Abstract
A simple classification is proposed for magnetic precursors of earthquakes. The high-latitude observations of the so-called Big Magnetic Pulses (BMP)—isolated high-amplitude magnetic pulses that sporadically arise against the undisturbed magnetic background—are used for searching for a probable correlation between BMPs and earthquakes. It is shown by the superposed epoch analysis that seismic activity slightly increases after BMPs. A wide maximum in the number of the earthquakes is observed within the first hour after the BMP. Thus, probably, a new type of magnetic precursors has been found. However, the mechanism of the relationship between BMPs and earthquakes remains open to discussion.
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Original Russian Text © O.D. Zotov, A.V. Guglielmi, A.L. Sobisevich, 2013, published in Fizika Zemli, 2013, No. 6, pp. 139–147.
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Zotov, O.D., Guglielmi, A.V. & Sobisevich, A.L. On magnetic precursors of earthquakes. Izv., Phys. Solid Earth 49, 882–889 (2013). https://doi.org/10.1134/S1069351313050145
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DOI: https://doi.org/10.1134/S1069351313050145