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利用常用的形态分析法,研究2015年7月3日新疆皮山M_s6.5地震的定点前兆数据异常特征,以便为未来该区域的地震预测提供判定依据。结果表明:在地震发生前,距震中400km范围内共计5个台站8套仪器10个测项出现不同程度的前兆异常,其中,趋势异常3项,中期异常4项,短临异常5项。异常物理量类型丰富,倾斜、应变、水位和电磁类仪器均有异常测项。异常特征主要表现为:速率快速增大或减小、反向变化和年变畸变等。异常具
The common morphological analysis method is used to study the anomaly characteristics of the fixed-point precursor data of the Pishan M_s6.5 earthquake on July 3, 2015 in order to provide a basis for future earthquake prediction in this area. The results show that there are different degrees of precursory anomalies in 10 measurements of 8 sets of instruments in 5 stations within 400km from the epicenter before the earthquake, of which 3 are abnormal trend, 4 are medium term and 5 are short-term and anomalous. Abnormal physical types of rich, tilt, strain, water level and electromagnetic instruments have abnormal items. Abnormal features mainly as follows: rapid increase or decrease in velocity, reverse change and annual variation. Abnormal with