| sPL震相在九江—瑞昌M_S5.7地震序列震源深度测定中的应用 |
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| 引用本文： | 项月文,罗丽,肖孟仁,汤兰荣,郑斌.sPL震相在九江—瑞昌M_S5.7地震序列震源深度测定中的应用[J].华北地震科学,2014,32(2):7-13. |
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| 作者姓名： | 项月文 罗丽 肖孟仁 汤兰荣 郑斌 |
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| 作者单位： | 江西省地震局,南昌,330039 |
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| 基金项目： | 中国地震局地震科技星火计划项目 |
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| 摘 要： | 利用近震深度震相sPL的基本特征和九江地震台的波形资料,对2005年11月26日九江—瑞昌MS5.7地震序列ML2.0地震进行了sPL震相分析,得到了该地震序列较为可靠的震源深度分布,并与CAP波形反演、双差定位、sPn震相、Hyposat等方法定位的结果进行了对比。结果表明,sPL震相测定的近震震源深度较为可信,该地震序列的震源深度分布在9~11km范围内。
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| 关 键 词： | sPL震相 震源深度 九江—瑞昌MS5.7地震序列 |
Application of sPL Phase in Focal Depth Determination of the Jiujiang-Ruichang MS5.7 Earthquake Sequence |
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| XIANG Yue-wen,LUO Li,XIAO Meng-ren,TANG Lan-rong,ZHENG Bin.Application of sPL Phase in Focal Depth Determination of the Jiujiang-Ruichang MS5.7 Earthquake Sequence[J].North China Earthquake Sciences,2014,32(2):7-13. |
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| Authors: | XIANG Yue-wen LUO Li XIAO Meng-ren TANG Lan-rong ZHENG Bin |
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| Institution: | (Earthquake Administration of Jiangxi Province, Nanehang 330039, China) |
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| Abstract: | In this paper, we select ML≥2.0 aftershocks of the 26 November 2005 Jiujiang-Ruichang Ms5.7 earthquake sequence recorded on Jiujiang seismostation. According to the characteristics of depth phase sPL, the sPL phase analysis for this earthquakes are conducted. The reliable results of focal depth distributions calculated by sPL phases are given and compared with that obtained by other methods （the CAP method, the method of double-difference location, the method of sPn phase, the Hyposat method, etc）. The results show it is feasible by measuring near-field earthquake depth using sPL phase. The earthquake sequence concentrate in the depth range of about 9~11 kin. |
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| Keywords: | sPL phase focal depth the Jiujiang-Ruichang MS5 7 earthquake sequence |
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