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

İLHAN O., MURATOĞLU TEMİZ G., ASKAN GÜNDOĞAN A., Taciroğlu E.

Bulletin of Earthquake Engineering, cilt.23, sa.9, ss.3569-3587, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 9
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1007/s10518-025-02188-9
  • Dergi Adı: Bulletin of Earthquake Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), Compendex, Geobase, INSPEC, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.3569-3587
  • Anahtar Kelimeler: 2023 Turkiye earthquakes, February 6, Ground motion simulations, Velocity model
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

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.