广东地区近震M_L震级量规函数
|
摘要
收集了广东地震台网记录的地震资料,根据Richter提出的原始M_L震级定义,分别采用了频率域和时间域2种仿真技术将宽频带速度波形仿真为伍德-安德森地震仪波形,在仿真后的波形上自动量取地震水平向最大振幅,研究获得了广东地区近震M_L震级的量规函数。通过对各台站计算的M_L震级残差的统计分析,获得了广东地震台网44个台站的台站校正。对台站校正的Z检验结果表明,44个台站中有38个台站的台站校正明显不为0。新量规函数以及台站校正的应用,有效提高了广东地震台网测定M_L震级的精度,使M_L震级测定的离散程度降低约30%。
According to the local magnitude definition by Richter,we collected local earthquake data recorded by the Guangdong Digital Seismic Network and measured the maximal amplitude on simulated Wood-Anderson seismograms of the broadband seismograms,which were simulated in frequency and time domain respectively. Using these two kinds of data,two calibration functions of the local magnitude scale for Guangdong region have been obtained. The correction of the 44 seismic stations of the Guangdong Digital Seismic Network has been calculated by analyzing the M_L residuals for each station. Using a Z-test,we found that the correction of 38 stations was significantly different from 0. The application of the new local magnitude scale and station correction,the overall variance of the mean magnitude estimates have been reduced by 30%.
According to the local magnitude definition by Richter,we collected local earthquake data recorded by the Guangdong Digital Seismic Network and measured the maximal amplitude on simulated Wood-Anderson seismograms of the broadband seismograms,which were simulated in frequency and time domain respectively. Using these two kinds of data,two calibration functions of the local magnitude scale for Guangdong region have been obtained. The correction of the 44 seismic stations of the Guangdong Digital Seismic Network has been calculated by analyzing the M_L residuals for each station. Using a Z-test,we found that the correction of 38 stations was significantly different from 0. The application of the new local magnitude scale and station correction,the overall variance of the mean magnitude estimates have been reduced by 30%.
引文
陈继峰、尹欣欣、董宗明等,2013,甘肃地区近震震级的量规函数研究,中国地震,29(3),327-334。
陈培善、秦嘉政,1983,量规函数、台站方位、台基及不同测量方法对近震震级M_L的影响,地震学报,5(1),87-98。
樊星、包东健,1990,内蒙古地区M_L近震震级系统的初步研究,华北地震科学,8(1),38-46。
高国英、埃尼瓦尔,1987,新疆地区量规函数、台站校正值的分布计算,西北地震学报,9(1),103~107。
国家地震局,1978,地震台站观测规范(试行)北京:地震出版社。
李善邦,1981,中国地震,北京:地震出版社。
刘瑞丰、任克新、张立文等,2011,利用宽频带数字地震资料测定地震震级的方法研究,地震地磁观测与研究,32(3),1-8。
孟晓琴、梁向军、张玲等,2008,山西地震台网速报震级与量规函数的研究,山西地震,2,19-23。
项月文、曾文敬、罗丽等,2010江西数字地震台网近震震级偏差与量规函数关系的研究,华南地震,30(3),95-104。
薛志照,1992,近震震级M_L量规函数和台站校正值,华北地震,科学,10(1),60-65。
严尊国、师蓉梅,1983,地方性均匀震级系统量规函数的区域特征,地震地磁观测与研究,74(4),4-10。
严尊国、李普丽、薛军蓉,1992,中国近震震级量规函数研究,中国地震,8(4),76-91。
阎志德、任铁生、张亚玲,1989,甘、青、宁地区近震震级测定的改进及其起算函数的修正,西北地震学报,11(3),89-95。
袁卫红、戴佩新、杜江等,2012,大庆地震台网近震震级偏差分析与校正,地震地磁观测与研究,33(2),27-31。
赵明淳、毛国良、张从珍等,2005,河北遥测台网速报震级偏差与量规函数关系的研究,地震地磁观测与研究,26(5),87-94。
Alsaker A,Kvamme L B,Hansen R A,et al,1991,The M_L scale in Norway,Bull Seismol Soc Am,81,379-398.
