by Lotfollah Emadali, Sasan Motaghed
2025,3(2);
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Abstract
This study investigates the surface deformation caused by the 28 March 2025 Myanmar earthquake (Mw 7.7) using Interferometric Synthetic Aperture Radar (InSAR) techniques with Sentinel-1 data. The earthquake, occurring along the Sagaing Fault, resulted in significant ground displacement, impacting infrastructure and communities. InSAR analysis reveals detailed deformation patterns, quantified through interferograms, multi-look processing, unwrapped phase data, and displacement maps. Results indicate a rupture zone extending approximately 110 km, with maximum subsidence of -0.82 meters and uplift of 0.18 meters, along the line of sight of satellite (LOS). These findings correlate with observed structural damage and provide insights into the fault's slip distribution. This study demonstrates the effectiveness of InSAR in assessing earthquake-induced deformation, offering valuable data for seismic hazard assessment, disaster response, and long-term resilience planning in this vulnerable region. The integration of satellite-based remote sensing with macroseismic data contributes to a comprehensive understanding of seismic events, supporting improved risk mitigation strategies.
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