Abstract

The paper presents the results of a study of the relationship of seismic events with geomagnetic disturbances arising from the acoustic impact on the lower ionosphere, which are caused by vibrations of the Earth’s surface at distances of several thousand kilometers from the earthquake source. The measurements were carried out at Mikhnevo Observatory, which is equipped with an instrumental complex, including seismic, acoustic, electromagnetic, and ionospheric means of observation. It is also equipped with a time-reference system that uses GPS receivers, which ensures an accuracy of the measurement data synchronization of no worse than 20 ns. The regularities of the formation of atmospheric and geomagnetic effects of distant earthquakes and the dependence of the time of their occurrence on the distance to the seismic source are shown on the example of five seismic events. It is demonstrated that the difference in the nature and time of the occurrence of geomagnetic pulsations associated with the impact of acoustic waves on the ionosphere differ from the signals caused by the seismomagnetic effect.

中文翻译：

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地震的地磁效应

摘要

本文介绍了地震事件与下层电离层的声波引起的地磁扰动之间关系的研究结果，地磁扰动是由距地震源几千公里处的地球表面振动引起的。测量是在Mikhnevo天文台进行的，该天文台配备了包括地震，声学，电磁和电离层观测手段在内的综合仪器。它还配备了使用GPS接收器的时间基准系统，可确保测量数据同步的精度不低于20 ns。在五个地震事件的示例中，显示了远处地震的大气和地磁效应形成的规律性以及它们发生的时间与距地震源的距离的关系。结果表明，与声波对电离层的影响有关的地磁脉动发生的性质和时间的差异与由地磁效应引起的信号不同。