摘要
利用甘肃省地震台网1988年以来的地震目录,对计算小震调制比的区域面积选取作了研究,发现存在一个适用的最小面积,其大小约为6个平方度.
It is studied that size of the area of region for calculating modulated small earthquake ratio using earthquake catalogue recorded by Gansu seismic network since 1988.Modulated small earthquake ratio is calculated respectively in five regions chosen in Gansu Province and its vicinity.Results show that an appliable minimum area is 6 square degree.