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Abstract <p>It has been revealed that the epicenters of earthquakes in the Severomuysky Tunnel area are confined to positive anomalies of three morphometric parameters of the relief (depth of vertical dissection, asymmetry, and elevation kurtosis), delineated by values exceeding the median or 3rd quartile. The processing of these parameters using the fuzzy logic γ-operator and equivalent gradation method has shown that both algorithms are equally informative for identifying seismically active areas. It is found that seismic events are accompanied by an increase in the horizontal velocity of movement of the IRKJ and BADG GNSS stations and occur mainly at a small distance from Earth to the Moon and the Sun, which can be explained by an increased gravitational effect of the latter on the Earth’s lithosphere. Therefore, we have revealed a spatial relationship between seismicity and relief and a temporal relationship with astronomical parameters and the velocities of modern crustal movements.</p>

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Relationship of the Current Seismicity of the Severomuysky Tunnel Area with Relief and Geodetic Data

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • A. O. Agibalov,
  • V. M. Fedorov,
  • A. T. Mayakin,
  • A. A. Sentsov,
  • V. A. Zaitsev,
  • D. A. Simonov,
  • V. S. Zakharov,
  • V. L. Syvorotkin,
  • G. R. Balashov,
  • A. A. Kazantsev,
  • A. P. Pavlova

摘要

Abstract

It has been revealed that the epicenters of earthquakes in the Severomuysky Tunnel area are confined to positive anomalies of three morphometric parameters of the relief (depth of vertical dissection, asymmetry, and elevation kurtosis), delineated by values exceeding the median or 3rd quartile. The processing of these parameters using the fuzzy logic γ-operator and equivalent gradation method has shown that both algorithms are equally informative for identifying seismically active areas. It is found that seismic events are accompanied by an increase in the horizontal velocity of movement of the IRKJ and BADG GNSS stations and occur mainly at a small distance from Earth to the Moon and the Sun, which can be explained by an increased gravitational effect of the latter on the Earth’s lithosphere. Therefore, we have revealed a spatial relationship between seismicity and relief and a temporal relationship with astronomical parameters and the velocities of modern crustal movements.