This study analyzes the dynamic source parameters of S-wave displacement spectra for 104 seismic events (1.7 ≤ \({M}_{L}\) ≤ 3.6) recorded by the Egyptian National Seismic Network (ENSN) between 2010 and 2024 in the Dahshour region, northwestern Egypt. The Generalized Inversion Technique (GIT) was employed to correct the source displacement spectra for receiver and path effects using a linear least-squares approach, assuming a reference site. Two seismic stations that belong to ENSN namely, New Bani Suef (NBNS) and New Katemiya (NKOT), were utilized as a reference site in the inversion analysis. Attenuation effects along the ray path and site-specific influences were removed to derive source spectra at each station. The averaged S-wave source spectrum deviates from the Brune ω2 source model. Key spectral parameters, including long-period amplitude (Ω₀) and corner frequency ( \({f}_{C}\) ), were determined, allowing for the estimation of source parameters. Corner frequency, Seismic moment, fault radius, and stress drop were calculated from the corrected displacement spectra. The S-wave displacement spectra exhibited a rapid decay at 10 Hz within the analyzed frequency range (0.8–50 Hz). For NBNS (reference site), the estimated corner frequency, seismic moment, source radius, and stress drop ranged from 2.6 to 9.6 Hz, 8.7 × 101⁸ to 1.2 × 1021 dyne-cm, 78.9 to 292.3 m, and 0.04 to 10.13 MPa, respectively. For NKOT, these values ranged from 2.8 to 9.9 Hz, 1.26 × 101⁹ to 1.58 × 1021 dyne-cm, 76.1 to 273.3 m, and 0.2 to 16.13 MPa, respectively. These results provide insights into the seismic source characteristics of the Dahshour region, contributing to a better understanding of earthquake dynamics, crucial for characterizing the energy release and rupture mechanisms of earthquakes in northwestern Egypt.
