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On February 6, 2023, an earthquake doublet occurred on the East Anatolian Fault Zone (EAFZ), producing significant surface displacements and causing great damage in Türkiye and Syria. We use Sentinel-1 and ALOS-2 SAR-derived co-seismic azimuth and range offsets, as well as Sentinel-2 optical data and GNSS co-seismic static offsets for the two events to constrain the static slip along the both strands of the EAFZ. We adopt a Bayesian framework, which allows us to explore the whole solution space and relies solely on the justifiable prior information without employing artificial regularization of the solution. We also account for the epistemic uncertainties due to the imperfect knowledge of the regional elastic structure in addition to the observational errors. The EAFZ is known to be highly heterogeneous, with multiple segments, as well as step-over and bend structures. Thus, accurate knowledge of the static slip …