东亚大陆大三角地震区的强震成组活动迁移图像分析
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摘要
本文分析了1900—2008年东亚大陆大三角地震区7.5级以上大地震的地震活动时空图像,认为:①1902—1974年东亚大陆大三角地震区的7.5级以上浅源地震成组活动的主体地区,沿着大三角地震区的边界顺时针迁移,到了1997—2001年开始转移到大三角地震区的内部;②对于整个大三角地震区而言,近代7.5级以上浅源地震的震级(M)-时间(t)过程表明,地震活动是活跃和平静交替出现的幕式过程;③大三角地震区近代7.5级以上浅源地震的时空迁移图像的力学机制,可能是地震区内地震断层应力转移和耦合的相互作用。
This paper analyses the time-space seismicity pattern(MS≥7.5) in the great seismic triangle area of eastern Asia continent from 1902 to 2008.The results show that: ① during a period from 1902 to 1974,the main areas of earthquake grouping migration was along the boundary of the great seismic triangle area in a clock-wise direction,and after that time,earthquake activity entered inside the great seismic triangle area;② for the whole seismic triangle area,earthquake process with time indicates an episodic characteristics of alternative activity and quiescence;③ the migration pattern of grouping seismic activity in the seismic triangle area might be related to a mechanic mechanism,with mutual effects among seismic faults,stress transfer and coupling.
This paper analyses the time-space seismicity pattern(MS≥7.5) in the great seismic triangle area of eastern Asia continent from 1902 to 2008.The results show that: ① during a period from 1902 to 1974,the main areas of earthquake grouping migration was along the boundary of the great seismic triangle area in a clock-wise direction,and after that time,earthquake activity entered inside the great seismic triangle area;② for the whole seismic triangle area,earthquake process with time indicates an episodic characteristics of alternative activity and quiescence;③ the migration pattern of grouping seismic activity in the seismic triangle area might be related to a mechanic mechanism,with mutual effects among seismic faults,stress transfer and coupling.
引文
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[3]许忠淮.东亚地区现今构造应力图的编制[J].地震学报,2001,23(5):492-501.
[4]马宗晋,傅征祥,张郢珍,等.1966—1976年中国九大地震[M].北京:地震出版社,1982.
[5]傅征祥,金学申,邵辉成,等.中国大陆强地震成组活动迁移及其机理分析[J].地震,2005,25(4):66-74.
[6]国家地震局震害防御司编.中国历史强震目录(公元前23世纪—公元1911年,MS≥4.7)[M].北京:地震出版社,1995.
[7]中国地震局震害防御司编.中国近代地震目录(公元1912—1990年,MS≥4.7)[M].北京:中国科学技术出版社,1999.
[8]Engdahl E R,Villasenor A.Global seismicity:1900—1999,International handbook of earthquakeand engineering seismology[A].edited by W H Lee,Kanamori H,Jennings P C,Kisslinger C,etal.Color Plate 15,Academic Press[C].Amsterdam Boston New York Oxford Paris San Diego SanFrancisco Singapore Sydney Tokyo,2002.665-690.
[9]张培震,邓起东,张国民,等.中国大陆的强震活动与活动地块[J].中国科学,2003,33(增刊):12-20.
[10]Kagan Y Y,Jackson D D.Long-term earthquake clustering[J].Geophy J Int,1991,104:117-133.
[11]张国民,耿鲁明,石耀霖.中国大陆强震轮回活动的计算机模拟[J].中国地震,1993,9(1):20-32.
[12]耿鲁明,石耀霖,张国民.地震活动的简化模型研究[J].地震,1993,13(1):68-75.
①中国地震局监测预报司预报管理处,中国强地震目录(公元前23世纪—公元2000年,MS≥4.7),2005。
[2]马宗晋,张德成.板块构造与地震[A].李春昱等主编.板块构造基本问题[C].北京:地震出版社,1986.363-391.
[3]许忠淮.东亚地区现今构造应力图的编制[J].地震学报,2001,23(5):492-501.
[4]马宗晋,傅征祥,张郢珍,等.1966—1976年中国九大地震[M].北京:地震出版社,1982.
[5]傅征祥,金学申,邵辉成,等.中国大陆强地震成组活动迁移及其机理分析[J].地震,2005,25(4):66-74.
[6]国家地震局震害防御司编.中国历史强震目录(公元前23世纪—公元1911年,MS≥4.7)[M].北京:地震出版社,1995.
[7]中国地震局震害防御司编.中国近代地震目录(公元1912—1990年,MS≥4.7)[M].北京:中国科学技术出版社,1999.
[8]Engdahl E R,Villasenor A.Global seismicity:1900—1999,International handbook of earthquakeand engineering seismology[A].edited by W H Lee,Kanamori H,Jennings P C,Kisslinger C,etal.Color Plate 15,Academic Press[C].Amsterdam Boston New York Oxford Paris San Diego SanFrancisco Singapore Sydney Tokyo,2002.665-690.
[9]张培震,邓起东,张国民,等.中国大陆的强震活动与活动地块[J].中国科学,2003,33(增刊):12-20.
[10]Kagan Y Y,Jackson D D.Long-term earthquake clustering[J].Geophy J Int,1991,104:117-133.
[11]张国民,耿鲁明,石耀霖.中国大陆强震轮回活动的计算机模拟[J].中国地震,1993,9(1):20-32.
[12]耿鲁明,石耀霖,张国民.地震活动的简化模型研究[J].地震,1993,13(1):68-75.
①中国地震局监测预报司预报管理处,中国强地震目录(公元前23世纪—公元2000年,MS≥4.7),2005。
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