The Kinematics of the East Anatolian Fault Zone, Eastern Turkey and Seismotectonic Implications

Year 2019, Volume: 11 Issue: 4, 494 - 506, 05.12.2019

Aylin Tan , Haluk Eyidoğan

https://doi.org/10.24107/ijeas.649330

Cited By: 2

Abstract

One of most prominent and active faults in Eastern Turkey is the NE-SW
oriented left-lateral strike-slip East Anatolian Fault Zone (EAFZ) with a
length of approximately 500 km. In this study, we have examined the recent
seismicity of EAFZ that was obtained from the records of 34 three-dimensional
broad-band earthquake stations established around the fault zone within TURDEP
project since 2006. Further the seismicity and fault mechanism solutions of
EAFZ, Eastern Turkey have been examined. The new fault mechanism solutions in
addition to previously published 220 earthquakes, with a magnitude of M_L=2.0
or more were determined by a local moment tensor solution and P-wave first
motion data. It was suggested that the recent tectonic deformation of EAFZ
south of Türkoğlu was taken up by the left-lateral strike-slip active faults in
between Amik and Adana Basins were young trans-tensional stress regime was also
active. 

Keywords

East Anatolian Fault Zone, Earthquake, Fault Mechanism Solution, Stress Tensor Analyses

Thanks

We thank to TÜBİTAK-MAM because of their supports of knowledge TURDEP Project TÜBİTAK-MAM, Turkey during this study.

References

• [1] Köküm, M. and Özçelik, F. 1789 Palu Depremi, Fırat University Harput Applied and Research Center, International Palu Symposium Proceedings, 11-13 October, 329-337, 2018.
• [2] Rojaya, B., Heimannb, A. and Toprak, V. Neotectonic and volcanic characteristics of the Karasu Fault Zone (Anatolia, Turkey): The transition zone between Dead Sea transform and the East Anatolian fault zone, Geodinamica Acta, 14, 1-17, 2001.
• [3] Ergin, M., Aktar, M. and Eyidoğan, H. Present-Day seismicity and seismotectonics of the Cilician Basin: Eastern Mediterranean Region of Turkey, Bulletin of Seismological Society of America, 94, 3, 930-939, 2004.
• [4] Westaway, R. Kinematic consistency between the Dead Sea Fault Zone and the Neogene and Quaternary left-lateral faulting in SE Turkey, Tectonophysics, 391, 1-4, 203-237, 2004.
• [5] Tan, A., Eyidoğan, H., Tan, O., Pabuccu, Z., Yörük, A. and Geçgel, V. The new fault mechanism solutions of East Anatolian Fault Zone, Eastern Turkey and Seismo-Tectonic Implications, In Proceedings ESC 2010, 6-10 September 2010, Montpellier, France, p. 7, 2010.
• [6] Ambraseys, N. N. The 12th century seismic paroxysm in the Middle East: A historical perspective, Annuals of Geophysics, 47, 733-758, 2004.
• [7] Çetin, H., Güneyli, H. and Mayer, L. Paleoseismology of the Palu–Lake Hazar segment of the East Anatolian Fault Zone, Turkey, Tectonophysics, 374, 163– 197, 2003.
• [8] Celep, Z., Erken, A., Taşkın, B., and İlki, A. Failures of masonry and concrete buildings during the March 8, 2010 Kovancılar and Palu (ElazıĞ) Earthquakes in Turkey, Engineering Failure Analysis, 18, 868–889, 2011.
• [9] Italiano, F., Şaşmaz, A., Yüce, G. and Okan, O. O. Thermal fluids along the East Anatolian Fault Zone (EAFZ): Geochemical features and relationships with the tectonic setting, Chemical Geology, 339, 103–114, 2013.
• [10] Külahçı, F., İnceöz, M., Doğru, M., Aksoy, E. and Baykara, O., Artificial neural network model for earthquake prediction with radon monitoring, Applied Radiation and Isotopes, 67, 212–219, 2009.
• [11] http://www.mam.gov.tr/english/YDBE/projeler/Makes-Major.html
• [12] Delvaux, D. and Sperner, B. New aspects of tectonic stress inversion with reference to the TENSOR program, NIEUWLAND, D. A. (Ed.) New insights into structural interpretation and modelling, Geological Society, London, Special Publications 212,75-100, 2003.
• [13] Delvaux, D., Moeys, R., Stapel, G., Petit, C., Levi, K., Miroshnichenko, A., Ruzhich, V. and Sankov, V. Paleostress reconstructions and geodynamics of the Baikal region, Central Asia. Part II: Cenozoic rifting. In: Cloetingh, S., Fernandez, M., Munoz, J.A., Sassi, W. and Horvath, F. (Editors), Structural controls on sedimentary basin formation, Tectonophysics, 282, 1-38, 1997.
• [14] Nalbant, S. S., McCloskey, J., Steacy, S. and Barka, A.A. Stress accumulation and increased seismic risk in Eastern Turkey, Sci. Lett., 195, 291-298, 2002.
• [15] Köküm, M. and Özçelik, F. A case study on reassessment of historical earthquakes: 1789 Palu (Elazığ) Earthquake, Eastern Anatolia, Turkey, Bulletin of the Mineral Research and Exploration, 161-?, 2020 (Uncorrected Proof).
• [16] Sayın, E., Yön, B., Calayır, Y. and Karaton, M., Failures of masonry and adobe buildings during the June 23, 2011 Maden-(Elazığ) earthquake in Turkey, Engineering Failure Analysis, 34, 779–791, 2013.
• [17] Sunkar, M., Major Earthquakes in The Historical and Instrumental Periods on Palu (Elazığ) and Effects on Settlements, Fırat University Harput Applied and Research Center, International Palu Symposium Proceedings, 11-13 October, 297-309, 2018.
• [18] Şentürk, S, Çakır, Z., Ergintav, S. and Karabulut, H., Reactivation of the Adıyaman Fault (Turkey) through the Mw 5.7 2007 Sivrice earthquake: An oblique listric normal faulting within the Arabian- Anatolian plate boundary observed by InSAR, Journal of Geodynamics, 131, 101654, 2019.
• [19] Yönlü, Ö., Altunel, E., Karabacak, V. and Akyüz, H., Evolution of the Gölbaşı basin and its implications for the long-term offset on the East Anatolian Fault Zone, Turkey, Journal of Geodynamics, 65, 272– 281, 2013.