Abstract
The results of the latest research on active faults in Southern Dagestan, in the area of Derbent, using the paleoseismological and archeoseismological methods are highlighted. The zone of seismogenerating fault—the Derbent segment of the regional tectonic boundary between the mountain structure of the Greater Caucasus and the North Caucasian foredeep—is revealed. The last seismotectonic slip along the fault due to a strong earthquake led to the displacement of the early medieval city wall of Derbent. The magnitude of this event was M ≈ 7, and, therefore, the seismic shaking intensity was I0 ≥ IX. This seismic event occurred, most likely, in the 10th century AD.
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