Results 41 to 50 of about 748 (174)

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

Refined coseismic displacement modeling for the 1994 Shikotan and Sanriku‐oki earthquakes [PDF]

Geophysical Research Letters, 1998
We consider refined modeling of GPS measurements of coseismic displacement for two large earthquakes occurring in the Japan and Kurile Trenches. Calculations are performed for a layered sphere and the homogeneous half‐space more commonly used to model such data, using fault geometry and slip distributions from previously published studies. We show that
Phil R. Cummins, Satoshi Hirano, Yoshiyuki Kaneda   +2 more
openaire   +1 more source

Constraining coseismic off-fault deformation of the 2022 MW 6.6 Menyuan earthquake using man-made linear markers

Dizhi lixue xuebao
Objective  Accurate constraints on coseismic surface displacement are essential for revealing earthquake rupture processes, assessing regional seismic hazards, and understanding the partitioning of near-surface deformation.
LIU Yulong, HAN Longfei, YAO Wenqian, LIU Jing, LI Zhenhong, SHAO Yanxiu, LIU Xiaoli, CHEN Xuan, SUN Jie, HE Liang, YIN Zilin   +10 more
doaj   +1 more source

Multi‐Hazard Shaking‐Tsunami Fatality Risk Estimation for Coastal Communities

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This study develops a multi‐hazard fatality risk model for a coastal community (Tofino) on Vancouver Island, Canada, subjected to earthquake‐tsunami threats from the Cascadia subduction megathrust events. The model incorporates variable population distributions and uncertain fatality rate models, in addition to other key model components, such
Katsuichiro Goda
wiley   +1 more source

An Improved Source Model of the 2021 $M_w$ 6.1 Yangbi Earthquake (Southwest China) Based on InSAR and BOI Datasets

Remote Sensing, 2022
The azimuth displacement derived by pixel offset tracking (POT) or multiple aperture InSAR (MAI) measurements is usually used to characterize the north-south coseismic deformation caused by large earthquakes (M > 6.5), but its application in the source ...
Hao Lu, Guangcai Feng, Lijia He, Jihong Liu, Hua Gao, Yuedong Wang, Xiongxiao Wu, Yuexin Wang, Qi An, Yingang Zhao   +9 more
doaj   +1 more source

Fault Geometry Invariance and Differentiable Ensemble Solutions for Simultaneous Fault and Slip Inversion in Heterogeneous Crustal Structures

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Fault slip inversions based on geodetic observations deepen our understanding of earthquake source processes. Previous attempts to simultaneously estimate the fault geometry and slip distribution have typically assumed a homogeneous half‐space owing to the prohibitively high computational costs of conventional numerical approaches.
Tomohisa Okazaki, Ryoichiro Agata, Masayuki Kano, Takeo Ito, Kazuro Hirahara, Naonori Ueda   +5 more
wiley   +1 more source

Linking Interseismic Locking to Coseismic Rupture: The 2025 Mw 8.8 Kamchatka Earthquake

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract We investigate interseismic locking on the Kamchatka megathrust, source of the 2025 Mw 8.8 earthquake, using a data‐driven probabilistic framework. Horizontal GNSS velocities constrain a boundary element model on a triangulated megathrust geometry, while an algorithmic sampling strategy estimates the locking probability for fault elements ...
Axel J. Periollat, Gareth J. Funning
wiley   +1 more source

Tectonic Landform and Lithologic Age Impact Uncertainties in Fault Displacement Hazard Models

Geophysical Research Letters
Tectonic landforms and surficial lithologic age are essential data for producing quality late Quaternary fault maps and predicting coseismic fault rupture location before an earthquake.
Chelsea Scott, Albert Kottke, Christopher Madugo, J. Ramon Arrowsmith, Rachel Adam, Malinda Zuckerman   +5 more
doaj   +1 more source

Study on coseismic surface deformation of the 2023 Turkey MW7.8 and MW7.5 double strong earthquakes using optical image correlation method

Dizhi lixue xuebao
Objective  On February 6, 2023, double strong earthquakes of MW7.8 and MW7.5 occurred consecutively within 10 hours in the Kahramanmaraş province in central-southern Turkey.
KANG Wenjun, XU Xiwei
doaj   +1 more source

Surface deformation induced by the 2016 Meinong earthquake and its implications to active folds

Terrestrial, Atmospheric and Oceanic Sciences, 2023
We present 230 field observations on the location, trending, and displacement vectors of the coseismic surface cracks induced by the 2016 Meinong earthquake in the Guanmiao area, SW Taiwan. Coseismic surface cracks trends from the north to northeast. The
De-Cheng Yi, Ray Y. Chuang, Ling-Ho Chung, Ching-Weei Lin, Ruey-Juin Rau   +4 more
doaj   +1 more source