山东地震台网数字与模拟记录资料对比分析

对山东数字化台网荣成、烟台、莱阳、潍坊、苍山和大山台记录的垂直向P波初动半振幅、S波与P波的振幅比、P波、S波的卓越周期及振动持续时间比等参数进行了测算,并将之与同台址相应的模拟记录进行了对比,得出分析结果为:1 数字记录的速度震级较模拟记录的位移震级平均偏小0 11,数字记录的仿真震级与模拟记录的位移震级基本一致。2 数字记录的地震波参数与模拟记录一致性较好,没有明显差异。

A comparative analysis of the digital and analog data recorded by the Shandong Seismic Network

Semi amplitude of the P wave first motion, the amplitude ratio of S waves to P waves, the predominant periods of P waves and S waves, and the duration time ratio of P waves to S waves etc. are determined or calculated using the digital and analog records of the vertical components from the Rongcheng, Yantai, Laiyang, Weifang, Cangshan and Dashan stations of the Shandong Digital Network. The following results are obtained: 1. The velocity magnitudes of the digital records are less than the displacement magnitudes of the analog records by 0.11 on average. The imitative magnitudes of the digital records are roughly equal to the displacement magnitudes of the analog records. 2. The seismic wave parameters of the digital records are in good agreement with those of the analog records, no obvious difference is there between them.