从地震活动参数估计鲜水河断裂带的近期活动
ESTIMATING RECENT ACTIVITIES OF THE XIANSHUIHE FAULT ZONE BY EARTHQUAKE ACTIVITY PARAMETERS
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摘要: 本文利用b,N,E等地震活动参数沿断裂带的时空扫描结果,估计了鲜水河断裂带1973——1982近十年的活动特征,初步总结了鉴别轻微滑动、弱粘滑、粘滑和闭锁等不同性质的断层活动段以及划分该断裂带短期活动阶段的地震活动参数综合指标。最后就该断裂带自1973年6月以来及1981年道孚6.9级地震前后,从地震活动参数反映的断裂活动性质变化等问题,进行了初步讨论。Abstract: In this paper, the recent activities of the Xianshuihe Fault Zone during the period from 1973 to 1982 have been estimated by both spatial scanning and temporal scanning of earthquake activity parameters such as b, N, Balong the fault zone. Some comprehensive indexes of the earthquake parameters for distinguishing different fault segments with variant active characters: light sliding, light stick sliding, stick sliding and locking, as well as for dividing different active stages of the fault zone into short period have been preliminarily summarized. Finally, the changes of activities of this fault zone reflected by earthquake activity parameters since June 1973, and before and after the Daofu Earthquake of magnitude 6.9 occurred in1981 have been preliminarily discussed as well.
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[1] 李全林、于渌 ,郝柏林、陈锦标编著,地震频度一震级关系的时空扫描,地震出版社,1980.
[2] 李全林,"b值"的物理意义和求法,地震1982,2: 46——47.
[3] 马鸿庆,大、中地震前b值的区域分布,地球物理学报,25,163——171,1982.
[4] 马鸿庆,华北地区几次大震前的b值异常变化,地球物理学报,21, 126——141,1978.
[5] Scholz, C, H ., The frequency——magnitude relation of microfracturing in rock and irs relation to earthquake, Bull. Seism, soc. Am 58, 399——415, 1968.
[6] Mogi, K Study of elastic shuoks caused by the fracture of heterogeneous materials and its relations to earthquake phenomena,Bulletin of Earthquake Research Institute University of Tokyo,40,125——173.1962.
[7] Mogi, K Earthquakes and fractures, Tectonophysics, 5, 35——55, 1967.
[8] 黄圣睦、刘本培、江在雄、黎定福, 四川炉霍虾沱地震断层群,地震地质,4,67——71,1982.
[9] 刘本培、李建中、李昌芝,1981年道孚6.9级地震的地壳形变,地壳形变与地震,1982,1: 63——71.
[10] 唐荣昌、钱洪、张文甫、张成贵、曹杨国、刘盛利,道孚6.9级地震的地质构造背景与发震构造条件分析,地震地质,6,33——40,1984.[1] 李全林、于渌 ,郝柏林、陈锦标编著,地震频度一震级关系的时空扫描,地震出版社,1980.
[2] 李全林,"b值"的物理意义和求法,地震1982,2: 46——47.
[3] 马鸿庆,大、中地震前b值的区域分布,地球物理学报,25,163——171,1982.
[4] 马鸿庆,华北地区几次大震前的b值异常变化,地球物理学报,21, 126——141,1978.
[5] Scholz, C, H ., The frequency——magnitude relation of microfracturing in rock and irs relation to earthquake, Bull. Seism, soc. Am 58, 399——415, 1968.
[6] Mogi, K Study of elastic shuoks caused by the fracture of heterogeneous materials and its relations to earthquake phenomena,Bulletin of Earthquake Research Institute University of Tokyo,40,125——173.1962.
[7] Mogi, K Earthquakes and fractures, Tectonophysics, 5, 35——55, 1967.
[8] 黄圣睦、刘本培、江在雄、黎定福, 四川炉霍虾沱地震断层群,地震地质,4,67——71,1982.
[9] 刘本培、李建中、李昌芝,1981年道孚6.9级地震的地壳形变,地壳形变与地震,1982,1: 63——71.
[10] 唐荣昌、钱洪、张文甫、张成贵、曹杨国、刘盛利,道孚6.9级地震的地质构造背景与发震构造条件分析,地震地质,6,33——40,1984.
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