地震地磁观测与研究Issue(1)：72-77,6.DOI:10.3969/j.issn.1003-3246.2015.01.012
北京地震台宽频带面波震级公式建立
Establish the BJT station′s calculation formula of seismic magnitude from broadband digital wavefrom
摘要
Abstract
Using the IASPEI recommended broadband surface madnitudeMBB,we recalculated the surface magnitudeMBB,MKIRNOSandMSK from the seismic recording of BJT station between 1993-2003 which in course of the analog recording system and digital recording system working collaterally. We individually compared the magnitude difference betweenMBB,MKIRNOS andMSK versusMCENC. The comparative result shows us the difference betweenMBB andMCENC was the minimum and the distribution of the magnitude difference followed with the whole delta range was stable. So,we use the least squares technique fi tted the BJT broadband surface wave magnitude calculated formula.关键词
MBB/MSK/MKIRNOS/MCENC/宽频带/震级偏差Key words
MBB/MSK/MKIRNOS/MCENC/broaband/magnitude difference引用本文复制引用
朱战斌,徐小明,田鑫..北京地震台宽频带面波震级公式建立[J].地震地磁观测与研究,2015,(1):72-77,6.基金项目
中央公益性科研院所基本科研业务专项(No.DQJB08B22)资助 （No.DQJB08B22）
