At Balkar Trench T2, excavated in the northeastern part of the Pazarcık segment of the East Anatolian Fault, Yönlü and Karabacak (2023:4) dated Event Y using a single radiocarbon sample (GOL C-48), which yielded a calibrated age range of 990–1390 CE ( 2σ). This date provides a terminus post quem, while the terminus ante quem is recent, as the vertical faulting associated with Event Y terminates beneath approximately 25 cm of surface topsoil. Yönlü and Karabacak (2023:4) note that historical records do not indicate a recent earthquake in this area, excluding the 6 February 2023 Pazarcık–Kahramanmaraş earthquake, and suggest that Event Y may have resulted from one of the 1114 CE Mamistra and Marash Earthquakes. They further note that motion in Balkar Trench T2 involved dominant strike-slip movement with a reverse (compressional) component.

In the fault-perpendicular Tevekkelli Trench, Yönlü and Karabacak (2023:5-6) identified Event X as another large-magnitude surface-rupturing event. This event was constrained by two radiocarbon dates: an upper, later age of 1240–1470 CE and a lower, earlier age of 1141–841 BCE. Yönlü and Karabacak (2023:6) associated Event X in the Tevekkelli Trench with one of the 1114 CE Mamistra and Marash Earthquakes. Tevekkelli Trench exposed a prominent shear zone displaying strike-slip movement along a narrow fault zone.

If Event Y in Balkar Trench T2 and Event X in the Tevekkelli Trench represent the same earthquake, the combined radiocarbon constraints place the event between 990 and 1470 CE. This time window is consistent with the historical association proposed by Yönlü and Karabacak (2023:4, 6), who link the event to one of the 1114 CE Mamistra and Marash earthquakes. As noted by Zohar and Williams (2025), the 29 November 1114 CE Marash earthquake is the more likely candidate of the two 1114 CE earthquakes for rupture along the Pazarcık segment. As noted by Yönlü and Karabacak (2023:8-9), the "entire length of the Pazarcık segment" appears to have ruptured during this event.

Figure 4b - Trench Log of SW wall of Balkar trench - Thin black lines are stratigraphic contacts - colours show units - red lines are traces of faults - small rounded outlines are gravels - (trench location 374 154 m E/417 775 m N) - Yönlü and Karabacak (2023)

Figure 6b - Trench Log of NE wall of Tevekkelli trench - Thin black lines are stratigraphic contacts - colours show units - red lines are traces of faults - small rounded outlines are gravels - (trench location 322 045 m E/4 147107 m N) - Yönlü and Karabacak (2023)