文安地震与区域应变场变化综合研究
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摘要
通过对应变连续观测台站资料的处理以及对区域小震震源机制解的分析,研究了首都圈区域应变场的变化特征,发现文安5.1级地震前局部地区主应变方向与该区小震震源机制P轴方位出现偏转,变化基本同步。综合分析认为,文安地震前局部应变场的异常变化时间上从2006年4月开始,空间范围为200km。
The characteristics of regional strain field in the Capital Circle are studied by analyzing the strain data of continuous observation and the focal mechanism of small earthquakes. It shows that the direction of regional principal strain and azimuth of the principal compression stress axis turned synchronously before Wenan Ms5.1 earthquake since Apr. 2006 and the special scale of change was about 200 km.
The characteristics of regional strain field in the Capital Circle are studied by analyzing the strain data of continuous observation and the focal mechanism of small earthquakes. It shows that the direction of regional principal strain and azimuth of the principal compression stress axis turned synchronously before Wenan Ms5.1 earthquake since Apr. 2006 and the special scale of change was about 200 km.
引文
1张晶,等.文安地震与首都圈地区数字化应变资料分析[J].地震,2007,27(1):39-46.1Zhang Jing,et al.Analysis on digital strain observation be-fore Wenan earthquake in Capital Circle area[J].Earth-quake,2007,27(1):39-46.
2焦青,等.文安5.1级地震前兆变化特征分析[J].大地测量与地球动力学,2007,27(6):96-992Jiao Qing,et al.On precursor variation characteristics before WenanM5.1earthquake[J].Journal of Geodesy and Geody-namics,2007,27(6):96-99.(in Chinese)
3焦青,范国胜.河北文安地震前后首都圈跨断层位移的变化特征[J].大地测量与地球动力学,2007,27(6):17-21.3Jiao Qing and Fan Guosheng.On characteristics of fault-crossing displacement variation in Capital area before and after Wenan earthquake[J].Journal of Geodesy and Geody-namics,2007,27(6):17-21.(in Chinese)
4孙加林,李炜,阎海滨.P轴转向是“前兆地震”的一个可能判据[J].地震科学研究,1983,1:1-4.4Sun Jialin,Li Wei and Yan Haibin.Turning of P axis may be a possible criterion of“foreshock”[J].Earthquake Sci-entific Research,1983,1:1-4.(in Chinese)
5曹井泉,刘芳.2003年6月10日托克托Ms4.2级地震的意义[J].华北地震科学,2004,22(3):52-55.5Cao Jingquan and Liu Fang.The significance of TuoketuoMs4.2earthquake that occurred on Jun.10,2003[J].North China Earthquake Sciences,2004,22(3):52-55.(in Chi-nese)
6刘芳,等.内蒙古五原震群震源参数的异常特征[J].山西地震,2006,3:11-16.6Liu Fang,et al.Anomaly characteristic of source parameter of Wuyuan earthquake swarm in Inner Mongolia[J].Earth-quake Research in Shanxi,2006,3:11-16.(in Chinese)
7周翠英,等.中、强震前应力场动态演变特征综合分析[J].地震,2000,20(2):27-36.7Zhou Cuiying,et al.Comprehensive analysis of dynamic e-volution characteristics of stress field before moderate and strong earthquakes[J].Earthquake,2000,20(2):27～36.(in Chinese)
8郗钦文,杨林章,黎凯武.地球对引潮力的响应及综合分析[J].中国地震,1994,9(增刊):83-89.8Xi Qinwen,Yang Linzhang and Li Kaiwu.Earth’s response to tidal generating force and its synthetic analysis[J].Earth-quake Research in China,1994,9(Supp.):83-89.(in Chinese)
9张国民,耿鲁明,石耀霖.中国大陆强震轮回活动的计算机模型研究[J].中国地震,1993,9(1):20-32.9Zhang Guomin,Geng Luming and Shi Yaolin.A computer model for cyclic activities of strong earthquake in continental seismic zones[J].Earthquake Research in China,1993,9(1):20-32.(in Chinese)
10杨国华,江在森,刘广余.华北地区的水平运动场与昆仑山8.1级地震的可能关系[J].大地测量与地球动力学,2007,27(2):10-15.10Yang Guohua,Jiang Zaisen and Liu Guangyu.Possible re-lation of horizontal movement field in north China to Kunlun MountainMs8.1earthquake[J].Journal Of Geodesy and Geodynamics,2007,27(2):10-15.(in Chinese)
2焦青,等.文安5.1级地震前兆变化特征分析[J].大地测量与地球动力学,2007,27(6):96-992Jiao Qing,et al.On precursor variation characteristics before WenanM5.1earthquake[J].Journal of Geodesy and Geody-namics,2007,27(6):96-99.(in Chinese)
3焦青,范国胜.河北文安地震前后首都圈跨断层位移的变化特征[J].大地测量与地球动力学,2007,27(6):17-21.3Jiao Qing and Fan Guosheng.On characteristics of fault-crossing displacement variation in Capital area before and after Wenan earthquake[J].Journal of Geodesy and Geody-namics,2007,27(6):17-21.(in Chinese)
4孙加林,李炜,阎海滨.P轴转向是“前兆地震”的一个可能判据[J].地震科学研究,1983,1:1-4.4Sun Jialin,Li Wei and Yan Haibin.Turning of P axis may be a possible criterion of“foreshock”[J].Earthquake Sci-entific Research,1983,1:1-4.(in Chinese)
5曹井泉,刘芳.2003年6月10日托克托Ms4.2级地震的意义[J].华北地震科学,2004,22(3):52-55.5Cao Jingquan and Liu Fang.The significance of TuoketuoMs4.2earthquake that occurred on Jun.10,2003[J].North China Earthquake Sciences,2004,22(3):52-55.(in Chi-nese)
6刘芳,等.内蒙古五原震群震源参数的异常特征[J].山西地震,2006,3:11-16.6Liu Fang,et al.Anomaly characteristic of source parameter of Wuyuan earthquake swarm in Inner Mongolia[J].Earth-quake Research in Shanxi,2006,3:11-16.(in Chinese)
7周翠英,等.中、强震前应力场动态演变特征综合分析[J].地震,2000,20(2):27-36.7Zhou Cuiying,et al.Comprehensive analysis of dynamic e-volution characteristics of stress field before moderate and strong earthquakes[J].Earthquake,2000,20(2):27～36.(in Chinese)
8郗钦文,杨林章,黎凯武.地球对引潮力的响应及综合分析[J].中国地震,1994,9(增刊):83-89.8Xi Qinwen,Yang Linzhang and Li Kaiwu.Earth’s response to tidal generating force and its synthetic analysis[J].Earth-quake Research in China,1994,9(Supp.):83-89.(in Chinese)
9张国民,耿鲁明,石耀霖.中国大陆强震轮回活动的计算机模型研究[J].中国地震,1993,9(1):20-32.9Zhang Guomin,Geng Luming and Shi Yaolin.A computer model for cyclic activities of strong earthquake in continental seismic zones[J].Earthquake Research in China,1993,9(1):20-32.(in Chinese)
10杨国华,江在森,刘广余.华北地区的水平运动场与昆仑山8.1级地震的可能关系[J].大地测量与地球动力学,2007,27(2):10-15.10Yang Guohua,Jiang Zaisen and Liu Guangyu.Possible re-lation of horizontal movement field in north China to Kunlun MountainMs8.1earthquake[J].Journal Of Geodesy and Geodynamics,2007,27(2):10-15.(in Chinese)
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