Updated seismotectonic framework of Abu Dabbab Egypt based on focal mechanisms and stress inversion.

ABSTRACT: The Abu Dabbab seismic zone is located along Egypt's Red Sea margin, stands out as one of the most active seismic regions in the Eastern Desert. Characterized by frequent micro earthquakes, swarm like activity, and notable historical events. To enhance understanding of its tectonic framework, 408 earthquakes (Ml 0.7-3.0) recorded in 2004 were analyzed using digital waveform data from a temporary local seismic network consisting of ten vertical short period seismometers. Focal mechanisms were determined from P-wave first-motion polarities and classified using ternary plots. The analysis revealed a diverse range of faulting styles normal, strike slip, reverse, and oblique with clear depth dependent patterns. Shallow events (0-5 km) were dominated by normal and strike slip faulting, intermedi

SUBMITTER: Abdelazim M 

PROVIDER: S-EPMC12910059 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature