3rd TAGRA

The Hakkari–Yüksekova region is located within the tectonically active Eastern Anatolian–Iranian Plateau and is characterized by major structures including the Şemdinli–Yüksekova Fault Zone, Başkale Fault, and Bitlis–Zagros Thrust Belt. This study investigates the relationship between regional magnetic structure, active faults, and seismicity. The magnetic structure was evaluated using the EMAG2-v3 magnetic anomaly dataset, while seismicity was examined using earthquakes with M > 3.0 recorded between 1900 and 2026. Active faults were compiled from the 2026 Active Fault Map of Türkiye and the GEM Global Active Faults
The results reveal pronounced lateral variations in the magnetic structure and magnetic source depths across the study area. Several prominent magnetic gradients and anomaly boundaries spatially coincide with or follow the major active faults, indicating a close relationship between subsurface magnetic discontinuities and regional fault geometry. Earthquake epicenters are also concentrated mainly along and around major active fault zones. The combined evaluation of magnetic anomalies, source depths, active faults, and seismicity provides complementary constraints on the subsurface structural architecture and contributes to a better understanding of the active tectonic framework of the Hakkari–Yüksekova region.