东昆仑断裂带古地震综合研究
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摘要
整合多年来前人对东昆仑活动断裂带各段落古地震零散的现场考证结果,经过分析将其归并成68条独立的古地震事件及4条历史地震.根据功能原理,从理论上推导出断层段各震级档地震的约束关系.利用现代地震统计得到的区域地震活动性参数b、现场考证得到的各区段平均走滑速率、各震级档一次地震事件的平均位错量和破裂带长度,计算各段和全带不同震级档地震的平均复发周期,在此基础上讨论其地震活动规律.
By sorting out and analyzing the previous research of the pioneers about East Kunlun Fault Zone,this article got 68 independent paleoseismic events and 4 historic events.According to the function principle,we deduced the constraint relations of earthquake magnitudes of the fault segment in theory.We calculated the average seismic recurrence period of the different earthquake magnitudes in all the segments using such physical quantities as the regional seismicity parameters(b value),the average slip rate,the average dislocation and the length of rupture zone,which were got by counting modern seismicity and on-the-spot investigations,and then discussed the seismic activity laws on these bases.
By sorting out and analyzing the previous research of the pioneers about East Kunlun Fault Zone,this article got 68 independent paleoseismic events and 4 historic events.According to the function principle,we deduced the constraint relations of earthquake magnitudes of the fault segment in theory.We calculated the average seismic recurrence period of the different earthquake magnitudes in all the segments using such physical quantities as the regional seismicity parameters(b value),the average slip rate,the average dislocation and the length of rupture zone,which were got by counting modern seismicity and on-the-spot investigations,and then discussed the seismic activity laws on these bases.
引文
[1]青海省地震局,中国地震局地壳应力研究所.东昆仑活动断裂带[M].北京:地震出版社,1999.Seismological Bureau of Qinghai Province,Institute of CrustalDynamics,CEA.Eastern Kunlun Active Fault Zone[M](inChinese).Beijing:Seismological Press,1999.
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[3]李春峰,贺群禄,赵国光.东昆仑活动断裂带东段古地震活动特征[J].地震学报,2005,27(1):60-67.Li C F,He Q L,Zhao G G.Paleo-earthquake Studies on TheEastern Section of the Kunlun Fault[J].Acta SeismologicaSinica(in Chinese),2005,27(1):60-67.
[4]胡道功,叶培盛,吴芳,等.东昆仑断裂带西大滩段晚第四纪古地震历史[J].第四纪研究,2008,28(2):214-221.Hu D G,Ye P S,Wu F,et al.Late quaternary seismichistory on the Xidatan segment of East Kunlun fault zone innorthern Tibet[J].Quaternary Sciences(in Chinese),2008,28(2):214-221.
[5]曾秋生.东昆仑断裂带的古地震研究[J].高原地震,1992,4(2):10-18.Zeng Q S.A study on paleoearthquakes in Eastern Kunlunfault zone[J].Earthquake Research in Plateau(in Chinese),1992,4(2):10-18.
[6]李陈侠.东昆仑断裂带东段(玛沁-玛曲)晚第四纪长期滑动习性研究[J].国际地震动态,2010,(3):36-38.Li C X.The long-term faulting behavior of the EasternSegment(Maqin-Maqu)of the East Kunlun fault since the latequaternary[J].Recent Development of World(in Chinese),2010,(3):36-38.
[7]胡道功,吴中海,吴珍汉,等.东昆仑断裂带库赛湖段晚第四纪古地震研究[J].第四纪研究,2007,27(1):27-34.Hu D G,Wu Z H,Wu Z H,et al.Late quaternary seismichistory on the Xidatan segment of east Kunlun fault zone inNorthern Tibet[J].Quaternary Sciences(in Chinese),2007,27(1):27-34.
[8]胡道功,叶培盛,吴珍汉,等.东昆仑断裂带西大滩段全新世古地震研究[J].第四纪研究,2006,26(6):1012-1020.Hu D G,Ye P S,Wu Z H,et al.Research on Holocenepaleoearthquakes on the Xidatan segment of the East Kunlunfault zone in Northern Tibet[J].Quaternary Sciences(inChinese),2006,26(6):1012-1020.
[9]郭增建,秦保燕,徐文耀,等.震源孕育模式的初步讨论[J].地球物理学报,1973,16(1):43-48.Guo Z J,Qin B Y,Xu W Y,et al.Preliminary study onpattern of breeding earthquake foci[J].Geophysics(inChinese),1973,16(1):43-48.
[10]Moinar P.The geologic history and structure of the Himaiaya[J].American Scientist,1986,74(2):144-154.
[11]屠泓为,都昌庭,万秀红,等.周边大地震对中国大陆7级以上地震的指示作用及统计分析[J].地球物理学进展,2011,26(3):829-835.Tu H W,Du C T,Wan X H,et al.Statistical and analysisthe instruction of surrounding large earthquake to Chinamainland Ms≥7.0[J].Progress in Geophysics(in Chinese),2011,26(3):829-835.
