地震工程学报2017，Vol.39Issue(6)：1076-1083,8.DOI:10.3969/j.issn.1000-0844.2017.06.1076
宁夏地区近震震级短周期量规函数的研究与修正
Research and Modification of Short Period Calibration Function of Local Earthquake Magnitude (ML )in Ningxia Area
摘要
Abstract
To calculate the deviation,average deviation,and standard deviation between single-station and average magnitudes in the Ningxia area,we performed a residual and multiple regres-sion analysis of the magnitude,and selected 7345 items of data from 1782 seismic events recor-ded by the Ningxia broadband digital seismic network from January 2009 to December 2016.We analyzed the frequency distribution of the magnitude deviations and modified the calibration func-tion of the local earthquake magnitude (M L )to obtain the calibration function of the local uni-form magnitude system for the Ningxia region.We obtained the attenuation characteristics of the maximum ground displacement and corresponding calibration function by multiple regression a-nalysis.Our results show that the modified mean square variance of the magnitude reduces from 0.2370 to 0.2289,and the maximum modified magnitude value is 0.51.关键词
宁夏/"十五"宽频带数字地震台网/近震震级/短周期量规函数Key words
Ningxia broadband digital seismic network/local earthquake magnitude/short period calibration function分类
天文与地球科学引用本文复制引用
李青梅,吕俊强,谢辉..宁夏地区近震震级短周期量规函数的研究与修正[J].地震工程学报,2017,39(6):1076-1083,8.基金项目
中国地震局监测、预报、科研三结合课题(CEA-JC/3JH-163002) （CEA-JC/3JH-163002）
