豫北及邻区地震双差法重新定位研究
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摘要
利用双差地震定位法对豫北及邻区1985—2008年的787次地震进行重新定位,得到了497次地震定位结果。结果显示:重新定位后震中呈条带状丛集分布,部分地区地震向构造带趋近;震源深度主要分布在上地壳和中地壳内,平均深度13.3 km,10～20 km为多震层深度范围。
The earthquakes that occurred in the area of Yubei and adjacent region from 1985 to 2008 were relocated with the double difference method and the results of 497 earthquakes were obtained.The result shows that the distribution of relocated epicenters appear zonal,while the earthquakes in a part of areas get close to tectonic belts.The most hypocenter depths in the area distribute mainly within the upper and middle crust.The average hypocenter depth is 13.3 km and the seismogenic layer ranges from 10 km to 20 km.
The earthquakes that occurred in the area of Yubei and adjacent region from 1985 to 2008 were relocated with the double difference method and the results of 497 earthquakes were obtained.The result shows that the distribution of relocated epicenters appear zonal,while the earthquakes in a part of areas get close to tectonic belts.The most hypocenter depths in the area distribute mainly within the upper and middle crust.The average hypocenter depth is 13.3 km and the seismogenic layer ranges from 10 km to 20 km.
引文
1 Waldhauser F and Ellsworth W.A double-difference earth-quake location algorithm:method and application to theNorthern Hayward fault,California[J].Bull Seism Soc Am.,2000,90(6):1 353-1 368.
2 Waldhauser F and Ellsworth W.Fault structure and mechan-ics of the California,from double-difference earthquake loca-tions[J].J Geophys Res.,2002,107(B3):ESE3-1-3,14.
3杨智娴,等.双差地震定位法在我国中西部地区地震精确定位中的应用[J].中国科学,2003,33(D辑增刊):129-134.(Yang Zhixian,et a1.Accurate relocation of earth-quakes in central-western China using the double differen-ceearthquake location algorithm[J].Secience in China(Se-ries D),2003,33(Supp1.):129-134)
4朱艾斓,等.川西地区小震重新定位及其活动构造意义[J].地球物理学报,2005,48(3):629-636.(Zhu Ailan,et a1.Relocation of small earthquakes in western Sichuan,China and its implications for active tectonics[J].ChineseJournal of Geophysics,2005,48(3):629-636)
5黄嫒,杨建思,张天中.2003年新疆巴楚-伽师地震序列的双差法重新定位研究[J].地球物理学报,2006,49(1):162-169.(Huang Yuan,Yang Jiansi and ZhangTianzhong.Relocation of the Bachu-Jiashi,Xinjiang earth-quake sequence in 2003 using the double-difference locationalgorithm[J].Chinese Journal of Geophysics,2006,49(1):162-169)
6姚运生,等.双差地震定位程序的改进[J].大地测量与地球动力学,2007,(3):76-79.(Yao Yunsheng,et a1.Im-provement of relocation program based on double-differencealgorithm[J].Journal of Geodesy and Geodynamics,2007,(3):76-79)
