← Back to Sessions

Azimuthal and Radial Anisotropy of the Middle East

Description: 

Azimuthal anisotropy is a key parameter for understanding lithospheric deformation and mantle flow, and properly accounting for anisotropy can be helpful for accurately estimating seismic source parameters. We present MEAD-AZI, an azimuthally and radially anisotropic full-waveform inversion (FWI) model of the Middle East. The model builds upon MEAD-M20 (Orsvuran et al., in revision), which results from 20 conjugate-gradient iterations including transverse isotropy in the upper mantle. Starting from MEAD-M20, we have performed 15 more iterations, sequentially updating radial anisotropy and Rayleigh-wave azimuthal anisotropy. The inversion incorporates publicly available seismic data from global and regional networks, as well as data from the Saudi Geological Survey and the Iranian Seismological Center. We employ multitaper phase measurements for Rayleigh and Love waves in 30–60 s and 50–100 s period bands. We will discuss our observations in the context of regional tectonics and mantle geodynamics, and assess their impact on improved estimation of seismic source parameters.

Session: New Frontiers in Seismic Observations and Modeling with Innovative Methods and Emerging Data on Earth and Other Planets [Poster]

Type: Poster

Date: 4/17/2026

Presentation Time: 08:00 AM (local time)

Presenting Author: Ebru Bozdag

Student Presenter: No

Invited Presentation: 

Poster Number: 108

Authors