【摘要】 采用2003~2011年永安井的水位资料,利用Venedikov调和分析方法进行潮汐变化计算,从中挑选出对固体潮影响比较大的M2波潮汐振幅比和潮汐相位差,结合同期福建地区发生的多次4级以上中强地震和台湾地区发生的7级以上强震进行分析,发现多次地震震前该井的这两个潮汐参数异常变化明显,分析认为这可能与永安井所处的地质构造特征有关。更多还原

【Abstract】 Base on well water level data recorded by Yong’an Well during 2003 and 2011,we calculated tidal changes by Venedikov harmonic analysis method,and picked up the amplitude ratio of M2 wave tidal and phase difference of tidal which have great influence on earth tide.Combined with M > 4 moderate strong earthquakes in Fujian and M > 7 strong earthquakes in Taiwan in the same period,we found that these two tidal parameters of Yong’an well changed significantly before many earthquakes,and analyze that it may had associated with geological structure characteristic of Yong’an Well.更多还原