Correlation between lunar node tide and great earthquakes  

月亮赤纬角与全球大地震的相关研究

作　　者：Yin Dong-Shan Gao Yu-Ping Hui Hu 尹东山;高玉平;胡辉(中国科学院国家授时中心,西安陕西710600;中国科学院云南天文台,云南昆明650011)

机构地区：[1]National Time Service Center under Chinese Academy of Sciences,Xian,710600,P.R.China. [2]Yunnan Observatory,Chinese Academy of Science,Kunming 650011,P.R.China.

出　　处：《Applied Geophysics》2021年第1期1-8,128,共9页应用地球物理（英文版）

基　　金：the National Natural Science Foundation of China(No.91736207)。

摘　　要：This study selects six consecutive 18.6 years of global M≥7.0 earthquakes,calculates the lunar declination angle based on the time of the earthquakes,and divides the global earthquakes into 13 research regions according to the global plate distribution facts to explore the lunar infl uence of earthquakes.The relationship between the lunar declination angle and these earthquakes is analyzed.The analysis results show that when the moon advances to a certain interval of its declination angle,the earthquakes are concentrated in a certain research region,whereas other research regions are relatively calm,providing a scientifi c basis for medium and long-term earthquake predictions in each research region.The 18.6-year cycle is the lunar declination angle change cycle,and it is also the major nutation cycle of the earth’s motion and lunar node movement cycle.This is,in reality,the eff ect of the lunar node tide,which is worthy of further study.为了探讨月亮对地震的影响,本文选取了6个连续的18.6年的全球M≥7.0地震,根据地震发生的时刻计算月亮赤纬角。根据全球板块分布事实,将全球地震分为13个研究区,分析月亮赤纬角与这些地震的关系。分析结果表明,当月亮运行到其赤纬角的某一区间时,地震有集中发生在某一研究区的特点,而其它研究区就相对比较平静,从而为各研究区中长期地震预测提供了科学依据。18.6年是月亮赤纬角的变化周期,也是地球运动的主章动周期和月亮的交点运动周期,所以实际上这就是交点潮的作用,值得进一步深入研究。

关 键 词：lunar declination angle lunar node tide great earthquakes dividing region study. 

分 类 号：P315.72[天文地球—地震学]