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Palaeoearthquakes On The Kelkit Valley Segment Of The North Anatolian Fault, Turkey: Implications For The Surface Rupture Of The Historical 17 August 1668 Anatolian Earthquake, Cengi̇z Zabci, Hüsnü Serdar Akyüz, Volkan Karabacak, Taylan Sançar, Erhan Altunel, Hali̇l Gürsoy, Orhan Tatar
Palaeoearthquakes On The Kelkit Valley Segment Of The North Anatolian Fault, Turkey: Implications For The Surface Rupture Of The Historical 17 August 1668 Anatolian Earthquake, Cengi̇z Zabci, Hüsnü Serdar Akyüz, Volkan Karabacak, Taylan Sançar, Erhan Altunel, Hali̇l Gürsoy, Orhan Tatar
Turkish Journal of Earth Sciences
The 26 December 1939 Erzincan (Ms= 7.8) and 20 December 1942 Erbaa-Niksar (Ms= 7.1) earthquakes created a total surface rupture more than 400 km between Erzincan and Erbaa on the middle to eastern sections of the North Anatolian Fault. These two faulting events are separated by a 10-km-wide releasing stepover, which acted like a seismic barrier in the 20th century. To understand the rupture behaviour in this structurally complex section of the North Anatolian Fault, we undertook palaeoseismological trench investigations on the Kelkit Valley segment where there is little or no palaeoseismic information. We found evidence for three surface faulting …