Surface rupture history and 18 kyr long slip rate along the Pazarcık segment of the East Anatolian Fault

• DOI: 10.1144/jgs2023-056
• Publication Date: 2023-09-27T09:59:40Z
• Authors: Önder Yönlü; Volkan Karabacak

We investigate the palaeo earthquakes and slip rate on Pazarcık segment of East Anatolian Fault, which was involved in surface rupture 6 February 2023 Pazarcık–Kahramanmaraş earthquake (M w 7.7) provided insights into long-term behaviour this major continental fault. Palaeoseismological data from two trench sites reveal evidence for at least five ruptures Holocene Period. The historical AD 1114 is verified both but following event 1513 identified only one site. In addition, age difference older events shows that activity separated by much longer periods relative quiescence range 500 to 1000 years, suggests quasiperiodic occurrence sub-segments segment. Our fault-parallel trenches revealed 101 ± 5 m offset last 18 kyr 51 1 9 a buried stream channel actual same respectively. correlation maximum abandonment with measured offsets 5.6 mm −1 Supplementary material: A table figures providing details radiocarbon ages are available https://doi.org/10.6084/m9.figshare.c.6850786