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The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7)

Yıl 2025, Cilt: 68 Sayı: 4, 1 - 40

Elif Akgün , Mustafa Softa , Serap Çolak Erol , Ercan Aksoy , Serkan Gürgöze , Fikret Koçbulut , Hasan Sözbilir , Orhan Tatar

https://doi.org/10.25288/tjb.1537956

Öz

The Eastern Anatolian Fault Zone (EAFZ) is a significant neotectonic feature in Anatolia, characterized as an active intra-continental left-lateral strike-slip fault. The EAFZ comprises two distinct parts: the southern branch, referred to as the main branch, and the northern branch. This study examines the surface rupture near Çelikhan (Adıyaman) on the Erkenek Segment, which developed during the February 6, 2023 Pazarcık earthquake (Mw 7.7), occurring along the southern branch of the EAFZ. The primary emphasis of this study centers on preliminary findings derived from thorough geological investigations conducted on the surface fault rupture. Additionally, novel insights into seismic activity associated with the Erkenek Segment were revealed for the first time through meticulous field studies. In the studies, the maximum left-lateral displacement measured in the Çelikhan section of the surface fracture was 3.25 meters, accompanied by a vertical slip of 50 centimeters. The magnitude of left-lateral displacement decreased and attenuated moving northeastward from Çelikhan. Based on kinematic analysis of slip data obtained from fault planes along the Erkenek segment, the deformation aligned with the segment's geometry and occurred within a strike-slip tectonic regime influenced by compressional stress predominantly oriented in NE-SW and NNW-SSE directions.

Anahtar Kelimeler

East Anatolian Fault Zone Erkenek segment Surface rupture paleoseismology paleostress

Etik Beyan

I testify on behalf of all co-authors that our article submitted to Geological Bulletin of Turkey:

Destekleyen Kurum

TÜBİTAK

Proje Numarası

TÜBİTAK 1002-C Doğal Afetler Odaklı Saha Çalışması Acil Destek Programı ve TÜBİTAK 121Y410

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6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7)

Yıl 2025, Cilt: 68 Sayı: 4, 1 - 40

Elif Akgün , Mustafa Softa , Serap Çolak Erol , Ercan Aksoy , Serkan Gürgöze , Fikret Koçbulut , Hasan Sözbilir , Orhan Tatar

https://doi.org/10.25288/tjb.1537956

Öz

Anadolu’nun Neotektonik dönemi yapılarından biri olan Doğu Anadolu Fay Zonu (DAFZ) kıta içi deformasyonu sağlayan sol yanal doğrultu atımlı aktif bir fay zonudur. DAFZ; kuzey kol ve ana kol olarak da adlandırılan güney kol olmak üzere iki bölümden oluşmaktadır. Bu çalışmanın konusunu DAFZ’nin güney kolu üzerinde meydana gelen 6 Şubat 2023 Pazarcık depreminde (Mw: 7,7), Erkenek Segmenti üzerinde gelişen yüzey kırığının Çelikhan (Adıyaman) yakınlarındaki bölümü üzerinde gerçekleştirilen detaylı jeolojik, paleosismolojik ve haritalama çalışmalarının ön bulguları oluşturmaktadır. Yapılan çalışmalarda yüzey kırığı Çelikhan kesiminde 50 cm düşey atımın eşlik ettiği maksimum sol yanal yer değiştirme miktarı 3,25 m olarak ölçülmüştür. Çelikhan’ın kuzeydoğusuna doğru gidildikçe sol yanal yer değiştirme miktarının azaldığı ve sönümlendiği görülmüştür. Erkenek segmenti boyunca fay düzlemlerinden ölçülen kayma verilerinin kinematik analizi sonucunda, segmentin geometrisi ile uyumlu deformasyonun yaklaşık KD-GB ve KKB-GGD doğrultulu sıkışma gerilmesiyle ilişkili doğrultu atımlı tektonik rejim altında geliştiği saptanmıştır.

Anahtar Kelimeler

Doğu Anadolu Fay Zonu Erkenek Segmenti Yüzey Kırığı paleosismoloji paleostres

Etik Beyan

Bütün yazarlar adına, makalemizin Türkiye Jeoloji Bülteni’ne sunulduğunu beyan ederim.

Destekleyen Kurum

TÜBİTAK

Proje Numarası

TÜBİTAK 1002-C Doğal Afetler Odaklı Saha Çalışması Acil Destek Programı ve TÜBİTAK 121Y410

Teşekkür

Bu çalışma, 6 Şubat 2023 deprem çiftlerinin ardından TÜBİTAK’ın başlattığı 1002-C Doğal 638 Afetler Odaklı Saha Çalışması Acil Destek Programı ve TÜBİTAK 121Y410 numaralı Deprem 639 özel çağrıları-1001 projesi kapsamında desteklenmiştir.

