CAJ | 학술논문

使用中国地震台网全面完成数字化之后（2008—2012年）的观测资料，对中国地震台网和美国地震台网测定的面波震级从震级大小、震中距、震源深度和震中方位进行对比分析。从对比结果看：数字化之后，中国地震台网测定的MS及MS7同美国地震台网测定的MSZ之间存在一定系统偏差；震源深度对震级偏差基本没有影响；震中距对震级偏差有一定影响，具体表现为随着震中距的增加，中国地震随之偏大，尤其以震中距大于105°的地震明显；4象限分布对偏差有一定影响，具体表现为MS为第Ⅳ象限出现偏差异常，MS7为第Ⅲ象限出现偏差异常。
사용중국지진태망전면완성수자화지후（2008—2012년）적관측자료，대중국지진태망화미국지진태망측정적면파진급종진급대소、진중거、진원심도화진중방위진행대비분석。종대비결과간：수자화지후，중국지진태망측정적MS급MS7동미국지진태망측정적MSZ지간존재일정계통편차；진원심도대진급편차기본몰유영향；진중거대진급편차유일정영향，구체표현위수착진중거적증가，중국지진수지편대，우기이진중거대우105°적지진명현；4상한분포대편차유일정영향，구체표현위MS위제Ⅳ상한출현편차이상，MS7위제Ⅲ상한출현편차이상。
Using the observation data recorded by the digitized China Earthquake Network (2008-2012), we contrasted and analyzed surface wave magnitude between CENC and NEIC from magnitude size, distance, depth and azimuth. The compare results show that, after digitization, surface-wave magnitudeMS andMSZ determined by CENC has some systematic difference fromMSZ determined by NEIC;hypocenter depth has little influence on magnitude deviation;whereas distance has some influence on magnitude deviation, for specific performance, with distance increase, the magnitude determined by CENC increase, especially where distance more than 105°;azimuth has some infl uence on magnitude deviation thatMS is abnormal onⅣ quadrant andMS7 is abnormal onⅢ quadrant.