玉树地区M_L和M_s震级转换公式的初步研究  

STUDY ON THE CONVERSATION OF M_L AND M_s IN THE YUSHU REGIONAL DIGITAL NETWORKS

作　　者：马丽[1] 李启雷[2] 罗宾生 白占孝[1] 罗自浩[1] 陈永花[1] MA Li;LI Qilei;LUO Binsheng;BAI Zhanxiao;LUO Zihao;CHEN Yonghua(Huangyuan Seismic Station, Qinghai Earthquake Agency, Huangyuan 812100, China;Qinghai Earthquake Agency, Xining 810001,China)

机构地区：[1]青海省地震局湟源地震台,青海湟源812100 [2]青海省地震局,青海西宁810001

出　　处：《高原地震》2018年第4期16-20,共5页Plateau Earthquake Research

基　　金：2017年青海省地震科学基金课题(2017B07)资助

摘　　要：利用青海地震台网记录到的2010年至2017年可同时测定M_L和M_s震级的地震,采用线性回归和正交回归方法对重新仿真后量取的近震震级和面波震级之间的关系进行拟合,并全面分析得到2种震级之间的转换关系式,即M_s=1. 13M_L-0. 80,并与郭履灿转换公式进行对比,两者存在相似性,但因地区差异存在系统偏差,差值大多在0. 3左右。Based on the earthquakes(ML and Ms)recorded from2010to2017by the seismic network of Qinghai,the linear regression and orthogonal regression methods for the simultaneous determination are used for fitting the relationship between the surface wave magnitude and the near-shock magnitude measured after re-simulation.The analysis and fitting results in the relationship between the two,that is,Ms=1.13M L-0.80,and compared with Guo Lücan’s conversion formula,there are similarities between the two,but there are systematic differences due to regional differences,and the difference is mostly around0.3.

关 键 词：玉树地区 近震震级 面波震级 转换公式 

分 类 号：P315.3[天文地球—地震学]