Askari R,Ghods A,Sobouti F 2009,Calibration of an M_L scale in the Alborz region,Northern Iran,Bull Seismol Soc Am,99(1),268-276.
Bagh S Alhasan A,Tello S,2014,Local magnitude calibration of the Syrian national digital seismological network,Seis Res Lett 35(2),324-333.
Bakun,W H Joyner W B,1984,The M_L scale in central California,Bull Seismol Soc Am,74,1827-1843.
Bobbio A,Vassallo M,Festa G,2009,A local magnitude scale for southern Italy,Bull Seismol Soc Am,99(4),2461-2470.
Havskov J,Ottem(o|")ller L,2010,Routine earthquake analysis in earthquake seismology,with sample data,exercise and software,Chapter 6,Springer,ISBN 978-90-481-8696-9.
Hutton,L K,Boore D M,1987,The M_L scale in southern California,Bull Seismol Soc Am,77(6),2074-2094.
IASPEI,2011,Summary of magnitude working group recommendations on standard procedures for determining earthquake magnitudes from digital data[EB/OL],http//www.iasper.org/commissions/CSOI/Summary_WG-Recommendations_20110909.pdf.
Kanamori H,Maechling P,Hauksson E,1999,Continuous monitoring of ground-motion paramters,Bull Seismol Soc Am,89(1),311-316.
Keir D,Stuart G W,Jackson A,et al 2006,Local earthquake magnitude scale and seismicity rate for the Ethiopian Rift Bull Seismol Soc Am,96(6),2221-2230.
Langston C A,Brazier R,Nyblade A A,et al,1998,Local magnitude scale and seismicity rate for Tanzania,East Africa Bull Seismol Soc Am,88(3),712-721.
Miao Q W,Langston C A,2007,Empirical distance attenuation and the local magnitude scale for the central United States,Bull Seismol Soc Am,97(6),2137-2151.
Nguyen L M,Lin T L,Wu Y M,et al,2011,The first M_L scale for north of Vietnam J Asian Earth Sciences,40,279-286.
Ottemoller L,Sargeant S,2013,A Local Magnitude Scale M_L for the United Kingdom,Bull Seismol Soc Am,103(5),2884-2893.
Press W H,Flannery B P,Teukolsky S A,et al,1986 Numerical Recipes,New York,Cambridge Univ Press,702.
Richter C F,1935,An instrumental earthquake magnitude scale,Bull Seismol Soc Am,25,1-32.
Richter C F,1958,Elementary Seismology,San Francisco freeman W H,1-768.
Saunders I,Ottem(o|")ller L,Brandt M B C,et al,2013,Calibration of an M_L scale for South Africa using tectonic earthquake data recorded by the South African National Seismograph Network 2006 to 2009 J Seismol,17(2),437-451.
Uhrhammer R A,Collins E R,1990,Synthesis of Wood-Anderson seismograms from broadband digital records,Bull Seismol Soc Am,80,702-716.
Wu Y M,Allen R M,Wu C F 2005,Revised M_L determination for crustal earthquakes in Taiwan Bull Seismol Soc Am,95(6),2517-2524.
(1)中国地震局监测预报司,2011,测震台网运行管理细则,中震测函(98号)
陈培善、秦嘉政,1983,量规函数、台站方位、台基及不同测量方法对近震震级M_L的影响,地震学报,5(1),87-98。
樊星、包东健,1990,内蒙古地区M_L近震震级系统的初步研究,华北地震科学,8(1),38-46。
高国英、埃尼瓦尔,1987,新疆地区量规函数、台站校正值的分布计算,西北地震学报,9(1),103~107。
国家地震局,1978,地震台站观测规范(试行)北京:地震出版社。
李善邦,1981,中国地震,北京:地震出版社。
刘瑞丰、任克新、张立文等,2011,利用宽频带数字地震资料测定地震震级的方法研究,地震地磁观测与研究,32(3),1-8。
孟晓琴、梁向军、张玲等,2008,山西地震台网速报震级与量规函数的研究,山西地震,2,19-23。
项月文、曾文敬、罗丽等,2010江西数字地震台网近震震级偏差与量规函数关系的研究,华南地震,30(3),95-104。
薛志照,1992,近震震级M_L量规函数和台站校正值,华北地震,科学,10(1),60-65。
严尊国、师蓉梅,1983,地方性均匀震级系统量规函数的区域特征,地震地磁观测与研究,74(4),4-10。
严尊国、李普丽、薛军蓉,1992,中国近震震级量规函数研究,中国地震,8(4),76-91。
阎志德、任铁生、张亚玲,1989,甘、青、宁地区近震震级测定的改进及其起算函数的修正,西北地震学报,11(3),89-95。
袁卫红、戴佩新、杜江等,2012,大庆地震台网近震震级偏差分析与校正,地震地磁观测与研究,33(2),27-31。
赵明淳、毛国良、张从珍等,2005,河北遥测台网速报震级偏差与量规函数关系的研究,地震地磁观测与研究,26(5),87-94。
Alsaker A,Kvamme L B,Hansen R A,et al,1991,The M_L scale in Norway,Bull Seismol Soc Am,81,379-398.
