Dynamic Rupture Modeling and Ground-Motion Simulations of the 2022 6.6 Luding Earthquake

Yuhao Gu1; Zhenguo Zhang1,2,3; Wenqiang Wang1; Zhongqiu He1

2023-12

10.1785/0220230110

Seismological Research Letters   影响因子和分区

0895-0695

1938-2057

The 2022 Mw 6.6 Luding earthquake occurred on the Xianshuihe fault, one of China's most active faults. Revealing the rupture process of the Luding earthquake and exploring the distribution of high intensities is important for earthquake hazard reduction around the active Xianshuihe fault in the future. Therefore, we modeled the dynamic rupture and ground motions of the Luding earthquake. The dynamic rupture modeling demonstrates that the maximum slip of the fault plane is similar to 1.34 m, and the groundmotion simulations show the highest intensity attained is IX. In addition, we conducted a comparative analysis between synthetic data and station observation records, illustrating that our simulation results are compatible with the seismic station observations. We investigated the influence of geometric complexities on the Xianshuihe fault rupture and found that varying the dip angle of the southern segment may lead to premature rupture termination and constrain the rupture propagation. Our study provides insights into the complex geometry's effect on the physical process of large earthquakes on the Xianshuihe fault.

SCI

英语

第一 ; 通讯

Shenzhen Science and Technology Program[GML2019ZD0203] ; Center for Computational Science and Engineering at the Southern University of Science and Technology[KQTD20170810111725321]

Geochemistry & Geophysics

Geochemistry & Geophysics

WOS:001102390700003

SEISMOLOGICAL SOC AMER

GEOSCIENCES

人工提交

正式出版

1.Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, China
2.Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology, Southern University of Science and Technology, Shenzhen, China;
3.Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China

Yuhao Gu,Zhenguo Zhang,Wenqiang Wang,et al. Dynamic Rupture Modeling and Ground-Motion Simulations of the 2022 6.6 Luding Earthquake[J]. Seismological Research Letters,2023,94(6):2575–2585.

Yuhao Gu,Zhenguo Zhang,Wenqiang Wang,&Zhongqiu He.(2023).Dynamic Rupture Modeling and Ground-Motion Simulations of the 2022 6.6 Luding Earthquake.Seismological Research Letters,94(6),2575–2585.

Yuhao Gu,et al."Dynamic Rupture Modeling and Ground-Motion Simulations of the 2022 6.6 Luding Earthquake".Seismological Research Letters 94.6(2023):2575–2585.