| 胶东半岛及两侧海域尾波Q值分析 |
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| 引用本文： | 李霞,张志慧,许萍,李亚军.胶东半岛及两侧海域尾波Q值分析[J].地震地磁观测与研究,2008,29(2):14-20. |
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| 作者姓名： | 李霞 张志慧 许萍 李亚军 |
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| 作者单位： | 中国济南,250014,山东省地震局 |
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| 摘 要： | 根据单次散射（Aki）模型，利用2003年至今山东台网记录的26次2．9级以上地震的数字化地震波，研究并探讨了胶东半岛及两侧海域平均尾波Q值，在1～18Hz的频率域范围内，Q值与频率的依赖关系为：胶东北部海域Qc=（313士42），f^（0.653±0.145），胶东内陆Qc=（319±88）f^（0.649±0.145），黄海海域Qc=（259±60）f^（0.757±0.277）,与国内其他区域尾波Q值研究结果相比，本区域Qc为高值、对频率低依赖性区域。可能与本研究区内构造活动弱、地震活动水平低有关。
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| 关 键 词： | 尾波Q值 单次散射 依赖性 |
| 文章编号： | 1003-3246(2008)02-0014-07 |
| 修稿时间： | 2007年9月24日 |
Analysis of Q value of coda waves in Jiaodong Peninsula and neighbour sea areas |
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| Li Xia,Zhang Zhihui,Xu Ping,Li Yajun.Analysis of Q value of coda waves in Jiaodong Peninsula and neighbour sea areas[J].Seismological and Geomagnetic Observation and Research,2008,29(2):14-20. |
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| Authors: | Li Xia Zhang Zhihui Xu Ping Li Yajun |
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| Institution: | (Earthquake Administration of Shandong Province, J inan 250014, China) |
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| Abstract: | Based on the single scatter model （Aki）, using 26 earthquake digital wave data above ML≥2.9 from 2003 to now recorded by Shandong earthquake net, the average Q value of coda in relative region is calculated and relationship between Q value and frequency is discussed. The results are：Qc= （313±42）f^（0.653±0.145） in sea areas upstate Jiaodong Peninsula; Qc=（319±88）f^（03649±0.145） in Jiaodong inland; Qc=（259±60）f^（0.757±0.277） in Huanghai areas. Contrasting the result with that of other domestic region, the coda scatter feature is that the Q value is higher but dependence on frequency is lower, so it is considered that tectonic activity and seismic activity are low in this region. |
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| Keywords: | Q value of coda single scatter dependent relation |
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