摘要
应用IASPEI新推荐的宽频带面波震级M_S（BB）标准,选取云南数字地震台网记录到的2000~2011年云南及周边地区4.0级以上的433个地震事件为研究对象,测定其宽频带面波震级M_S（BB）,同时也重新测定面波震级M_S,并采用线性回归和正交回归方法,对M_S（BB）与M_S进行对比分析研究,得到了它们之间的回归关系式。结果表明：M_S比M_S（BB）系统偏高,当震级较大时,二者之间差别也偏大。
We applied the newbroadband surface wave magnitude MS（ BB）standard recommended by IASPEI to determine the broadband surface wave magnitude M_S（ BB）,and re-determine the surface wave magnitude MSof the selected 433 M≥4. 0 seismic events in Yunnan and its adjacent area recorded by Yunnan Digital Seismic Network from 2000 to 2011. Then we compared and analyzed M_S（ BB）and MSby using linear regression and orthogonal regression method,and obtained the relationship between them. The results showthat MSis higher than the M_S（ BB）for the same earthquake,and the difference between them is large when the magnitude is lager.
出处
《地震研究》
CSCD
北大核心
2016年第2期303-307,共5页
Journal of Seismological Research
基金
中国地震局"测震台网青年骨干培养专项"(20120104)资助
关键词
宽频带面波震级MS(BB)
面波震级MS
震级测定
震级转换
broadband surface wave magnitude MS（BB）
surface-wave magnitude MS
magnitude determi nation
magnitude conversion
