地震前兆指标分析

A Study on the Index of Earthquake Precursors

针对震前各指标的变化幅度和相应震级,本文使用MATLAB软件建立相关系数分析矩阵模型,得出各指标对地震的敏感程度。同时,运用主成分分析法对相关指标进行综合分析,并以时间序列对综合指标进行数据拟合,得出地震前兆综合指标的变化趋势。

According to the variation range of the indicators before the earthquake and the corresponding magnitude, this paper used MATLAB software to establish the correlation coefficient analysis matrix model, and obtained the sen. sitivity of each index to the earthquake. At the same time, the principal component analysis method was used to com. prehensively analyze the relevant indicators, and the data was fitted to the comprehensive indicators by time series to obtain the trend of the comprehensive indicators of earthquake precursors.