CAJ | 학술논문

选用大同国家测震台2008年1月至2012年2月观测到的 Ms ≥5．0的地震事件，与中国地震台网中心正式地震目录中给出的震级，进行震级偏差统计分析，找出二者间的关系，并对产生偏差的原因进行分析。结果表明，大同台观测到远震的震级偏差均值为0．18，观测仪器和分析软件的不同、震中距、方位角、震级大小、震源深度对震级偏差均有一定的影响。
선용대동국가측진태2008년1월지2012년2월관측도적 Ms ≥5．0적지진사건，여중국지진태망중심정식지진목록중급출적진급，진행진급편차통계분석，조출이자간적관계，병대산생편차적원인진행분석。결과표명，대동태관측도원진적진급편차균치위0．18，관측의기화분석연건적불동、진중거、방위각、진급대소、진원심도대진급편차균유일정적영향。
Earthquakes with magnitudes (Ms) larger than 5 .0 recorded at Datong National Seismic Station from Jan .2008 to Feb . 2012 are selected to make statistical analysis of their magnitude deviations with magnitudes determined by China Earthquake Net‐works Center in formal earthquake catalogue .Relations between the two are figured out and the reason for such deviation is ana‐lyzed .The results show that the mean value of magnitude deviation for distant earthquakes is 0 .18 ,which depends on observation instrument and analysis software used ,epicentral distance ,azimuth ,magnitude and focal depth .