Yao Suli, Yang Hongfeng
Department of Earth and Environmental Sciences, The Chinese University of Hong Kong, Hong Kong, China.
Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China.
Sci Adv. 2025 Jan 24;11(4):eadq0154. doi: 10.1126/sciadv.adq0154. Epub 2025 Jan 22.
Understanding and deciphering wiggles from seismograms has been a long endeavor to understand the internal structure of the Earth and to explore earthquake source properties. Here, we make an attempt to decipher the continuous rupture phases as large near-fault velocity pulses along the East Anatolian Fault in the 2023 moment magnitude () 7.8 Kahramanmaraş, Türkiye, earthquake. Through data analysis and dynamic rupture simulations, we robustly identify the transient supershear rupture on a segment with flat fault trace and rupture deceleration at fault bends. Our study highlights the complexity and superior application of near-fault data for understanding earthquake dynamics.
理解和解读地震图中的波动一直是人们长期致力于了解地球内部结构和探索震源特性的工作。在此，我们试图将2023年土耳其卡赫拉曼马拉什矩震级（Mw）7.8级地震沿东安纳托利亚断层的连续破裂阶段解读为大的近断层速度脉冲。通过数据分析和动态破裂模拟，我们有力地识别出在断层迹线平坦的地段上的瞬态超剪切破裂以及在断层弯曲处的破裂减速。我们的研究突出了近断层数据在理解地震动力学方面的复杂性和卓越应用。
