Fakültemiz Jeofizik Mühendisliği Bölümü Öğretim Üyelerinden Prof. Dr. Tuncay Taymaz ve Arş. Gör. Ceyhun Erman'ın 6 Şubat 2023 tarihinde Nurdağı-Pazarcık (Kahramanmaraş) bölgesinde meydana gelen, büyük hasarlara ve can kayıplarına sebep olan ve ulusal ekonomimize yıkıcı etkileri olan depremler hakkındaki oldukça ayrıntılı Deprem Kaynak Sismolojisi alanındaki makalesi Dünyanın En Saygın Bilim Dergisi olarak kabul edilen SCIENCE dergisinde yayınlanmıştır.
MAKALE ADI: Supershear Triggering and Cascading Fault Ruptures of the 2023 Kahramanmaraş, Türkiye, Earthquake Doublet
YAZARLAR: Chunmei Ren, Zexin Wang, Tuncay Taymaz, Nan Hu, Heng Luo, Zeyan Zhao, Han Yue, Xiaodong Song, Zhengkang Shen, Haoyu Xu, Jianghui Geng, Wei Zhang, Teng Wang, Zengxi Ge, T. Serkan Irmak, Ceyhun Erman, Yijian Zhou, Zhen Li, Hang Xu, Bonan Cao, Hongyang Ding
YAYIN BİLGİSİ: AAAS Science Magazine Volume 383 | Issue 6680 | pp. 305-311 | 19 January 2024 | DOI: 10.1126/science.adi1519 | https://lnkd.in/dmSwtAXT
SCIENCE Received 15 April 2023, Revised 28 November 2023, Accepted 5 December 2023, Published Online 19 January 2024.
ÖZET — On 6 February 2023, two large earthquakes (moment magnitude 7.8 and 7.6) shocked a vast area of southeastern Türkiye and northern Syria, leading to heavy casualties and economic loss. To investigate the rupture process over multiple fault segments, we performed a comprehensive analysis of local seismic and geodetic data and determined supershear ruptures on the initial branch and the Pazarcık and Erkenek segments and subshear ruptures on the Amanos segment of event 1. The bilateral rupture of event 2 also presents distinct sub- and supershear velocities. The dynamic stress of the branch fault rupture triggered the Pazarcık segment initial rupture at a point 9 kilometers west of the junction of these two faults, boosting the supershear rupture of the Pazarcık segment of the main fault. The geometry and prestress level of multiple segments controlled the rupture behaviors and influenced the ground shaking intensity.
SCIENCE EDİTÖR YORUMU — In this study authors used an array of geophysical observations to determine how rupture propagated along the complex series of faults. The rupture speed was faster than the shear wave velocity at times, a condition called supershear. The authors pieced together some of the underlying physics behind this complex earthquake, helping us better understand the rupture process and subsequent ground shaking. — Brent Grocholski
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Yazarlar soldan sağa:
(Ön sıra) Zhengkang Shen, Han Yue, Haoyu Xu, Heng Luo, Zexin Wang, Chunmei Ren, Nan Hu, Zeyan Zhao, Xiaodong Song, Tuncay Taymaz;
(Arka sıra) T. Serkan Irmak, Jianghui Geng, Zhen Li, Bonan Cao, Hang Xu, Hongyang Ding, Yijian Zhou, Zengxi Ge, Teng Wang, Wei Zhang, Ceyhun Erman