1900年以来我国西南地区强余震统计特征
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摘要
本文通过对西南地区1900年以来5级以上地震发生1个月内强余震资料的统计,得到了主震震级与余震震级、时间间隔与震中距之间的经验关系和统计规律。同时,以汶川主余震为例,进行了对比检验。统计结果表明,本文的统计结果是比较可靠的,对今后西南地区余震的预测具有一定的参考价值。
Based on analysis of strong aftershocks happened after one month of MS≥5.0 earthquakes occurred since 1900 in Southwestern China, We obtain the experiential formula and statistical relationships between the magnitude of main shocks and magnitude, time and epicenter distance of the aftershocks. Through comparison with the measurement of main shock and aftershocks from Wenchuan Earthquake, we found that our statistical relationships are dependable, and are also valuable to forecast of aftershocks in Southwest China in the future.
Based on analysis of strong aftershocks happened after one month of MS≥5.0 earthquakes occurred since 1900 in Southwestern China, We obtain the experiential formula and statistical relationships between the magnitude of main shocks and magnitude, time and epicenter distance of the aftershocks. Through comparison with the measurement of main shock and aftershocks from Wenchuan Earthquake, we found that our statistical relationships are dependable, and are also valuable to forecast of aftershocks in Southwest China in the future.
引文
1任雪梅,2005.西北地区东部5级以上地震余震删除研究.中国地震局兰州地震研究所硕士学位论文.
黄玮琼,李文香,曹学锋,1994.中国大陆地震资料完整性研究之二.地震学报,16(4):423-432.
蒋海昆,曲延军,李永莉等,2006.中国大陆中强地震余震序列的部分统计特征.地球物理学报,49(4):1110-1117.
蒋海昆,郑建常,吴琼等,2007.中国大陆中强以上地震余震分布尺度的统计特征.地震学报,29(2):151-164.
刘正荣,1984.根据地震频度衰减预报地震的工作细则.地震,4(1):35-37.
陆远忠,吴培稚,沈建文,1983a.直接余震和间接余震.地球物理学报,26(4):355-365.
陆远忠,朱传镇等编,1983b.地震预报方法使用化研究文集:地震学专辑.北京:学术期刊出版社.
吕晓健,高孟潭,高战武等,2007.强余震和主震地面运动分布比较研究.地震学报,29(3):295-301.
吕晓健,高孟潭,高战武,米素婷,2008.中国西南地区强余震概率模型研究.地震学报,30(4):397-404.
沈建文,邱瑛,赵志贺,1990.震级-破裂关系与断层破裂模型.地球物理学报,33(2):242-248.
吴开统,张智,焦远碧等,1989.用b值横截距法预报强余震震级的方法研究.见:许绍燮,路远忠,朱传振等编,地震预报方法实用化研究文集:地震学专辑.北京:学术期刊出版社,183-193.
吴开统,焦远碧,吕培苓等,1990.地震序列概论.北京:北京大学出版社,97-118.
周蕙兰,房桂荣,章爱娣等,1982.余震序列的持续时间.地震学报,4(1):45-54.
Chapman M.C.,Powell C.A.,Vlahovic G.et al.,1997.A statistical analysis of eart hquake focal mechanisms and epicenter locations in t he eastern Tennessee seismic zone.Bull Seism.Soc.Amer.,87(6):1522-1536.
Gardner J.K.,Knopoff L.,1974.Is the sequence of earthquakes in Southern California,with aftershocks removed,Poissonian?Bull.Seism.Soc.Am.,64:1363-1367.
Kagan Y.Y.,Knopoff L.,1972.Statistical search for non-random features of the seismicity of strong earthquakes.Phys.Earth.Planet.Inter.,12:291-318.
Knopoff L.,1964.Statistics of earthquakes in Souehern California.Bull.Seism.Soc.Am.,54:1871-1873.
Lutz T.M.,1986.An analysis of the orientation of large scale crustal structures:A statistical approach based on areal distributions of pointlike features.J.Geophys Res.,91(B1):421-434.
Lutz T.M.,Gutmann J.T.,1995.An improved met hod for determining and characterizing alignments of pointlike features and its implications for the Pinacate volcanic field,Sonora,Mexico.J.Geophys Res.,100(B9):17659-17670.
Reasenberg P.A.,Jones L.M.,1989.Earthquake hazard after a mainshock in California.Science,243:1173-1176.
Ustu T.A.,1961.Statistical study on the occurrence of aftershocks.Geophys Mag.,30:521-605.
黄玮琼,李文香,曹学锋,1994.中国大陆地震资料完整性研究之二.地震学报,16(4):423-432.
蒋海昆,曲延军,李永莉等,2006.中国大陆中强地震余震序列的部分统计特征.地球物理学报,49(4):1110-1117.
蒋海昆,郑建常,吴琼等,2007.中国大陆中强以上地震余震分布尺度的统计特征.地震学报,29(2):151-164.
刘正荣,1984.根据地震频度衰减预报地震的工作细则.地震,4(1):35-37.
陆远忠,吴培稚,沈建文,1983a.直接余震和间接余震.地球物理学报,26(4):355-365.
陆远忠,朱传镇等编,1983b.地震预报方法使用化研究文集:地震学专辑.北京:学术期刊出版社.
吕晓健,高孟潭,高战武等,2007.强余震和主震地面运动分布比较研究.地震学报,29(3):295-301.
吕晓健,高孟潭,高战武,米素婷,2008.中国西南地区强余震概率模型研究.地震学报,30(4):397-404.
沈建文,邱瑛,赵志贺,1990.震级-破裂关系与断层破裂模型.地球物理学报,33(2):242-248.
吴开统,张智,焦远碧等,1989.用b值横截距法预报强余震震级的方法研究.见:许绍燮,路远忠,朱传振等编,地震预报方法实用化研究文集:地震学专辑.北京:学术期刊出版社,183-193.
吴开统,焦远碧,吕培苓等,1990.地震序列概论.北京:北京大学出版社,97-118.
周蕙兰,房桂荣,章爱娣等,1982.余震序列的持续时间.地震学报,4(1):45-54.
Chapman M.C.,Powell C.A.,Vlahovic G.et al.,1997.A statistical analysis of eart hquake focal mechanisms and epicenter locations in t he eastern Tennessee seismic zone.Bull Seism.Soc.Amer.,87(6):1522-1536.
Gardner J.K.,Knopoff L.,1974.Is the sequence of earthquakes in Southern California,with aftershocks removed,Poissonian?Bull.Seism.Soc.Am.,64:1363-1367.
Kagan Y.Y.,Knopoff L.,1972.Statistical search for non-random features of the seismicity of strong earthquakes.Phys.Earth.Planet.Inter.,12:291-318.
Knopoff L.,1964.Statistics of earthquakes in Souehern California.Bull.Seism.Soc.Am.,54:1871-1873.
Lutz T.M.,1986.An analysis of the orientation of large scale crustal structures:A statistical approach based on areal distributions of pointlike features.J.Geophys Res.,91(B1):421-434.
Lutz T.M.,Gutmann J.T.,1995.An improved met hod for determining and characterizing alignments of pointlike features and its implications for the Pinacate volcanic field,Sonora,Mexico.J.Geophys Res.,100(B9):17659-17670.
Reasenberg P.A.,Jones L.M.,1989.Earthquake hazard after a mainshock in California.Science,243:1173-1176.
Ustu T.A.,1961.Statistical study on the occurrence of aftershocks.Geophys Mag.,30:521-605.
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