祁连山中东段中强地震发生的天文气象条件  

ASTRONOMICAL AND METEOROLOGICAL CONDITIONS FOR MEDIUM-STRONG EARTHQUAKES IN MIDDLE-EASTERN SECTION OF QILIAN MOUNTAIN SEISMIC ZONE

作　　者：周民都[1] 郭增建[1] 许中秋 范兵[1] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000 [2]兰州市地震局,甘肃兰州730000

出　　处：《西北地震学报》2003年第2期155-157,165,共4页Northwestern Seismological Journal

基　　金：中国地震局兰州地震研究所论著编号 :LC2 0 0 3 0 1 8

摘　　要：对近20年来发生在祁连山中东段的7个中强地震发震时间进行了分析.结果表明:祁连山中东段中强地震基本上发生在节气附近,且多在一个月的上旬或下旬;地震发生前后天气比较冷;地震均发生在太阳活动的峰年或谷年附近.The origin times of 7 mediumstrong earthquakes in middleeastern section of Qilian mountain seismic zone in last 20 years are analysed. The result shows that: the earthquakes basically occur about solar terms, and in the first or last ten days of a month; the air temperature on epicenter area is colder before and after earthquake; the origin times are coincident with the peak year or the valley year of solar activity.

关 键 词：祁连山中东段 中强地震 节气 天气 太阳活动 

分 类 号：P315.728[天文地球—地震学]