Kaynakça

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  • Karabacak V., Özkaymak Ç., Sözbilir H., Tatar O., Aktuğ B., Özdağ Ö.C., Çakır R., Aksoy E., Koçbulut F., Softa M., Akgün E., Demir A. & Arslan G. (2023). The 2023 Pazarcık (Kahramanmaraş, Türkiye) Earthquake (Mw: 7.7): Implications for surface rupture dynamics along the East Anatolian Fault Zone. Journal of the Geological Society, Artcile jgs2023-020. https://doi.org/10.1144/jgs2023-020
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  • Koçyiğit, A., Yılmaz, A., Adamia, S. & Kuloshvili, S. (2001). Neotectonics of East Anatoloian Plateau (Turkey) and Lesser Caucasus: İmplication for transition from thrusting to stirike-slip faulting. Geodinamica Acta, 14, 177-195.
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  • McClusky, S., Balassanıan, S., Barka, A.A., Demir, C., Ergintav, S., Georgıev, I., Gürkan, O., Hamburger, M., Hurst, K., Kahle, H., Kastens, K., Kekelidze, G., King, R.W., Kotzev, V., Lenk, O., Mahmoud, S., Mishin, A., Nadarıa, M., Ouzounis, A., Paradıssıs, D., Peter, Y., Prelepın, M., Reilinger, R.E., Sanlı, I., Seeger, H., Tealeb, A., Toksöz, M.N. & Veis, G. (2000). Global positioning system consraints on plate kinematics and dynamics in the eastern Mediterranean and Caucasus. Journal of Geophysical Reseaech Solid Earth, 105(B3), 5685-5719. https://doi.org/10.1029/1999JB900351
  • McKenzie, D. P. (1976). The East Anatolian Fault. A major structure in Eastern Turkey. Earth and Planetary Science Letters, 29(1), 189-193. https://doi.org/10.1016/0012-821X(76)90038-8
  • Muehlberger, W. R. & Gordon, M. B. (1987). Observation on the coplexity of The East Anatolian Fault, Turkey. Journal of Structural Geology, 9(7), 899-903. https://doi.org/10.1016/0191-8141(87)90091-5
  • Navabpour, P., Angelier, J. & Barrier, E. (2007). Cenozoic post-collisional brittle tectonic history and stress reorientation in the High Zagros Belt (Iran, Fars Province). Tectonophysics, 432(1–4), 101–131.
  • Okay, A. I. & Tüysüz, O. (1999). Tethyan sutures of northern Turkey. Geological Society, London, Special Publications, 156(1), 475-515.
  • Oral, M. B., Reilinger, R. & Toksöz, R. (1992). Deformation of the Anatolian block as deduced from GPS measurements. Transactions, American Geophysical Union, EOS, 73, 120.
  • Özener, H., Arpat, E., Ergintav, S., Doğru, A., Çakmak, R., Turgut, B. & Doğan, U. (2010). Kinematics of the eastern part of the North Anatolian Fault Zone. Journal of Geodynamics, 49(3-4), 141-150.
  • Parlak, O., Yavuzoğlu, A., Bayrak, A. ve Olgun, Ş. (2023). 06 Şubat 2023 Ekinözü (Kahramanmaraş) Depremi (Mw 7, 6) saha gözlemleri ve ön değerlendirmeler. MTA Yerbilimleri ve Madencilik Dergisi, 3(3), 81-98.
  • Perincek D. & Kozlu H. (1984). Stratigraphy and structural relations of the units in the Afsin-Elbistan-Dogansehir region (Eastern Taurus), Geology of the Taurus belt. International Symposium, 181-198.
  • Perinçek, D. & Çemen, İ. (1990). The structural relationship between the East Anatolian and Dead Sea fault zones in Southeastern Turkey. Tectonophysics,172, 331-340.
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  • Seymen, İ. & Aydın, A. (1972). Bingöl deprem fayi ve bunun Kuzey Anadolu fay zonu ile ilişkisi. Bulletin of the Mineral Research and Exploration, 79(79), 1-12.
  • Softa, M., Kocbulut, F., Akgün, E., Aksoy, E., Sözbilir, H., Tatar, O., ... & Arslan, G. (2024). Surface rupture during the 6th of February 2023 Mw 7.6 Elbistan-Ekinözü (Kahramanmaraş) earthquake: implications for fault rupture dynamics along the northern branch of East Anatolian Fault Zone. Turkish Journal of Earth Sciences, 33(1), Article 2. https://doi.org/10.55730/1300-0985.1895
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  • Yılmaz, Y., Çemen, İ. & Yiğitbaş, E. (2022). Tectonics of Eastern Anatolian Plateau; Final Stages of Collisional Orogeny in Anatolia. In E. J. Catlos & İ. Çemen (Eds.), Compressional Tectonics: Plate Convergence to Mountain Building Chapter 8 (pp.: 223-244). https://doi.org/10.1002/9781119773856.ch8
  • Yönlü, Ö., Altunel E. & Karabacak V. (2017). Geological and geomorphological evidence for the southwestern extension of the East Anatolian Fault Zone, Turkey. Earth and Planetary Science Letters, 469, 1-14.
  • Yönlü, Ö. & Karabacak, V. (2024). Surface rupture history and 18 kyr long slip rate along the Pazarcık segment of the East Anatolian Fault. Journal of the Geological Society 181(1), Artcile jgs2023-056. https://doi.org/10.1144/jgs2023-056
  • Yürür, M. T. & Chorowicz, J. (1998). Recent volcanis, tectonics and plate kinematics near the junction of the African, Arabian Anatolian plates in the eastern Mediterranean. Journal of Volcanology and Geothermal Research, 85, 1-15. https://doi.org/10.1016/S0377-0273(98)00046-8
Toplam 84 adet kaynakça vardır.

