永胜倾斜潮调和分析结果及其与地震的关系  

RESULT OF HARMONIC ANALYSIS ON EARTH TILT TIDE AT YONGSHENG STATION AND ITS RELATION TO EARTHQUAKES

作　　者：何翔[1] 

机构地区：[1]云南省地震局,中国昆明650041

出　　处：《地震》1994年第4期65-72,共8页Earthquake

摘　　要：本文利用永胜台水管倾斜仪观测资料分别进行了资料长度为1月和1年的维尼迪科夫调和分析。研究了振幅因子与地震的关系,发现地震前EW分量M_2波与NS分量O_1波的γ值具有不同程度的异常变化,异常量为1.5％—7.7％,在地震发生前或地震发生时,各个主潮波γ值误差变大。用震例分析证明了倾斜固体潮振幅异常用于地震预报的可行性。In this paper, observed data of waterpipe tiltmeter at Yongsheng station is harmonically analysed using Venedikov method, taking data length of a year and a month, and relation between the value and the earthquake is also discussed. It is found that before the earthquake the γ value of EW component on M2 wave and NS component on O1 wave showed precursory variation, the amplitude is 1.5%-7.7%, before or during the earthquake the error of γ value of various tide wave is increased. The earthquake case analyses indicate that y value anomaly may be applied to predict earthquake.

关 键 词：地震预报 倾斜固体潮 调和分析 

分 类 号：P315.7[天文地球—地震学]