6 Şubat 2023 Kahramanmaraş-Ekinözü depremi (Mw 7.6) ile ilişkili Çardak Fayı yüzey kırığının tektonik jeomorfolojisi

Yıl 2023, , 7 - 22, 31.12.2023

Cihan Bayrakdar , Onur Halis , Ergin Canpolat , Mehmet Fatih Döker , Ferhat Keserci

https://doi.org/10.17211/tcd.1281680

Cited By: 7

Öz

6 Şubat 2023 saat 13:24’te moment büyüklüğü 7.6 (Mw) olan Ekinözü depremi, sol yanal atımlı
Çardak Fayı üzerinde gerçekleşmiştir. Çardak Fayı üzerinde 105 km uzunluğunda yüzey kırığı oluşturan
bu deprem, Kahramanmaraş ilinin Göksun ilçesinden doğuda Malatya ilinin Doğanşehir ilçesine
bağlı Bıçakçı’ya kadar takip edilebilmiş ve haritalanmıştır. Deprem sonucunda oluşan yüzey kırığı
üzerinde fayın karakterini yansıtan 8 metreye varan sol yanal ötelenmelerin yanı sıra 3-5 metre
düşey atımların da geliştiği saptanmıştır. Çardak Fay Zonu içerisinde yüzey kırığı ile birlikte yanal
yayılmalar, çek-ayır havzalar, fay diklikleri ve köstebek yapıları gibi yüzey deformasyonları da gelişmiştir.
Çardak Fayı’nın yüzey kırığı ilk olarak Harita Genel Müdürlüğü (HGM) tarafından deprem
sonrası çekilen hava fotoğrafları ve uydu görüntüleri ile tespit edilmiş ve sonrasında 14-20 ve 26-27
Şubat 2023 tarihleri arasında yapılan arazi çalışmaları ile teyit edilmiştir. Fayın jeomorfolojik izleri
lazermetre yardımıyla yerden, insansız hava araçları (İHA) ile havadan hassas bir şekilde ölçülerek
haritalandırılmıştır. Ayrıca çalışmada toplanan veriler coğrafi veri servisi olarak bulut ortamında
depolanarak web tabanlı haritalar (Cbskampus, 2023) ile araştırmacıların kullanımına sunulmuştur.

Anahtar Kelimeler

Çardak Fayı, Yüzey kırığı, Tektonik jeomorfoloji, Web tabanlı haritalama, İHA

Destekleyen Kurum

Bu çalışma TÜBİTAK 1002-C Doğal Afetler Odaklı Saha Çalışması Acil Destek Programı kapsamında desteklenmiştir.

Teşekkür

Bu çalışma TÜBİTAK 1002-C Doğal Afetler Odaklı Saha Çalışması Acil Destek Programı kapsamında desteklenmiştir. Arazi çalışmaları sırasında verdiği desteklerden dolayı Onur Yasan’a ve Göksun’da proje ekibini evinde misafir eden Mustafa Kızılırmak’a çok teşekkür ederiz.

Tectonic geomorphology of the Çardak Fault surface rupture associated with the February 6, 2023 Kahramanmaraş-Ekinözü earthquake (Mw 7.6)

Öz

On February 6, 2023 at 13:24, an earthquake with a moment magnitude of 7.6 (Mw) occurred
on the left-lateral strike-slip Çardak Fault. This earthquake, which created a 105 km long surface
rupture on the Çardak Fault, could be traced and mapped from Göksun district of Kahramanmaraş
province to Bıçakçı in Doğanşehir district of Malatya province in the east. The surface rupture
produced left-lateral offsets of up to 8 meters and vertical displacements of 3-5 meters, which
reflect the character of the fault. Within the Çardak Fault zone, surface deformations such as
lateral spreads, pull-apart basins, fault scarps, and mole tracks also developed. The surface
rupture of the Çardak Fault was firstly detected by the General Directorate of Mapping (GGM)
with aerial photographs and satellite images taken after the earthquake and then confirmed by
field works conducted between February 14-20 and 26-27, 2023. The geomorphologic traces
of the fault were precisely measured and mapped from the ground with laser meters and from
the air with unmanned aerial vehicles (UAVs). In addition, the data collected in the study were
stored in the cloud environment as a geographic data service and made available to researchers
with web-based maps (Cbskampus, 2023).

Anahtar Kelimeler

Çardak Fault, Surface rupture, Tectonic geomorphology, Web-based mapping, UAV

Kaynakça

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