Results 81 to 90 of about 255 (157)
Geodesy and GeodynamicsThe shallow slip deficit (SSD) during strike-slip earthquakes raises a question of how the strain budget is accommodated over multiple cycles. However, the origin of variable SSD observed in different earthquakes is still under debate because each ...
Zhen Li, Chenglong Li, Teng Wang
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Study on deformation characteristics and dynamic cause of the Luding MS6.8 earthquake
Frontiers in Earth Science, 2023 A MS6.8 earthquake struck Luding Country in Ganzi Prefecture, Sichuan Province on 5 September 2022. The earthquake occurred on the Moxi segment of Xianshuihe fault zone (XFZ), one of the most seismically active faults in the Chinese mainland.
Zhengyi Yuan +6 more
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Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.Abstract We present high‐resolution rupture imaging of the 2025 MW 7.7 Myanmar earthquake using global teleseismic P‐waves and regional‐distance Rayleigh waves. Most radiated energy was released near the epicenter within the first 20 s, followed by bilateral rupture propagation along the central Sagaing Fault, extending ∼350 km southward and ∼100 km ...
Qiang Yao, Chunquan Yu, Min Zhou
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Earth and Space Science, Volume 12, Issue 4, April 2025.Abstract The amount and spatial distribution of surface displacement that occurs during an earthquake are critical information to the understanding of the earthquake source and rupture processes. However, the earthquake surface displacement occurs over wide regions, includes multiple components that affect the ground surface at different spatial scales,
Solène L. Antoine, Zhen Liu
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Slip Deficit Rate and Seismic Potential on Crustal Faults in Tibet
Geophysical Research Letters, Volume 52, Issue 1, 16 January 2025.Abstract Quantifying slip deficit rates on active faults in Tibet is essential for understanding fault kinematics and assessing seismic hazards, but has not been fully characterized, particularly on secondary faults. In this study, we integrate an updated interseismic Global Navigation Satellite Systems velocity field from 4,458 stations across ...
Yanchuan Li +5 more
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Coseismic Shallow Slip Deficit Accounted for by Diffuse Off‐Fault Deformation
Geophysical Research Letters, Volume 51, Issue 24, 28 December 2024.Abstract Earthquake ruptures produce fault slip and kilometer‐wide diffuse deformation of the host rocks. However, the origin of the diffuse deformation and its role in the rupture process are debated. We produce a refined slip model for the 2019 Ridgecrest, California, earthquakes, and analyze the relations between down‐dip rupture process, and ...
Solène L. Antoine +3 more
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Frontiers in Earth Science, 2023 Accurate inversion of seismic fault parameters has been a challenge in the studies of geophysical non-linear inversion problems. Many non-linear methods such as Simulated Annealing (SA), Genetic Algorithm (GA), Particle Swarm Optimization (PSO), and ...
Xibo Jin +3 more
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Geophysical Research Letters, Volume 51, Issue 21, 16 November 2024.Abstract The Ganzi‐Yushu fault (GYF) is one of the most seismically active fault systems in eastern Tibet, having experienced five M > 7.0 earthquakes over the past 300 years. Here, we use Sentinel‐1 InSAR data spanning from 2014 to 2023 to derive the interseismic velocity fields along the GYF.
Jianfeng Cai +4 more
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Dizhen xuebao, 2023 针对2011年提出的两步差法在地震微波异常提取中的不足，提出了改进两步差法，该方法通过使用层次聚类和小波分析两种算法，克服了原方法中未考虑不同地物类型引起的亮温差异、亮温背景场不够稳健等问题，从而使异常结果在空间形态和异常幅度上更加合理，并将该方法应用于2021年5月22日青海省玛多县MS7.4地震的微波异常提取。结果显示，玛多地震前三个月出现了一条长约900 km、增温幅值达12 K的NE向亮温增温条带，与2010年4月14日MS7.1玉树地震前异常特征在空间分布和演化特征上均有很高的相似性。此外 ...
Shanjun Liu +3 more
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Geophysical Research Letters, Volume 51, Issue 19, 16 October 2024.Abstract Fault slip rates estimated from geodetic data are being integrated into seismic hazard models. The standard approach requires modeling velocities and relative (micro‐)plate motions, which is challenging for fault‐based models. We present a new approach to directly invert strain rates to solve for slip rates and distributed strain ...
Jin Fang +8 more
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