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