| 秭归罗圈荒微震群的Q值与震源参数特征 |
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| 引用本文： | 吴海波,陈俊华,薛军蓉,罗俊秋.秭归罗圈荒微震群的Q值与震源参数特征[J].大地测量与地球动力学,2007,27(Z1):35-38. |
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| 作者姓名： | 吴海波 陈俊华 薛军蓉 罗俊秋 |
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| 作者单位： | 湖北省地震局，武汉 430071 |
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| 摘 要： | 应用Mereu方法计算了2007年9月22日到10月7日发生在秭归罗圈荒地区微震群中的17次地震的震源参数和区域品质因子Q值,得到的Q值与频率的依赖关系为Q(f)=71.6f 0.808。与三峡库首区蓄水前后低的背景Q值比较，显示秭归罗圈荒地区微震群是一次普通的地壳介质应力调整。
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| 关 键 词： | 秭归罗圈荒微震群 Q值 震源参数 拐角频率 应力调整 |
CHARACTERISTICS OF Q VALUE AND FOCUS PARAMETERS OF MICRO-EARTHQUAKE SWARM IN LUOQUANHUANG,ZIGUI |
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| Wu Haibo,Chen Junhua,Xue Junrong,Luo Junqiu.CHARACTERISTICS OF Q VALUE AND FOCUS PARAMETERS OF MICRO-EARTHQUAKE SWARM IN LUOQUANHUANG,ZIGUI[J].Journal of Geodesy and Geodynamics,2007,27(Z1):35-38. |
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| Authors: | Wu Haibo Chen Junhua Xue Junrong Luo Junqiu |
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| Institution: | Earthquake Administration of Hubei Province, Wuhan 430071 |
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| Abstract: | The Q value and focus parameters of the micro earthquake swarm occured from Sept.22 to Dct.7,2007 in Luoquanhuang,Zigui were calculated with Mereu and Moya algorithm,respectively.The fitting relation between the Q and the frequency was Q(f)=71.7 f 0.808 .Comparison with the low background Q values before and after impondment in the region of Three Gorges Reservoir it indicated that this micro earthquake swarm was a common stress adjustment event in the crustal midea. |
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| Keywords: | micro- earthquake swarm in Luoquanhuang Zigui region Q value source parameters corner frequancy stress adjustment |
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