[12]程海旭,吴开统,庄灿涛.断层滑动速率、地震重复时间和平均应力降[J].地球物理学进展,1996,11(1):75-87.Cheng H X,Wu K T,Zuang C T.Fault slip rate,earthquake recurrence intervals and average stress drop[J].Progress in Geophysics(in Chinese),1996,11(1):75-87.
[13]袁道阳,雷中生,何文贵,等.1738年青海玉树地震考证及其与2010年玉树7.1级地震关系探讨[J].地球物理学进展,2011,26(6):1950-1958.Yuan D Y,Lei Z S,He W G,et al.Textual research ofYushu earthquake in 1738 A.D.in Qinghai Province anddiscussion their relationship with Yushu earthquake Ms 7.1in 2010[J].Progress in Geophysics(in Chinese),2011,26(6):1950-1958.
[2]谢毓寿,蔡美彪.中国地震历史资料汇编[M].北京:科学出版社,1986.XIE Y S,Cai M B.Annals of Historial Earthquake Materialsin China[M](in Chinese).Beijing:Science Press,1986.
[3]李春峰,贺群禄,赵国光.东昆仑活动断裂带东段古地震活动特征[J].地震学报,2005,27(1):60-67.Li C F,He Q L,Zhao G G.Paleo-earthquake Studies on TheEastern Section of the Kunlun Fault[J].Acta SeismologicaSinica(in Chinese),2005,27(1):60-67.
[4]胡道功,叶培盛,吴芳,等.东昆仑断裂带西大滩段晚第四纪古地震历史[J].第四纪研究,2008,28(2):214-221.Hu D G,Ye P S,Wu F,et al.Late quaternary seismichistory on the Xidatan segment of East Kunlun fault zone innorthern Tibet[J].Quaternary Sciences(in Chinese),2008,28(2):214-221.
[5]曾秋生.东昆仑断裂带的古地震研究[J].高原地震,1992,4(2):10-18.Zeng Q S.A study on paleoearthquakes in Eastern Kunlunfault zone[J].Earthquake Research in Plateau(in Chinese),1992,4(2):10-18.
[6]李陈侠.东昆仑断裂带东段(玛沁-玛曲)晚第四纪长期滑动习性研究[J].国际地震动态,2010,(3):36-38.Li C X.The long-term faulting behavior of the EasternSegment(Maqin-Maqu)of the East Kunlun fault since the latequaternary[J].Recent Development of World(in Chinese),2010,(3):36-38.
[7]胡道功,吴中海,吴珍汉,等.东昆仑断裂带库赛湖段晚第四纪古地震研究[J].第四纪研究,2007,27(1):27-34.Hu D G,Wu Z H,Wu Z H,et al.Late quaternary seismichistory on the Xidatan segment of east Kunlun fault zone inNorthern Tibet[J].Quaternary Sciences(in Chinese),2007,27(1):27-34.
[8]胡道功,叶培盛,吴珍汉,等.东昆仑断裂带西大滩段全新世古地震研究[J].第四纪研究,2006,26(6):1012-1020.Hu D G,Ye P S,Wu Z H,et al.Research on Holocenepaleoearthquakes on the Xidatan segment of the East Kunlunfault zone in Northern Tibet[J].Quaternary Sciences(inChinese),2006,26(6):1012-1020.
[9]郭增建,秦保燕,徐文耀,等.震源孕育模式的初步讨论[J].地球物理学报,1973,16(1):43-48.Guo Z J,Qin B Y,Xu W Y,et al.Preliminary study onpattern of breeding earthquake foci[J].Geophysics(inChinese),1973,16(1):43-48.
[10]Moinar P.The geologic history and structure of the Himaiaya[J].American Scientist,1986,74(2):144-154.
[11]屠泓为,都昌庭,万秀红,等.周边大地震对中国大陆7级以上地震的指示作用及统计分析[J].地球物理学进展,2011,26(3):829-835.Tu H W,Du C T,Wan X H,et al.Statistical and analysisthe instruction of surrounding large earthquake to Chinamainland Ms≥7.0[J].Progress in Geophysics(in Chinese),2011,26(3):829-835.
[12]程海旭,吴开统,庄灿涛.断层滑动速率、地震重复时间和平均应力降[J].地球物理学进展,1996,11(1):75-87.Cheng H X,Wu K T,Zuang C T.Fault slip rate,earthquake recurrence intervals and average stress drop[J].Progress in Geophysics(in Chinese),1996,11(1):75-87.
[13]袁道阳,雷中生,何文贵,等.1738年青海玉树地震考证及其与2010年玉树7.1级地震关系探讨[J].地球物理学进展,2011,26(6):1950-1958.Yuan D Y,Lei Z S,He W G,et al.Textual research ofYushu earthquake in 1738 A.D.in Qinghai Province anddiscussion their relationship with Yushu earthquake Ms 7.1in 2010[J].Progress in Geophysics(in Chinese),2011,26(6):1950-1958.
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