简析中国大陆地震活动与余震活动特点
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摘要
简要介绍了中国大陆地震活动的特点,显示中国大陆强震活动主要在包括南北地震带在内的中国西部地区,尤以青藏高原内部的地震活动最强.近年来7级以上大地震更多集中在巴颜喀喇地块边界附近.2014年5级以上地震主要分布在中国西部地区,南北地震带南段的川滇境内6级以上地震频发.余震活动及地震序列的分析显示,对于不同震型特点的强震序列,其地震序列的衰减特性和活动性参数具有不同特点.
This paper simply introduced the characteristics of earthquake activities in Chinese mainland. Strong earthquakes are mainly in west part of China,including North-South seismic belt,most frequent within Tibetan plateau. Recently large earthquakes magnitudes larger than 7 occurred mostly around boundary of Bayan Har block.In 2014,earthquakes magnitudes larger than 5 were mainly in west part of China. Strong earthquakes,magnitudes6 or larger,frequently occurred in south part of North-South seismic belt,within Scihuan and Yunnan. Analysis of aftershocks and earthquake sequences suggests that sequences of strong earthquakes of different types show different characteristics of attenuation and parameters of seismicity.
引文
[1]邓启东.关于四川汶川8.0级地震的思考[J].地震地质,2008,30(4):811-827.
    [2]赵博,石玉涛,高原.汶川Ms8.0地震及余震序列重新定位[J].地震,2011,31(2):1-10.
    [3]徐锡伟,闻学泽,叶建青,等.汶川Ms8.0地震地表破裂带及其发震构造[J].地震地质,2008,30(3):597-629.
    [4]薛艳,梅世蓉.唐山大震前一般震群与前兆震群时空演化特征研究[J].地震,1999,19(2):184-189.
    [5]GAO Y,WU Z-L,LIU Z,ZHOU H-L.Seismic source characteristics of nine strong earthquakes from 1988 to 1990 and earthquake activity since1970 in the Sichuan-Qinghai-Xizang(Tibet)zone of China[J].Pure Appl Geophys,2000,157(9):1423-1443.
    [6]高原,吴忠良,周蕙兰.四川地区1989年系列中强地震的震源破裂研究[J].地震学报,1998,20(1):12-17.
    [7]高原,周蕙兰,马延路.川滇地区地震活动单键群分析[J].中国地震,2000,16(1):86-91.
    [8]张国民,马宏生,王辉,等.中国大陆活动地块与强震活动关系[J].中国科学D辑:地球科学,2004,34(7):591-599.
    [9]张培震,邓启东,张国民,等.中国大陆的强震活动与活动地块[J].中国科学D辑:地球科学,2003,33(增刊):12-20.
    [10]张勇,冯万鹏,许力生,等.2008年汶川大地震的时空破裂过程[J].中国科学D辑:地球科学,2008,38(10):1186-1194.

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