The Tuz Gölü Fault is a northwest-southeast fault zone extending more than 200 kilometres along the eastern edge of Lake Tuz, the great salt lake of central Anatolia. It bounds the subsiding Tuz Gölü basin and reflects the extensional and oblique tectonics that stretch the central Anatolian plateau.
Motion is dominantly normal with an oblique component, dropping the basin floor and controlling the position of the shallow, evaporating salt lake. Slip rates are low, but paleoseismic trenching has documented past surface-rupturing earthquakes along the fault.
There is no great historical earthquake firmly tied to the Tuz Gölü Fault, yet its length shows it can generate strong events with long recurrence times. Because it lies within the broad seismic province of central Turkey, it is included in national hazard assessments as a capable normal fault.