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Abstract <p>Instrumental seismological observations were used to study the features of horizontal oscillation amplitudes along and across the crest of a mountain range during earthquakes. It is shown that the spectral amplitudes of oscillations in the direction across the ridge significantly exceed the amplitudes of oscillations along the ridge in a wide frequency range, regardless of the azimuth to the epicenter, and the frequencies of natural oscillations along and across the ridge also differ significantly.</p>

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Influence of the Shape of a Nonisometric Mountain Relief on the Characteristics of Seismic Oscillations

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • A. G. Bugaevskiy

摘要

Abstract

Instrumental seismological observations were used to study the features of horizontal oscillation amplitudes along and across the crest of a mountain range during earthquakes. It is shown that the spectral amplitudes of oscillations in the direction across the ridge significantly exceed the amplitudes of oscillations along the ridge in a wide frequency range, regardless of the azimuth to the epicenter, and the frequencies of natural oscillations along and across the ridge also differ significantly.