强震群活动构造环境比较研究
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摘要
将1997-1998年新疆伽师6.0～6.6级强震群与国内外14例5.1～8.7级强震群的活动构造环境比较研究后发现,强震群持时25min～3a,强震群区的地震活动多具重复性,发震构造多为刚性地块共轭隐伏破裂。强震群为板内浅源地震。
The Jiashi region is located at a slope between the Kashgar depression and Bachu uplift in the northwestern part of the Tarim Basin,the value of gravity is relatively low(-240~-280 10-5m/s2) in the Kashgar depression,but it is relatively high(-100 10-5m/s2) in the Bachu uplift,and the strong earthquake swarms(Ms=6.0~6.6) in the Jiashi region occurred during the period from 1997 to 1998.In this paper,a comparative study on the active tectonic environment in the Jiashi region,Xinjiang,is carried out,and that of other 14 strong earthquake swarms(Ms=5.1~8.7) at home and abroad is reviewed.It is found that the duration of strong earthquake swarms varies in a range from 25 minutes and 3 years,the strong earthquake swarms can repeatedly occur in the same area where there are the conjugated and recessive fractures in rigid blocks,and all the strong shock series are the intra-plate shallow-hypocenter earthquakes.
The Jiashi region is located at a slope between the Kashgar depression and Bachu uplift in the northwestern part of the Tarim Basin,the value of gravity is relatively low(-240~-280 10-5m/s2) in the Kashgar depression,but it is relatively high(-100 10-5m/s2) in the Bachu uplift,and the strong earthquake swarms(Ms=6.0~6.6) in the Jiashi region occurred during the period from 1997 to 1998.In this paper,a comparative study on the active tectonic environment in the Jiashi region,Xinjiang,is carried out,and that of other 14 strong earthquake swarms(Ms=5.1~8.7) at home and abroad is reviewed.It is found that the duration of strong earthquake swarms varies in a range from 25 minutes and 3 years,the strong earthquake swarms can repeatedly occur in the same area where there are the conjugated and recessive fractures in rigid blocks,and all the strong shock series are the intra-plate shallow-hypocenter earthquakes.
引文
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[18]Arsovsui M.Geological condition of strong earthquake occurrence inSFR of Yugoslavia[A].A collection of papers of internationalsymposium on continental seismicity and earthquake prediction[C].Beijing:Seismological Press,1984.156-168.[阿索夫斯基M.南斯拉夫社会主义联邦共和国发生强震的地质条件[A].大陆地震活动和地震预报国际学术讨论会论文集[C].北京:地震出版社,1984.100-108.]
[19]Papazachos B C,Papadimitriou E E.Seismicity regularities in Greeceas premonitory patterns[A].A collection of papers of internationalsymposium on continental seismicity and earthquake prediction[C].Beijing:Seismological Press,1984.191-197.[帕帕塞科斯BC,帕帕底米特里欧E E.希腊地震活动规律性及前兆图像[A].大陆地震活动和地震预报国际学术讨论会论文集[C].北京:地震出版社,1984.127-132.]
[20]Zhang Peizhen,Slemmons D B,Mao Fengying.Geometric pattern,rupture termination and fault segmentation of the DixieValley-Pleasant Valley active normal system,Nevada,USA[J].Journal of Structural Geology,1991,13(2):165-176.]
[21]Seismological Bureau of Hebei Province.Xingtai Earthquake in 1966[M].Beijing:Seismological Press,1986.90.[河北省地震局.一九六六年邢台地震[M].北京:地震出版社,1986.90.]
[22]Li Ping.Mabian Earthquake in Sichuan—An example of seismogenictectonic of swarm pattern[A].Seismo-geological survey materialcompilation of strong seismological region in Sichuan andYunnan[M].Beijing:Seismological Press,1979.132-143.[李王平.四川马边地震—一个震群型发震构造的实例[A].川滇强震区地震地质调查汇编[M].北京:地震出版社,1979.132-143.]
[23]Seismological Bureau of Sichuan Province.Songpan earthquake in1976[M].Beijing:Sesmological Press,1979.[四川省地震局.一九七六年松潘地震[M].北京:地震出版社,1979.]
