Field Data and Some Thoughts on the 2023 Kahramanmaraş Earthquakes Faults

Yıl 2025, Cilt: 68 Sayı: 4, 1 - 33

Yücel Yılmaz , Ömer Feyzi Gürer , Erdinç Yiğitbaş

Öz

One of the largest earthquakes hits the Kahramanmaraş region and caused a major disaster. Numerous papers based on satellite data and computer modeling have since been published, but the models commonly contradict each other.

A long time has passed since then, and the primary purpose of this publication is now to view the main topics, namely, the major fault zones that caused the earthquakes and the tectonic regimes that generated them, based primarily on the field data that has long been ignored.

The faults that affected the February 6 Kahramanmaraş earthquakes are extensions of the regional-scale strike-slip faults known from Anatolia and its surroundings. These include the East Anatolian Transform Fault, the Dead Sea Transform Fault, the Antakya Transform Fault, the Sarız-Saimbeyli Mega Shear Zone, the faults of the Foreland Fold-Thrust Belt, and the Karasu Graben boundary faults. The interactions among these faults appear to have increased the magnitude of the earthquakes.

Anahtar Kelimeler

Strike-slip faults, Kahramanmaraş Earthquakes, Triple junctions

2023 Kahramanmaraş Deprem Fayları üzerinde Gözlemler ve Değerlendirmeler / Field Data and Some Thoughts on the 2023 Kahramanmaraş Earthquakes Faults

Öz

Kara alanlarında etkili en büyük depremlerden biri bir deprem çifti olarak (6 Şubat 2023; Kahramanmaraş Mw:7,8 ve Ekinözü Mw:7,6) Kahramanmaraş çevresini vurmuş ve büyük bir felakete neden olmuştur. Depremlerin ardından uydu kaynaklı verilere ve bilgisayar modellemelerine yaslı çok sayıda yayın yapılmıştır. Bu modeller ise çoğunlukla birbirleriyle çelişmektedir.

Üzerinden uzunca bir süre geçtikten sonra depremlere yol açan ana fay sistemlerine ve bunlara yol açan tektonik rejimlerin neler olduğu konusuna saha bazlı verilerin ışığında yeni bir bakış açısıyla bakmanın yararlı ve gerekli olduğu düşüncesi bu yayının başlıca kaynağı olmuştur.

6 Şubat 2023 Kahramanmaraş depremlerine etkileri olan faylar, Anadolu ve çevresinde bilinen bölgesel ölçekli yanal atımlı büyük şu fayların bu bölgeye olan uzantılarıdır; Doğu Anadolu Transform Fayı, Ölü Deniz Transform Fayı, Antakya Transform Fayı, Sarız-Saimbeyli Mega Makaslama Zonu fayları, Önülke Kıvrım-Şaryaj Kuşağı fayları ve Karasu Grabeni’nin sınır fayları. Bu fayların etkileşimlerinin depremlerin büyüklüğünü arttırdığı anlaşılmaktadır.

Anahtar Kelimeler

Doğrultu Atımlı Faylar, Üçlü Kavşak, Kahramanmaraş Depremleri

Kaynakça

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