【摘要】 分析了中国大陆27个基准站运行以来至2011年3月的坐标时间序列数据,利用小波变换进行了分频段处理,重点分析了长趋势项(T≥512d)。从长趋势项曲线形态上可以看出站点存在分区特征,同一区域的站点曲线相关系数较高,且区域与地块重合性较好;在曲线形态出现涨落特征后,中国大陆及周边地区会发生Ms 7.5级以上地震。更多还原

【Abstract】 We give an analysis of 27 fiducial stations’coordinates of time series data in China since March 3,2011,which are sub-band processed through the wavelet transformation to extract a long trend items(T≥512 d) primarily.From the curve of the long trend items we can see that the stations have regional characteristics,the stations from the same region have a big correlation coefficient,and has a good coincidence with the block.When the curve has fluctuation characteristics,there always be earthquake above Ms 7.5 happened in Chinese mainland and its surroundings afterward.This phenomenon is of great significance and reference value for the medium-term(1-3 a) Earthquake prediction.更多还原