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Variations in P -wave Travel Times Based on a Digital Seismogram Dataset
Acoustical Physics ( IF 0.8 ) Pub Date : 2021-02-05 , DOI: 10.1134/s1063771020060068
K. S. Nepeina , V. A. An

The paper presents the parameters of digital seismograms of artificial seismic events observed in from 1967 to 1990. The data were provided to the authors from the archive of the Sadovsky Institute of Geosphere Dynamics (IDG RAS). Seismograms were obtained after reformatting digital records. The archived data were analyzed to obtain a posteriori information on P-wave travel times, determined from the moment of the first arrival on the record of the vertical component (Z) of the short-period channel. The practice has shown that combining these data is sufficient to compile a map of signal arrival times from seismic sources. We present the regional travel-time curve for three test sites and linear trends of P-wave travel times by calendar date, as well as an isochron map for one of the sites.



中文翻译:

基于数字地震图数据集的P波传播时间的变化

本文介绍了从1967年到1990年观测到的人工地震事件的数字地震图的参数。这些数据是从萨多夫斯基地球动力学研究所(IDG RAS)的档案中提供的。重新格式化数字记录后获得了地震图。分析存档的数据以获得关于P波传播时间的后验信息,该信息从短周期通道的垂直分量(Z)的首次到达时刻起确定。实践表明,结合这些数据足以编译来自地震源的信号到达时间图。我们展示了三个测试地点的区域旅行时间曲线以及P的线性趋势日历日期的波旅行时间,以及其中一个站点的等时线图。

更新日期:2021-02-05
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