Preliminary Investigation on the Surface Ruptures of the Turkey M7.8 Earthquake on February 6, 2023

被引：0
|
作者：
Feng J. [1 ]
Yan J. [1 ]
Zhao X. [1 ]
机构：
[1] National Earthquake Response Service, Beijing
来源：
Beijing Daxue Xuebao (Ziran Kexue Ban)/Acta Scientiarum Naturalium Universitatis Pekinensis | 2023年 / 59卷 / 06期
关键词：
coseismic displacement; East Anatolia Fault Zone; M7.8 earthquake in Turkey; surface rupture;
D O I：
10.13209/j.0479-8023.2023.081
中图分类号：
学科分类号：
摘要：
Two M7.8 earthquakes struck southern and central Turkey on February 6, 2023, forming typical surface ruptures in Hatay Province. Earthquake surface raptures geometry and displacement characteristics were investigated in Karatas and Hassa regions. Preliminary results show that the rupture with strike of N5°E–N20°E extends over 40 km. Left-lateral strike-slip faulting developed with an average horizontal displacement of 50–60 cm and maximum horizontal displacement of 2 m. The earthquake development started on Narlı Fault, transferred to the main fault and propagated to south and north across the main fault of East Anatolian Fault Zone, which lead to the decreasing of the horizontal coseismic displacement in research area. © 2023 Peking University. All rights reserved.
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页码：945 / 950
页数：5
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共 16 条
  • [1] Guvercin S, Karabulut H, Konca A, Et al., Active seismotectonics of the East Anatolian Fault, Geophysical Journal International, 230, 1, pp. 50-69, (2022)
  • [2] M 7.8-Pazarcik earthquake, Kahramanmaras earthquake sequence [EB/OL]
  • [3] Reilinger R, McClusky S, Vernant P, Et al., GPS constraints on continental deformation in the Africa-Arabia-Eurasia continental collision zone and implications for the dynamics of plate interactions, Journal of Geophysical Research: Solid Earth, 111, (2006)
  • [4] Duman T, Emre O., The East Anatolian Fault: geometry, segmentation and jog characteristics, Geological development of anatolia and the easternmost mediterranean region, 372, pp. 495-529, (2013)
  • [5] Ambraseys N, Finkel C., The seismicity of Turkey and adjacent areas 1500–1800, (1995)
  • [6] Irmak T, Toker M, Yavuz E, Et al., New insight into the 24 January 2020, Mw 6.8 Elazığ earthquake (Turkey): an evidence for rupture-parallel pull-apart basin activation along the East Anatolian Fault Zone constrained by Geodetic and Seismological data, Annals of geophysics, 64, pp. 1-13, (2021)
  • [7] Konca A, Karabulut H, Guvercin S, Et al., From inter-seismic deformation with near-repeating earthquakes to co-seismic rupture: a unified view of the 2020 Mw 6.8 Sivrice (Elazığ) eastern Turkey earthquake, Journal of Geophysical Research: Solid Earth, 126, (2021)
  • [8] Tan O, Tapirdamaz M, Yoruk A., The earthquake catalogues for Turkey, Turkish Journal of Earth Science, 17, pp. 405-418, (2008)
  • [9] Ambraseys N., Temporary seismic quiescence: SE Turkey, Geophysical Journal International, 96, pp. 311-331, (1989)
  • [10] Karabulut H, Guvercin S, Hollingsworth J, Et al., Long silence on the East Anatolian Fault Zone (Southern Turkey) ends with devastating double earthquakes (6 February, 2023) over a seismic gap: implications for the seismic potential in the Eastern Mediterranean region, Journal of the Geological Society, 180, 3, pp. 1-10, (2023)
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