汾渭地震带的b值和年平均发生率的研究  

Study on b Value and Average Annual Incidence of Earthquakes in Fen-wei Seismotectonic Zone

作　　者：王继[1] 徐扬[1] 张丽[1] 薄建杰[1] 

机构地区：[1]山西省地震局,山西太原030002

出　　处：《山西地震》2002年第3期22-24,共3页Earthquake Research in Shanxi

摘　　要：为弄清当前汾渭地震带的 b值和年发生率的情况 ,用 Mapinfo的图象分析和检索功能对汾渭地震带的 b值进行了统计计算 ,推导出 4 .0级以上地震的年平均发生率 ,并对计算结果进行了分析 ,得出近 10 a由于带内强震数量很少 。Statistic calculation is made with the help of image analysis and event query of Mapinfo software to figure out current b value and average annual incidence of earthquakes in Fen wei seismotectonic zone The analysis is made for the result The conclusion is that current b value and average annual incidence of earthquakes in Fen wei seismotectonic zone is marginally different from ones obtained 10 years ago, due to rare strong earthquake occurrence in the zone

关 键 词：B值 地震频率 汾渭地震构造带 年发生率 地震目录 

分 类 号：P315.6[天文地球—地震学]