Askari R,Ghods A,Sobouti F 2009,Calibration of an M_L scale in the Alborz region,Northern Iran,Bull Seismol Soc Am,99(1),268-276.
Bagh S Alhasan A,Tello S,2014,Local magnitude calibration of the Syrian national digital seismological network,Seis Res Lett 35(2),324-333.
Bakun,W H Joyner W B,1984,The M_L scale in central California,Bull Seismol Soc Am,74,1827-1843.
Bobbio A,Vassallo M,Festa G,2009,A local magnitude scale for southern Italy,Bull Seismol Soc Am,99(4),2461-2470.
Havskov J,Ottem(o|")ller L,2010,Routine earthquake analysis in earthquake seismology,with sample data,exercise and software,Chapter 6,Springer,ISBN 978-90-481-8696-9.
Hutton,L K,Boore D M,1987,The M_L scale in southern California,Bull Seismol Soc Am,77(6),2074-2094.
IASPEI,2011,Summary of magnitude working group recommendations on standard procedures for determining earthquake magnitudes from digital data[EB/OL],http//www.iasper.org/commissions/CSOI/Summary_WG-Recommendations_20110909.pdf.
Kanamori H,Maechling P,Hauksson E,1999,Continuous monitoring of ground-motion paramters,Bull Seismol Soc Am,89(1),311-316.
Keir D,Stuart G W,Jackson A,et al 2006,Local earthquake magnitude scale and seismicity rate for the Ethiopian Rift Bull Seismol Soc Am,96(6),2221-2230.
Langston C A,Brazier R,Nyblade A A,et al,1998,Local magnitude scale and seismicity rate for Tanzania,East Africa Bull Seismol Soc Am,88(3),712-721.
Miao Q W,Langston C A,2007,Empirical distance attenuation and the local magnitude scale for the central United States,Bull Seismol Soc Am,97(6),2137-2151.
Nguyen L M,Lin T L,Wu Y M,et al,2011,The first M_L scale for north of Vietnam J Asian Earth Sciences,40,279-286.
Ottemoller L,Sargeant S,2013,A Local Magnitude Scale M_L for the United Kingdom,Bull Seismol Soc Am,103(5),2884-2893.
Press W H,Flannery B P,Teukolsky S A,et al,1986 Numerical Recipes,New York,Cambridge Univ Press,702.
Richter C F,1935,An instrumental earthquake magnitude scale,Bull Seismol Soc Am,25,1-32.
Richter C F,1958,Elementary Seismology,San Francisco freeman W H,1-768.
Saunders I,Ottem(o|")ller L,Brandt M B C,et al,2013,Calibration of an M_L scale for South Africa using tectonic earthquake data recorded by the South African National Seismograph Network 2006 to 2009 J Seismol,17(2),437-451.
Uhrhammer R A,Collins E R,1990,Synthesis of Wood-Anderson seismograms from broadband digital records,Bull Seismol Soc Am,80,702-716.
Wu Y M,Allen R M,Wu C F 2005,Revised M_L determination for crustal earthquakes in Taiwan Bull Seismol Soc Am,95(6),2517-2524.
(1)中国地震局监测预报司,2011,测震台网运行管理细则,中震测函(98号)
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |