关于甘肃地区小震调制比异常区域面积选取问题的讨论  

DISCUSSION ON CHOICE OF THE AREA OF REGION FOR CALCULATING MODULATED SMALL EARTHQUAKE RATIO IN GANSU

作　　者：董积平[1] 

机构地区：[1]国家地震局兰州地震研究所

出　　处：《西北地震学报》1997年第3期94-96,100,共4页Northwestern Seismological Journal

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.

关 键 词：甘肃 小震调制比 异常区域面积 地震预报 

分 类 号：P315.7[天文地球—地震学]