云南天文地震学的研究进展  

The Recent Progress in Astroseismology Study in Yunnan

作　　者：罗葆荣[1] 

机构地区：[1]中国科学院云南天文台,云南昆明650011

出　　处：《云南天文台台刊》2002年第1期47-54,共8页Publications of the Yunnan Observatoty

摘　　要：综述了 1 996年以来云南在天文地震学方面的最新研究进展 。The recent progress in astroseismology study in Yunnan after 1996 is summarized in this paper.The breakthrough in some scientific fields is specially discussed.The main contents are as follows: 1.The triggering effect of the tidal force on the seism (1)The seisms responding to the different triggering effects have different distribution in location.The seisms are often triggered in a relatively concentrated period. (2)The seismic center with the largest tidal force is not the sub-stellar point of the Sun and the Moon.The Sun and the Moon are even not in the elevated region of 54.7° where is the zenith distance of the seism center,but are about 90°.In other words,the Sun,the Moon,the Earth center and the seismic center are not in one straight line.Judging from this,The main factor of triggering the seism is the horizontal component of the tidal force. (3)It is demonstrated that the triggering effect of the tidal force on the seism is,in substance,the effect of the advance slide on the seismic fault. 2.The relation between other special positions of the heave solar system objects and the seism. Some special points are called as astronomical strange points.The points include that at which certain planets are in opposition or conjunction to the Moon,and the points at which some of the heave solar system objects are in the elevated region of 54.7° where is the zenith distance of the seism center.And some special positions of the lunar longitude ascending node,as well as some special phases of the obliquity of the lunar path and equator are all belong to this category.It is shown that the astronomical strange points and eruptions of the seism are closely related. 3.The relation among the Earth rotation,the time-latitude residual and the eruption of the seism. It is found that the increase of the Earth rotation speed can cause large seism.The unusual time-latitude residual and the eruption of the seism observed are closely related. 4.The modulation effect of solar activity on seism activity It is found t

关 键 词：天文地震学 云南 引潮力 触发作用 太阳 地球自转 时纬残差 

分 类 号：P315[天文地球—地震学] P183.5[天文地球—固体地球物理学]