青藏高原北部地区小震目录完整性分析
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摘要
将青藏高原北部地区划分为祁连山地震带、甘东南地区、库玛地震带和柴达木—共和地块4个研究区域,基于古登堡—里希科特的震级—频度关系和震级—序号图像法对每个区域1970年以来的小震目录进行完整性分析,分别确定不同区域、不同时段的完整小震目录的震级下限,其结论可供青藏高原北部地区地震活动性分析和地震危险性评价研究时参考。
The north region of Qinghai-Xizang plateau is divided into four studied areas which are Qilianshan earthquake zone,southeast region of Gansu province,Kusaihu-Maqu earthquake zone,Caidamu-Gonghe block,and minimum magnitude of completeness in earthquake catalogs in each area since 1970 are analyzed by Gutenberg-Richter magnitude-frequency relation and magnitude-Ordinal pattern,and the magnitude lower limit is determined in different areas and in different periods.This results may be for seismicity and earthquake risk evaluation reference in the studied areas.
The north region of Qinghai-Xizang plateau is divided into four studied areas which are Qilianshan earthquake zone,southeast region of Gansu province,Kusaihu-Maqu earthquake zone,Caidamu-Gonghe block,and minimum magnitude of completeness in earthquake catalogs in each area since 1970 are analyzed by Gutenberg-Richter magnitude-frequency relation and magnitude-Ordinal pattern,and the magnitude lower limit is determined in different areas and in different periods.This results may be for seismicity and earthquake risk evaluation reference in the studied areas.
引文
[1]冉勇康,张培震,陈立春,等.河套断陷带大青山山前断裂晚第四纪古地震完整性研究[J].地学前缘,2003,10(特刊):207-216.
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[5]吴忠良.鉴别地震活动周期性和随机性的广义Rydlek-Sacks检验[J].地震学报,1999,21(5):487-494.
[6]梅世蓉,冯德益,张国民,等.中国地震预报概论[M].北京:地震出版社,1993:10-85.
[7]杨立明,车时.大震前后中强地震活动格局变化及其预测意义初步研究[J].西北地震学报,2004,26(3):212-217.
[8]马宏生,刘杰,张国民,等.用应变积累释放模型研究中国大陆地块分区地震活动[J].地震学报,2002,24(6):569-578.
[9]陈学忠,郭祥云,李艳娥.首都圈地区小震活动月频次分布特征[J].地震,2007,27(4):36-42.
[10]Stefan Wiemer,Max Wyss.Minimum Magnitude ofCompleteness in Earthquake Catalogs:Examples fromAlaska,the Western United States,and Japan[J].Bulletin of the Seismological Society of America,2000,90(4):859-869.
[11]Jochen Woessner,Stefan Wiemer.Assessing theQuality of Earthquake Catalogues:Estimating theMagnitude of Completeness and Its Uncertainty[J].Bulletin of the Seismological Society of America,2005,95(2):684-698.
[12]Daniel Amorese.Applying a Change-Point Detec-tion Method on Frequency-Magnitude Distributions[J].Bulletin of the Seismological Society of Ameri-ca,2007,97(5):1 742-1 749.
[2]何宗海.中国南北地震带中北部最小完整性震级的探讨[J].西北大学学报(自然科学版),1994,24(5):411-416.
[3]刘杰,陈棋福,陈颙.华北地区地震目录完全性分析[J].地震,1996,16(1):59-67.
[4]苏有锦,李永莉,李忠华,等.川滇地区区域地震目录完整性最小震级分析[J].地震研究,2003,26(增刊):10-16.
[5]吴忠良.鉴别地震活动周期性和随机性的广义Rydlek-Sacks检验[J].地震学报,1999,21(5):487-494.
[6]梅世蓉,冯德益,张国民,等.中国地震预报概论[M].北京:地震出版社,1993:10-85.
[7]杨立明,车时.大震前后中强地震活动格局变化及其预测意义初步研究[J].西北地震学报,2004,26(3):212-217.
[8]马宏生,刘杰,张国民,等.用应变积累释放模型研究中国大陆地块分区地震活动[J].地震学报,2002,24(6):569-578.
[9]陈学忠,郭祥云,李艳娥.首都圈地区小震活动月频次分布特征[J].地震,2007,27(4):36-42.
[10]Stefan Wiemer,Max Wyss.Minimum Magnitude ofCompleteness in Earthquake Catalogs:Examples fromAlaska,the Western United States,and Japan[J].Bulletin of the Seismological Society of America,2000,90(4):859-869.
[11]Jochen Woessner,Stefan Wiemer.Assessing theQuality of Earthquake Catalogues:Estimating theMagnitude of Completeness and Its Uncertainty[J].Bulletin of the Seismological Society of America,2005,95(2):684-698.
[12]Daniel Amorese.Applying a Change-Point Detec-tion Method on Frequency-Magnitude Distributions[J].Bulletin of the Seismological Society of Ameri-ca,2007,97(5):1 742-1 749.
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