Abstract—In their paper published in Izvestiya, Physics of the Solid Earth, G.A. Sobolev et al. (2020) discussed the results of their study. Firstly, it is noted that the most important element of the magnetic storm affecting seismicity is the Pc5 geomagnetic pulsations. In the context of magnetohydrodynamics, Pc5 are interpreted as standing Alfvén waves. It is perhaps the Alfvén waves that induce oscillations recorded by the authors of the cited paper. Secondly, it is hypothesized that the Pc5 spectrum is contributed by solar 5-min oscillations known in helioseismology. Thus, it is likely that there is yet another channel through which the Sun may affect the Earth and, inter alia, the Earth’s seismicity. Special focus is placed on the question of instrumental noise.

摘要——在他们发表在Izvestiya的论文中，固体地球物理学，GA Sobolev 等人。(2020) 讨论了他们的研究结果。首先，注意到影响地震活动的磁暴最重要的因素是Pc5地磁脉动。在磁流体动力学的背景下，Pc5 被解释为阿尔文驻波。引用论文的作者记录的可能是阿尔文波引起了振荡。其次，假设 Pc5 光谱是由日震学中已知的太阳 5 分钟振荡贡献的。因此，很可能还有另一个通道，太阳可以通过它影响地球，尤其是地球的地震活动。特别关注乐器噪声问题。