7魏贵春,等.郭家坝地震序列的双差法重新定位研究[J].大地测量与地球动力学,2010,(6):56-59.(Wei Gui-chun,et a1.Relocation of Guojiaba earthquake sequence byusing double difference location algorithm[J].Journal ofGeodesy and Geodynamics,2010,(6):56-59)
8于湘伟,张怀,陈运泰.华北地区地震重新定位结果分析[J].大地测量与地球动力学,2010,(2):29-33.(YuXiangwei,Zhang Huai and Chen Yuntai.Analysis of reloca-ted earthquakes in north China region[J].Journal of Geode-sy and Geodynamics,2010,(2):29-33)
9嘉世旭,刘昌铨.华北裂谷盆地南部菏泽-长治地震测深剖面结果解释[J].华北地震科学,1991,9(2):11-20.(Jia Shixu and Liu Changquan.Interpretation of Heze-Chan-gzhi DSS profile in south of the basin in North China[J].North China Earthquake Sciences,1991,9(2):11-20)
10莘海亮,等.安阳及邻区三维地壳速度结构研究[J].地球物理学进展,2011,(待刊).(Xin Hailiang,et al.3-Dcrustal velocity structure in Anyang and its adjacent regions[J].Progress in Geophysics,2011,(to be published))
11张小涛,等.双差地震定位法在邯郸-邢台地区地震精确定位中的初步应用[J].地震研究,2008,31(1),37-41.(Zhang Xiaotao,et al.The preliminary application of doub-le-difference location method in precise location of earth-quake in Handan-Xingtai region[J].Journal of Seismologi-cal Research,2008,31(1),37-41)
12万永革,等.利用小震分布和区域应力场确定大震断层面参数方法及其在唐山地震序列中的应用[J].地球物理学报,2008,51(3):793-804.(Wan Yongge,et al.Analgorithm of fault parameter determination using distributionof small earthquakes and parameters of regional stress fieldand its application to Tangshan earthquake sequence[J].Chinese Journal of Geophysics,2008,51(3):793-804)
13刁桂苓,张四昌,赵军.用现今小地震研究历史强震的震源断层——以1830年河北磁县7 12级地震为例[J].地震地质,1999,21(2):121-126.(Diao Guiling,ZhangSichang and Zhao Jun.The focal faults of historical greatearthquakes inferred based on current small shocks-takingan example of 1830 M7 12 earthquake Hebei,China[J].Seismology and Geology,1999,21(2):121-126)
14于平,杨冬,杨宝俊.华北地台聊城-兰考断裂地球物理场基本特征及其构造意义[J].吉林大学学报(地球科学版),2003,33(1):106-110.(Yu Ping,Yang Dong andYang Baojun.The basic character of geophysical field ofLiaocheng-Lankao fault in northern China platform and thetectonic significance[J].Journal of Jilin University(EarthScience Edition),2003,33(1):106-110)
15漆家福.林县盆地新生代伸展构造[A],现代地壳运动研究[C].北京:地震出版社,1985,107-117.(Qi Jiafu.Cenozoic extensional tectonics of Linxian basin[A].Re-search of modern crust movement[C].Beijing:Seismologi-cal Press,1985,107-117)
16吕梦麟,商宏宽.林县小震活动特征及与邢台地震活动的关系[J].华北地震科学,1986,4(2):33-43.(LüMenglin and Shang Hongkuan.The characteristics of the ac-tivity of minor earthquake of Linxian and its relation to theactivity of Xingtai earthquake[J].North China EarthquakeSciences,1986,4(2):33-43)
2 Waldhauser F and Ellsworth W.Fault structure and mechan-ics of the California,from double-difference earthquake loca-tions[J].J Geophys Res.,2002,107(B3):ESE3-1-3,14.
