Abstract
An attempt is made to discover the so-called weekend effect in seismic activity variations, which is supposedly related to human activities. Using the statistical analysis of the world catalog of earthquakes, it is shown that this effect probably exists. Application of the synchronous detection method revealed that the sevenday variation in the number of earthquakes of magnitudes M ≤ 5.0 has a Sunday maximum with a relative amplitude of the variation of about 5%. We failed to find a convincing physical interpretation of the effect supposedly related to the seven-day cycle of industrial activity.
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Original Russian Text © O.D. Zotov, 2007, published in Fizika Zemli, 2007, No. 12, pp. 27–34.
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Zotov, O.D. Weekend effect in seismic activity. Izv., Phys. Solid Earth 43, 1005–1011 (2007). https://doi.org/10.1134/S1069351307120038
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DOI: https://doi.org/10.1134/S1069351307120038