The records from fifty-eight identical broadband seismic stations located in different regions of the world have been studied from the strong geomagnetic storm of October 29–31, 2003. Oscillations with a period of 12–24 h have been analyzed. The stations located at a distance of 100 km from the coast of the ocean demonstrated anomalous variations in the strain rate after the storm. The effect lasted for a few days, and its amplitude reached several millimeters per minute.
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This work was supported by the Russian Foundation for Basic Research, project no. 18-05-00026.
Translated by E. Maslennikova
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Sobolev, G.A. Appearance of the Coast Effect in Tectonic Deformations Due to Magnetic Storms. Dokl. Earth Sc. 495, 841–844 (2020). https://doi.org/10.1134/S1028334X2011015X