通过对1750年到1981年期间太阳活动与四川省强震(主要是七级以上地震)及降水异常关系的研究,发现四川省七级以上地震与太阳活动及干旱现象有较为密切的关系。一、太阳活动与强震的关系从1750年到1981年,四川省共发生7.0—7.9级地震12次(表一)。对这12次地震与太阳 Through the study of the relationship between the solar activity and the strong earthquakes in Sichuan Province (mainly earthquakes of magnitude 7 or above) and precipitation anomalies from 1750 to 1981, it is found that there is a close relationship between the earthquakes above magnitude 7 and the solar activity and drought in Sichuan Province. I. THE RELATIONSHIP BETWEEN SOLAR ACTIVITY AND MAST EARTHQUAKES From 1750 to 1981, a total of 12 earthquakes of 7.0-7.9 magnitude occurred in Sichuan Province (Table 1). The 12 earthquakes and the sun