延怀盆地设定地震浅析
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摘要
通过延怀盆地构造背景、新构造活动、古地震等资料的分析,综合构造应力场模拟、构造类比、大震离逝率、孕震蓄能等因素及由经验公式推断的研究结果,对延怀盆地设定地震相关参数进行了研究。结果表明,延怀盆地设定地震的震级上限为7,发震断层为方家冲—营门矿段断层,震源深度为10 km左右。
Through analyzing the data of tectonic background,neo-tectonic movement,paleoearthquake,based on the research results by the means of tectonic stress field simulation,seismogenic structure similarity,strong earthquake elapsing rate,quake-breeding and energy-storing condition,et al.,the scenario earthquake parameters in Yanqing-Huailai Basin are preliminarily studied.The result shows that the maximum magnitude of scenario earthquake is 7,on the seismogenic fault of Fangjiachong-Yingmenkuang,and focal depth is about 10 km.
Through analyzing the data of tectonic background,neo-tectonic movement,paleoearthquake,based on the research results by the means of tectonic stress field simulation,seismogenic structure similarity,strong earthquake elapsing rate,quake-breeding and energy-storing condition,et al.,the scenario earthquake parameters in Yanqing-Huailai Basin are preliminarily studied.The result shows that the maximum magnitude of scenario earthquake is 7,on the seismogenic fault of Fangjiachong-Yingmenkuang,and focal depth is about 10 km.
引文
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[3]吴子荣,袁宝印,孙建中.延-怀盆地新构造与地震[J].地震地质,1979,1(2):46-55.
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[12]黄福明,马廷著,李群芳,等.华北北部构造应力场[J].中国地震,1995,11(2):121-131.
[13]文彦君,郑文涛.延怀盆地现代构造应力场模拟与官厅水库大坝地震安全性初探[J].地震地质,2004,26(1):141-152.
[14]陈国星,任利生.首都圈地震危险区划分及未来强震地点预测[J].地震,1994,14(S1):125-135.
[15]祝治平,张先康,张建狮,等.北京-怀来-丰镇剖面地壳上地幔构造与速度结构研究[J].地震学报,1997,19(5):499-505.
[16]Anderson J G,Wesnousky S G,Stirling M W,et al..Earth-quake size as a function of fault slip rate[J].Bulletin of theSeismological Society of America,1996,86(3):683-690.
[2]傅征祥,刘杰,刘桂萍.张家口-蓬莱断裂带的中长期强地震危险性研究[J].中国地震,2000,16(4):335-341.
[3]吴子荣,袁宝印,孙建中.延-怀盆地新构造与地震[J].地震地质,1979,1(2):46-55.
[4]车兆宏.首都圈断层活动性研究[J].华北地震科学,1993,11(2):23-33.
[5]王若柏,杨国华,耿士昌,等.北京地区地壳形变场及其动态特征[J].地震地质,1994,16(1):1-9.
[6]刘昌铨,嘉世旭,刘明军,等.延庆-怀来盆地大震危险性分析研究[J].地震学报,1997,19(5):517-523.
[7]徐锡伟,吴卫民,张先康,等.首都圈地区地壳最新构造变动与地震[M].北京:科学出版社,2002.
[8]李乐,陈棋福,陈颙.首都圈地震活动构造成因的小震精定位分析[J].地球物理学进展,2007,22(1):24-34.
[9]黄耕,李清河,孙业君,等.江苏及邻区地壳上地幔结构研究[J].西北地震学报,2006,28(4):369-375.
[10]刘明清,刘敏,张先,等.延庆、怀来地区地壳深部磁性构造与地震的研究[J].华北地震科学,1994,12(3):53-58.
[11]章纯.中国东部地区地震活动与构造应力场关系的有限元数值模拟[J].西北地震学报,2007,29(3):230-234.
[12]黄福明,马廷著,李群芳,等.华北北部构造应力场[J].中国地震,1995,11(2):121-131.
[13]文彦君,郑文涛.延怀盆地现代构造应力场模拟与官厅水库大坝地震安全性初探[J].地震地质,2004,26(1):141-152.
[14]陈国星,任利生.首都圈地震危险区划分及未来强震地点预测[J].地震,1994,14(S1):125-135.
[15]祝治平,张先康,张建狮,等.北京-怀来-丰镇剖面地壳上地幔构造与速度结构研究[J].地震学报,1997,19(5):499-505.
[16]Anderson J G,Wesnousky S G,Stirling M W,et al..Earth-quake size as a function of fault slip rate[J].Bulletin of theSeismological Society of America,1996,86(3):683-690.
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