中国大陆强地震与地球自转角速度长期变化关系的初步分析

地球自转角速度变化对地质构造、地球物理现象的影响,前人已做过不少工作。其中,李四光、克罗波特金等认为,地壳构造运动的动力与地球自转角速度的变化有关。斯托伊柯（Stoyko）发现全球中、深震能量与自转速率有密切的关系。斯托瓦斯指出,近三百年来,绝大多数毁灭性地震都发生在地球自转角速度变

A PRELIMINARY STUDY ON THE RELATION BETWEEN THE GREAT EARTHQUAKES OF CHINA AND THE SECULAR VARIATION OF THE ANGULAR VELOCITY OF ROTATION OF THE EARTH

The additional force field on the earth crust produced by the variation of the angular velocity of the Earth's rotation is opposite in direction when the velocity increases or decreases.On account of this fact,in this paper we attempt to examine whether the effect on earthquake occurrences is also opposite,when the velocity increases or decreases.By marking the signs of the increase or decrease of the angular velocity of the Earth's rotation at the earthquakes epicentres on a geological tectonic map,we notice that in certain types of tectonic zones,the earthquakes always oc-curre when the velocity of rotation increases and few or almost no earthquake occurre when,the velocity decreases,and in some other types of tectonic zones,the case is just the opposite.We conclude that great earthquakes are possibly related to the variation of the angular velocity of the Earth's rotation.