Results 61 to 70 of about 7,164 (223)

Focal Mechanism and Regional Fault Activity Analysis of 2022 Luding Strong Earthquake Constraint by InSAR and Its Inversion

Remote Sensing, 2023
On 5 September 2022, an Ms6.8 magnitude earthquake occurred in Luding County, Sichuan Province, China. Based on Sentinel-1 SAR images, this paper uses the D-InSAR approach to obtain the displacement field of the earthquake, invert the coseismic sliding ...
Wenshu Peng, Xuri Huang, Zegen Wang
doaj   +1 more source

Core-mantle boundary deformations and J2 variations resulting from the 2004 Sumatra earthquake

, 2007
The deformation at the core-mantle boundary produced by the 2004 Sumatra earthquake is investigated by means of a semi-analytic theoretical model of global coseismic and postseismic deformation, predicting a millimetric coseismic perturbation over a ...
A. Piersanti, Alfonsi, Banerjee, Bloxham, Boschi, Boschi, Chao, Chao, Cheng, Cox, D. Melini, Dumberry, Dumberry, Dziewonski, Dziewonski, F. Florindo, Florindo, Florindo, Gross, Lambeck, Marquart, Mitrovica, Nostro, P. De Michelis, Park, Piersanti, Piersanti, Pollitz, Sabadini, Tsai, V. Cannelli   +30 more
core   +1 more source

Frictional Heterogeneity Governs Slip Partitioning and Seismic Hazard in the 2023 Turkey Earthquake Doublet

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Quantifying fault frictional properties is fundamental to understanding slip behavior and seismic hazard. We analyze 2 years of Sentinel‐1 SAR data following the 2023 Turkey earthquake doublet using Independent Component Analysis‐enhanced Small Baseline Subset‐InSAR, to resolve postseismic deformation and invert for afterslip on the East ...
Jianlong Chen, Peizhen Zhang, Xin Qiao, Zicheng Huang, Lejun Lu   +4 more
wiley   +1 more source

Injection Induced Seismicity in Complex Fault Zone Architecture

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Modeling of injection‐induced seismicity plays a significant role in understanding the seismic risks associated with different anthropogenic activities including sub‐surface energy harvesting and CO2 ${\text{CO}}_{2}$ sequestration. Here we investigate multi‐cycle modeling of induced seismicity in a complex fault zone hosting a primary fault ...
Md Shumon Mia, Mohamed Abdelmeguid, Ahmed Elbanna   +2 more
wiley   +1 more source

A Transient in Surface Motions Dominated by Deep Afterslip Subsequent to a Shallow Supershear Earthquake: The 2018 Mw7.5 Palu Case

Geochemistry, Geophysics, Geosystems, 2021
The 2018 Mw7.5 Palu earthquake is a remarkable strike‐slip event due to its nature as a shallow supershear fault rupture across several segments and a destructive tsunami that followed coseismic deformation. GPS offsets in the wake of the 2018 earthquake
N. Nijholt, W. J. F. Simons, J. Efendi, D. A. Sarsito, R. E. M. Riva   +4 more
doaj   +1 more source

Stress buildup in the Himalaya [PDF]

, 2004
The seismic cycle on a major fault involves long periods of elastic strain and stress accumulation, driven by aseismic ductile deformation at depth, ultimately released by sudden fault slip events. Coseismic slip distributions are generally heterogeneous
Avouac, J. P., Bollinger, L., Cattin, R., Pandey, M. R.   +3 more
core   +1 more source

Holistic Retrieval of Absolute Coseismic Displacement Fields From Single Interferograms via Physics‐Aware GANs

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract The efficacy of rapid seismic response is fundamentally constrained by the sequential, multi‐step nature of conventional InSAR processing, where error propagation and reliance on auxiliary data hinder automation. Here, we present a holistic framework using Physics‐Aware Generative Adversarial Networks (GANs) to directly retrieve absolute ...
Chuanhua Zhu, Jiaqiao Gan, Zuqi Lan, Chisheng Wang   +3 more
wiley   +1 more source

Factors influencing the effectiveness of SM-VCE method in solving 3D surface deformation

Geodesy and Geodynamics
The recovery of coseismic 3-dimensional (3D) surface deformation field plays a crucial role in studying seismic source characteristics and earthquake hazards. As of now, there are two main types of methods for recovering coseismic 3D surface deformations:
Xupeng Liu, Guangyu Xu, Mingkai Chen, Tengxu Zhang   +3 more
doaj   +1 more source

Triggered slip on multifaults after the 2018 Mw 6.4 Hualien earthquake by continuous GPS and InSAR measurements

Terrestrial, Atmospheric and Oceanic Sciences, 2019
On 6 February 2018 at 23:50 local time, a Mw 6.4 earthquake struck eastern Taiwan. We characterize the instantaneous surface ground motion and the permanent displacement induced by this event from continuous GPS data and SAR images within a short time ...
Hsin Tung, Horng-Yue Chen, Ya-Ju Hsu, Jyr-Ching Hu, Yo-Ho Chang, Yu-Ting Kuo   +5 more
doaj   +1 more source

Coseismic Deformation Field and Fault Slip Distribution Inversion of the 2020 Jiashi Ms 6.4 Earthquake: Considering the Atmospheric Effect with Sentinel-1 Data Interferometry

Sensors, 2023
Due to some limitations associated with the atmospheric residual phase in Sentinel-1 data interferometry during the Jiashi earthquake, the detailed spatial distribution of the line-of-sight (LOS) surface deformation field is still not fully understood ...
Xuedong Zhang, Jiaojie Li, Xianglei Liu, Ziqi Li, Nilufar Adil   +4 more
doaj   +1 more source