of Linze swarm sequence coda Q_C value, also draws a conclusion of Q_C value changing with frequency, which is Q_C(f) = (27.67±2. 94)f~((0.9924±0.0411)). Analysis found that during the period of frequent middle earthquake, ups and downs of Q_C values is weak and Q_C value is low; The results of this study is similar with the Minle-Shandan earthquake sequence. So we believe that this result is similar with the medium characteristics in the middle section of Qilian mountain. |
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| Keywords: | Sato model QC value characteristics Linze swarm |
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