Koci et al. (2011) and Kastelic et al. (2016) identified active faults in the region for the European SHARE project using satellite imagery and field mapping (with inferred fault slip rates in black numerals), and they subsequently remapped the region (revised fault slip rates in red numerals; Sevilgen et al., 2014). One can see that thrust faults near the 26 Nov 2019 epicenter are about 75 km long with slip rates of ~1 mm/yr. That would mean that M~6.4 quakes on these faults would have mean inter-event times of roughly 500-1,000 years.
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