Coseismic Surface Deformation of the 2025 Myanmar Mw 7.7 Earthquake Revealed by Sentinel-1 Pixel Offset Tracking and DInSAR Analyses
Authors/Creators
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1.
University of Science and Technology of China
Description
This dataset contains pixel offset tracking (POT) results and differential interferometric SAR (DInSAR) data derived from Sentinel-1 SAR imagery, focusing on the Mw 7.7 earthquake that occurred in Myanmar on March 28, 2025. The data were collected from ascending tracks T070 and T143, and descending tracks T033 and T106, covering the southern segment of the Sagaing Fault, which represents the primary rupture zone of the earthquake.
Based on the combined POT and DInSAR results, we confirm that the 2025 Mw 7.7 Myanmar earthquake produced a large-scale right-lateral strike-slip rupture along the Sagaing Fault. The rupture extends approximately 500 km, with a maximum azimuthal displacement of about 4 meters, a maximum range displacement of about 1 meter, and a maximum LOS displacement of about 0.4 meters.
The data were processed by the InSAR team at the University of Science and Technology of China (USTC). This dataset is valuable for studies of earthquake-induced deformation, fault slip distribution, rupture dynamics, and seismic hazard assessment.
Files
myanmar_ddl_USTC_InSAR.zip
Additional details
Funding
- National Natural Science Foundation of China
- 4247040089
References
- Sandwell, D. ., R. . Mellors, X. Tong, M. Wei, and P. Wessel (2011), Open radar interferometry software for mapping surface deformation, Eos Trans. AGU, 92(28), doi:10.1029/2011EO280002.
- Li S, Wang X, Tao T, et al. Source model of the 2023 Turkey earthquake sequence imaged by sentinel-1 and GPS measurements: implications for heterogeneous fault behavior along the East Anatolian Fault Zone[J]. Remote Sensing, 2023, 15(10): 2618.
- Xu X, Sandwell D T, Ward L A, et al. Surface deformation associated with fractures near the 2019 Ridgecrest earthquake sequence[J]. Science, 2020, 370(6516): 605-608.