[24]Zhang Guomin,Zhu Lingren,Song Xiaodong,Li Zhixing,YangMaling,Su Naigin,Chen Xuezhong.Predictions of the 1977 strongearthquakes in Jiashi,Xinjiang,China[J].Bulletin of the Seismologicalof America,1999,89(5):1171-1183.]
[2]Tang Liangjie.The evolution and tectonic pattern in TarimBasin[M].Beijing:Geological Press,1996.18.[汤良杰.塔里木盆地演化和构造样式[M].北京:地质出版社,1996.18.]
[3]Wang Xiaoqiang,Wang Qi,Chen Ruizhong,et al.GPS observationin Jiashi and its vicinity and the preliminary analysis on the observeddata[J].Inland Earthquake,2000,14(3):200-206.[王晓强,王琪,程瑞忠,等.伽师及邻近地区GPS地壳形变监测及初步分析[J].内陆地震,2000,14(3):200-206.]
[4]Zhu Lingren,Su Naiqing,Yang Maling.Activity of the 1997 Jiashistrong swarm in Xinjiang and three successful impending predictionsfor it[J].Earthquake Research in China,1998,14(2):101-114.[朱令人,苏乃秦,杨马陵.1997年新疆伽师强震群及三次成功的临震预报[J].中国地震,1998,14(2):101-114.]
[5]Zhou Shiyong,Xu Zhonghuai,Han Jing,et al.Orientation methodanalysis of main earthquake and high precision orientation of theXinjiang Jiashi strong earthquake swarm in 1997[J].ActaSeismologica Sinica,1999,21(3):258-265.[周仕勇,许忠淮,韩京,等.主地震定位法分析以及1997年新疆伽师强震群高精度定位[J].地震学报,1999,21(3):258-265]
[6]Xu Yi,Liu Futian,Liu Jianhua,et al.Crustal structure and tectonicenvironment of strong earthquakes in the Tianshan EarthquakeBelt[J].Acta Geophysica Sinica,2000m43(2)184-193.[胥颐,刘福田,刘建华,等,天山地震带的地壳结构与强震构造环境,地球物理学报,2000,43(2):184-193.]
[7]Luo Fuzhong,Zhang Yufeng,Lu Guilin,et al.Intensity distributionand disaster characteristics of 4 earthquakes in the magnitude rage of5.0 to 5.9 in Jiashi,Xinjiang on April 6,11 and 16,1997[J].InlandEarthquake,1997,11(4):399-404.[罗福忠,张云峰,吕桂林,等.1997年4月6日、11日、16日新疆伽师4次6.3～6.6级地震烈度分布及震害特征[J].内陆地震,1997,11(4):399-404.]
[8]Seismic Hazard Defense Department of State Seismological Bureauof China.Catalogue of heavy earthquake disasters in the world[M].Beijing:Seismologcal Press,1996.[国家地震局震害防御司.全球重大灾害性地震目录[M].北京:地震出版社,1996.]
[9]Seismological Bureau of Xinjiang Uygur Autonomous Region.TheSeismological material Compilation of Xinjiang Uygur AutonomousRegion[M].Beijing:Seismological Press,1985.84,249.[新疆维吾尔自治区地震局.新疆维吾尔自治区地震资料汇编[M].北京:地震出版社,1985.84,249.]
[10]Seismological Bureau of Sichuan Province.The strong earthquakesequence in Batang,Sichuan in 1989[M].Beijing:SeismologicalPress,1994.[四川省地震局.1989年四川巴塘强震群[M].北京:地震出版社,1994.]
[11]Cheng Lide,Zhao Weicheng.The Longling earthquake in1976[M].Beijing:Seismological Press,1979.[陈立德,赵维城.1976年龙陵地震[M].北京:地震出版社,1979.]
[12]ΑкадемияНаукРеспубликиУзбекистанИнститутСейсмологий.ПрогнозСейсмическойОпаностиУзбекистана,Сейсмониров-аниеиДолгосрочныйПрогнозСейсмическойОбстановки,Том.1,Ташкент,Издательство《Фан》ΑкадемияНаукРеспубликиУзбекистан,1994.158.
