地震学报（英文版）2005，Vol.18Issue(6)：627-631,5.
Comparison between earthquake magnitudes determined by China seismograph network and US seismograph networks (Ⅰ): Body wave magnitude
Comparison between earthquake magnitudes determined by China seismograph network and US seismograph networks (Ⅰ): Body wave magnitude
摘要
Abstract
By using orthogonal regression method, a systematic comparison is made between body wave magnitudes determined by Institute of Geophysics of China Earthquake Administration (IGCEA) and National Earthquake Information Center of US Geological Survey (USGS/NEIC) on the basis of observation data from China and US seismograph networks between 1983 and 2004. The result of orthogonal regression shows no systematic error between body wave magnitude mb determined by IGCEA and mb (NEIC). Provided that mb (NEIC) is taken as the benchmark, body wave magnitude determined by IGCEA is greater by 0.2～0.1 than the magnitude determined by NEIC for M=3.5～4.5 earthquakes; for M=5.0～5.5 earthquakes, there is no difference; and for M≥6.0 earthquakes, it is smaller by no more than 0.2. This is consistent with the result of comparison by IDC (International Data Center).关键词
earthquake magnitude/surface wave/body waveKey words
earthquake magnitude/surface wave/body wave分类
天文与地球科学引用本文复制引用
LIU Rui-feng,CHEN Yun-tai,Peter Bormann,REN Xiao,HOU Jian-min,ZOU Li-ye,YANG Hui..Comparison between earthquake magnitudes determined by China seismograph network and US seismograph networks (Ⅰ): Body wave magnitude[J].地震学报（英文版）,2005,18(6):627-631,5.基金项目
Project "Seismic Data Share" from China Ministry of Science and Technology. （）
