Ambient Seismic Noise Rayleigh Wave Tomography for the Aegean Region of Turkiye

Creative Commons License

Mulumulu E., Polat O. D., Chavez-Garcia F. J.

DEU International Symposium Series on Graduate Researches, İzmir, Türkiye, 7 - 08 Aralık 2023, ss.1-12

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: İzmir
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1-12
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

In this study, we have investigated group velocity changes of Rayleigh waves beneath the Aeagean region of Turkiye. Continuous noise data were collected from 43 broadband stations from different networks. Empirical Green’s functions were estimated between all possible station pairs via cross-correlation method. Group velocities of fundamental mode Rayleigh waves were determined from 716 Empirical Green’s functions between period range of 2-12s using multiple filter technique. The group velocity maps were computed from measured dispersions using the fast-marching surface tomography method. The group velocity maps are in good agreement with the main geological and tectonic features of the region, showing low velocities for the Quaternary alluvial basins, moderate velocities for the Cretaceous rocks, and high velocities for the basement rocks outcrop.