[13]ΜавляновΓΑ.Газлийскиеземлетрясения1976и1984г.г.,Ташкент,Изв.<<Фан>>.УзбекскойССР.1986.[加藤石贞一,1989,地震と活断层の科学,东京:朝仓书店.]
[14]Institute of Geology,State Seismological Bureau.Instruction forseismotectonic map of Eurasia with scale 1∶8 000 000[M].Beijing:Map Press,1981.[国家地震局地质研究所.1∶8 000 000亚欧地震构造图及说明书[M].北京:地图出版社,1981.]
[15]Bonafede M.Explanation of landform change slowly before Fulfill:Earthquake in Italy in 1976[J].IUGG XⅧGeneral Assem.IASPEL,1983,138.[Bonafede M.白云虹译.对1976年意大利弗留利地震前缓慢地形变的解释[J].地震地质译丛,1984,6(2):64.]
[16]Russ D P.Seimotectonics of the New Madrid seismic zone,centralUS—Implications for intraplate earthquakes[A].A collection ofpapers of international symposium on continental seismicity andearthquake prediction[C].Beijing:Seismological Press,1984.312-324.[拉斯D P.新马德里地震带的地震构造对美国中部板内地震的含义[A].大陆地震活动和地震预报国际学术讨论会论文集[C].北京:地震出版社,1984.182-192.]
[17]Kofuman J L,Fenghak C A.Seismological history of US[M].Beijing:Seismological Press,1988.177.[科夫曼J L,冯哈克C A,李存悌,王洪珍译.美国地震志[M].北京:地震出版社,1988.177.]
[18]Arsovsui M.Geological condition of strong earthquake occurrence inSFR of Yugoslavia[A].A collection of papers of internationalsymposium on continental seismicity and earthquake prediction[C].Beijing:Seismological Press,1984.156-168.[阿索夫斯基M.南斯拉夫社会主义联邦共和国发生强震的地质条件[A].大陆地震活动和地震预报国际学术讨论会论文集[C].北京:地震出版社,1984.100-108.]
[19]Papazachos B C,Papadimitriou E E.Seismicity regularities in Greeceas premonitory patterns[A].A collection of papers of internationalsymposium on continental seismicity and earthquake prediction[C].Beijing:Seismological Press,1984.191-197.[帕帕塞科斯BC,帕帕底米特里欧E E.希腊地震活动规律性及前兆图像[A].大陆地震活动和地震预报国际学术讨论会论文集[C].北京:地震出版社,1984.127-132.]
[20]Zhang Peizhen,Slemmons D B,Mao Fengying.Geometric pattern,rupture termination and fault segmentation of the DixieValley-Pleasant Valley active normal system,Nevada,USA[J].Journal of Structural Geology,1991,13(2):165-176.]
[21]Seismological Bureau of Hebei Province.Xingtai Earthquake in 1966[M].Beijing:Seismological Press,1986.90.[河北省地震局.一九六六年邢台地震[M].北京:地震出版社,1986.90.]
[22]Li Ping.Mabian Earthquake in Sichuan—An example of seismogenictectonic of swarm pattern[A].Seismo-geological survey materialcompilation of strong seismological region in Sichuan andYunnan[M].Beijing:Seismological Press,1979.132-143.[李王平.四川马边地震—一个震群型发震构造的实例[A].川滇强震区地震地质调查汇编[M].北京:地震出版社,1979.132-143.]
[23]Seismological Bureau of Sichuan Province.Songpan earthquake in1976[M].Beijing:Sesmological Press,1979.[四川省地震局.一九七六年松潘地震[M].北京:地震出版社,1979.]
[24]Zhang Guomin,Zhu Lingren,Song Xiaodong,Li Zhixing,YangMaling,Su Naigin,Chen Xuezhong.Predictions of the 1977 strongearthquakes in Jiashi,Xinjiang,China[J].Bulletin of the Seismologicalof America,1999,89(5):1171-1183.]
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