Preprint

·2025 OPEN ACCESS

Seismic Activity and Deformation of the Pütürge Segment of the East Anatolian Fault: Insights from Recent Earthquakes and Geodetic Observations

Seda Özarpacı YTU , Uǧur Doǧan YTU , Semih Ergintav YTU , Ziyadin Çakır YTU , Cengiz Zabcı YTU , Alpay Özdemir YTU , Efe Turan Ayruk YTU , İlay Farımaz YTU , Muhammed Turğut YTU , Binali Bilal Beytut YTU ,

Abstract

The Pütürge segment of the East Anatolian Fault (EAF) represents a critical link in the tectonic framework of the region. The northeastern end of this segment ruptured during the 2020 Sivrice earthquake (Mw 6.8), while the southwestern end marked the termination of the 2023 Kahramanmaraş earthquakes (Mw 7.7, Mw 7.6). Between these two events, the segment remained a notable seismic gap until the Mw 6.0 earthquake on October 16, 2024.This study utilizes GNSS and InSAR data to examine the deformation dynamics of the Pütürge segment before and after the 2024 earthquake. While the extent of rupture during the October event remains unclear, preliminary geodetic analyses provide valuable insights into strain accumulation, potential creep activity, and coseismic deformation patterns.Our findings contribute to understanding the seismic behavior of the Pütürge segment, emphasizing its importance in seismic hazard assessments and the broader tectonic setting of the East Anatolian Fault.

Keywords

Geodetic datum Seismology Deformation (meteorology) Fault (geology) Geology Geodesy North Anatolian Fault Oceanography

Subject Areas

earthquake and tectonic studies ·Geophysics ·Physical Sciences
Earthquake Detection and Analysis ·Geophysics ·Physical Sciences
Seismology and Earthquake Studies ·Artificial Intelligence ·Physical Sciences