Ayrıntılar

Birincil Dil Türkçe
Konular Genel Jeoloji
Bölüm Makaleler - Articles
Yazarlar

Elif Akgün 0000-0002-6556-2413

Mustafa Softa 0000-0001-5064-9260

Serap Çolak Erol 0000-0003-1957-3012

Ercan Aksoy 0000-0001-5078-7217

Serkan Gürgöze 0000-0002-3025-2327

Fikret Koçbulut 0000-0003-3578-029X

Hasan Sözbilir 0000-0002-3777-4830

Orhan Tatar 0000-0001-9579-1607

Proje Numarası TÜBİTAK 1002-C Doğal Afetler Odaklı Saha Çalışması Acil Destek Programı ve TÜBİTAK 121Y410
Erken Görünüm Tarihi 30 Aralık 2024
Yayımlanma Tarihi
Gönderilme Tarihi 23 Ağustos 2024
Kabul Tarihi 9 Ekim 2024
Yayımlandığı Sayı Yıl 2025 Cilt: 68 Sayı: 4

Kaynak Göster

APA Akgün, E., Softa, M., Çolak Erol, S., Aksoy, E., vd. (2024). 6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7). Türkiye Jeoloji Bülteni, 68(4), 1-40. https://doi.org/10.25288/tjb.1537956
AMA Akgün E, Softa M, Çolak Erol S, Aksoy E, Gürgöze S, Koçbulut F, Sözbilir H, Tatar O. 6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7). Türkiye Jeol. Bült. Aralık 2024;68(4):1-40. doi:10.25288/tjb.1537956
Chicago Akgün, Elif, Mustafa Softa, Serap Çolak Erol, Ercan Aksoy, Serkan Gürgöze, Fikret Koçbulut, Hasan Sözbilir, ve Orhan Tatar. “6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) Depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7)”. Türkiye Jeoloji Bülteni 68, sy. 4 (Aralık 2024): 1-40. https://doi.org/10.25288/tjb.1537956.
EndNote Akgün E, Softa M, Çolak Erol S, Aksoy E, Gürgöze S, Koçbulut F, Sözbilir H, Tatar O (01 Aralık 2024) 6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7). Türkiye Jeoloji Bülteni 68 4 1–40.
IEEE E. Akgün, M. Softa, S. Çolak Erol, E. Aksoy, S. Gürgöze, F. Koçbulut, H. Sözbilir, ve O. Tatar, “6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7)”, Türkiye Jeol. Bült., c. 68, sy. 4, ss. 1–40, 2024, doi: 10.25288/tjb.1537956.
ISNAD Akgün, Elif vd. “6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) Depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7)”. Türkiye Jeoloji Bülteni 68/4 (Aralık 2024), 1-40. https://doi.org/10.25288/tjb.1537956.
JAMA Akgün E, Softa M, Çolak Erol S, Aksoy E, Gürgöze S, Koçbulut F, Sözbilir H, Tatar O. 6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7). Türkiye Jeol. Bült. 2024;68:1–40.
MLA Akgün, Elif vd. “6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) Depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7)”. Türkiye Jeoloji Bülteni, c. 68, sy. 4, 2024, ss. 1-40, doi:10.25288/tjb.1537956.
Vancouver Akgün E, Softa M, Çolak Erol S, Aksoy E, Gürgöze S, Koçbulut F, Sözbilir H, Tatar O. 6 Şubat 2023 Kahramanmaraş Pazarcık (Mw: 7,7) depremi ışığında Doğu Anadolu Fay Zonu Erkenek Segmentinin Kinematik Analizi / The Kinematics of Active Crustal Deformation in the Erkenek Segment of the Eastern Anatolian Fault Zone Using Comprehensive Surface Rupture Analysis from the February 6, 2023 Earthquake (Mw 7.7). Türkiye Jeol. Bült. 2024;68(4):1-40.

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