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<p>This paper presents a V<sub>S30</sub>-dependent one-dimensional (1D) velocity model for the region affected by the February 6, 2023, earthquakes in Turkiye, which were marked by complex fault interactions along the East Anatolian Fault Zone. The proposed model utilizes V<sub>S</sub> measurements from 118 strong ground motion stations to develop a shallow V<sub>S</sub> structure (≤ 0.1&#xa0;km), integrates deeper V<sub>S</sub> data from Acarel et al. (<CitationRef CitationID="CR1">2019</CitationRef>), and establishes a V<sub>S</sub> transition zone for intermediate depths (0.1&#xa0;km to 0.6&#xa0;km). The model evaluation indicated minimal bias despite some discrepancies. Additionally, compressional wave velocities (V<sub>P</sub>) and densities (ρ) corresponding to the V<sub>S30</sub>-conditioned V<sub>S</sub> model are provided. The findings from this study can be applied in a range of disciplines, including geotechnical and structural engineering, as well as ground motion simulations.</p>

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An initial velocity model based on VS30 for the region affected by the February 6, 2023 Turkiye earthquakes

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年5月30日

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  • Okan Ilhan,
  • Gamze Muratoğlu,
  • Aysegul Askan,
  • Ertuğrul Taciroğlu

摘要

This paper presents a VS30-dependent one-dimensional (1D) velocity model for the region affected by the February 6, 2023, earthquakes in Turkiye, which were marked by complex fault interactions along the East Anatolian Fault Zone. The proposed model utilizes VS measurements from 118 strong ground motion stations to develop a shallow VS structure (≤ 0.1 km), integrates deeper VS data from Acarel et al. (2019), and establishes a VS transition zone for intermediate depths (0.1 km to 0.6 km). The model evaluation indicated minimal bias despite some discrepancies. Additionally, compressional wave velocities (VP) and densities (ρ) corresponding to the VS30-conditioned VS model are provided. The findings from this study can be applied in a range of disciplines, including geotechnical and structural engineering, as well as ground motion simulations.