3杨智娴,等.双差地震定位法在我国中西部地区地震精确定位中的应用[J].中国科学,2003,33(D辑增刊):129-134.(Yang Zhixian,et a1.Accurate relocation of earth-quakes in central-western China using the double differen-ceearthquake location algorithm[J].Secience in China(Se-ries D),2003,33(Supp1.):129-134)
4朱艾斓,等.川西地区小震重新定位及其活动构造意义[J].地球物理学报,2005,48(3):629-636.(Zhu Ailan,et a1.Relocation of small earthquakes in western Sichuan,China and its implications for active tectonics[J].ChineseJournal of Geophysics,2005,48(3):629-636)
5黄嫒,杨建思,张天中.2003年新疆巴楚-伽师地震序列的双差法重新定位研究[J].地球物理学报,2006,49(1):162-169.(Huang Yuan,Yang Jiansi and ZhangTianzhong.Relocation of the Bachu-Jiashi,Xinjiang earth-quake sequence in 2003 using the double-difference locationalgorithm[J].Chinese Journal of Geophysics,2006,49(1):162-169)
6姚运生,等.双差地震定位程序的改进[J].大地测量与地球动力学,2007,(3):76-79.(Yao Yunsheng,et a1.Im-provement of relocation program based on double-differencealgorithm[J].Journal of Geodesy and Geodynamics,2007,(3):76-79)
7魏贵春,等.郭家坝地震序列的双差法重新定位研究[J].大地测量与地球动力学,2010,(6):56-59.(Wei Gui-chun,et a1.Relocation of Guojiaba earthquake sequence byusing double difference location algorithm[J].Journal ofGeodesy and Geodynamics,2010,(6):56-59)
8于湘伟,张怀,陈运泰.华北地区地震重新定位结果分析[J].大地测量与地球动力学,2010,(2):29-33.(YuXiangwei,Zhang Huai and Chen Yuntai.Analysis of reloca-ted earthquakes in north China region[J].Journal of Geode-sy and Geodynamics,2010,(2):29-33)
9嘉世旭,刘昌铨.华北裂谷盆地南部菏泽-长治地震测深剖面结果解释[J].华北地震科学,1991,9(2):11-20.(Jia Shixu and Liu Changquan.Interpretation of Heze-Chan-gzhi DSS profile in south of the basin in North China[J].North China Earthquake Sciences,1991,9(2):11-20)
10莘海亮,等.安阳及邻区三维地壳速度结构研究[J].地球物理学进展,2011,(待刊).(Xin Hailiang,et al.3-Dcrustal velocity structure in Anyang and its adjacent regions[J].Progress in Geophysics,2011,(to be published))
11张小涛,等.双差地震定位法在邯郸-邢台地区地震精确定位中的初步应用[J].地震研究,2008,31(1),37-41.(Zhang Xiaotao,et al.The preliminary application of doub-le-difference location method in precise location of earth-quake in Handan-Xingtai region[J].Journal of Seismologi-cal Research,2008,31(1),37-41)
12万永革,等.利用小震分布和区域应力场确定大震断层面参数方法及其在唐山地震序列中的应用[J].地球物理学报,2008,51(3):793-804.(Wan Yongge,et al.Analgorithm of fault parameter determination using distributionof small earthquakes and parameters of regional stress fieldand its application to Tangshan earthquake sequence[J].Chinese Journal of Geophysics,2008,51(3):793-804)
13刁桂苓,张四昌,赵军.用现今小地震研究历史强震的震源断层——以1830年河北磁县7 12级地震为例[J].地震地质,1999,21(2):121-126.(Diao Guiling,ZhangSichang and Zhao Jun.The focal faults of historical greatearthquakes inferred based on current small shocks-takingan example of 1830 M7 12 earthquake Hebei,China[J].Seismology and Geology,1999,21(2):121-126)
14于平,杨冬,杨宝俊.华北地台聊城-兰考断裂地球物理场基本特征及其构造意义[J].吉林大学学报(地球科学版),2003,33(1):106-110.(Yu Ping,Yang Dong andYang Baojun.The basic character of geophysical field ofLiaocheng-Lankao fault in northern China platform and thetectonic significance[J].Journal of Jilin University(EarthScience Edition),2003,33(1):106-110)
15漆家福.林县盆地新生代伸展构造[A],现代地壳运动研究[C].北京:地震出版社,1985,107-117.(Qi Jiafu.Cenozoic extensional tectonics of Linxian basin[A].Re-search of modern crust movement[C].Beijing:Seismologi-cal Press,1985,107-117)
16吕梦麟,商宏宽.林县小震活动特征及与邢台地震活动的关系[J].华北地震科学,1986,4(2):33-43.(LüMenglin and Shang Hongkuan.The characteristics of the ac-tivity of minor earthquake of Linxian and its relation to theactivity of Xingtai earthquake[J].North China EarthquakeSciences,1986,4(2):33-43)
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