Original scientific paper
https://doi.org/10.17794/rgn.2026.3.5
SEISMOGENIC ANALYSIS OF THE 2023 MW6.9 MURGHOB EARTHQUAKE, TAJIKISTAN, BASED ON MULTI-TRACK INSAR AND MODELLING
Rana Jaladara
; Geomatic Engineering, Faculty of Mineral Technology and Energy, Universitas Pembangunan Nasional “Veteran” Yogyakarta, Sleman 55283, Indonesia.
Naufal Setiawan
; Geomatic Engineering, Faculty of Mineral Technology and Energy, Universitas Pembangunan Nasional “Veteran” Yogyakarta, Sleman 55283, Indonesia.
*
Erlan Sumanjaya
; Department of Geodesy and Geomatics Engineering, Faculty of Engineering, University of Lampung, Bandar Lampung 35141, Indonesia.
* Corresponding author.
Abstract
This study investigates the 2023 Murghob Earthquake in Tajikistan (Mw 6.9) using modelling and multi-track InSAR techniques to analyze the surface deformation and fault dynamics. The modelling approach using Pyrocko produced observation, model, and residual images, each revealing aspects of the fault geometry and rupture characteristics. Our study identified a dominant right-lateral strike-slip event, with a calculated fault strike of 128°, dip of 67°, and rake of 177°, differing slightly from previous studies. Furthermore, the modelling also suggested mixed-slip faulting, incorporating normal faulting components along the Sarez Karakul Fault system and the Sarez-Murghab Thrust system. These findings indicate a more complex rupture process than previously emphasised in other models. Multi-track InSAR analysis supported these findings by providing high-resolution measurements of horizontal (dH) and vertical (dV) displacements. The horizontal displacements revealed significant strike slip movements (-0.53 to 0.12 meters) along the Aksu Murghab Fault system. Meanwhile, the vertical displacements indicated substantial uplift (-0.13 and 0.32 meters), likely due to normal and thrust faulting interactions. The results highlight the complexity of the region’s tectonic setting, which is influenced by multiple fault systems, including the Sarez-Karakul and Aksu Murghab faults. The study underscores the importance of integrating various geophysical methods to understand earthquake mechanisms better and improve seismic hazard assessments in tectonically active regions like Tajikistan.
Keywords
InSAR; Multi-track InSAR; earthquake modelling; 2023 Murghob Earthquake
Hrčak ID:
347413
URI
Publication date:
26.5.2026.
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