Results 31 to 40 of about 264 (129)

Transient Deformation and Stress Patterns Induced by the 2010 Maule Earthquake in the Illapel Segment

open access: yesFrontiers in Earth Science, 2021
Evaluating the transfer of stresses from megathrust earthquakes to adjacent segments is fundamental to assess seismic hazard. Here, we use a 3D forward model as well as GPS and seismic data to investigate the transient deformation and Coulomb Failure ...
Carlos Peña   +8 more
doaj   +1 more source

Postseismic deformation and the strength of ductile shear zones [PDF]

open access: yesEarth, Planets and Space, 2014
A good understanding of the rheology and strength of the whole crust is needed to obtain a physics-based earthquake prediction models. However, geodynamics-based and laboratory-based strength estimates disagree. Geodynamics tend to indicate that the actual strength of the plastic crust is less than deduced from laboratory experiments.
openaire   +1 more source

Probing time-dependent afterslip and viscoelastic relaxation following the 2015 Mw7.8 Gorkha earthquake based on the 3-D finite-element model

open access: yesEarth, Planets and Space, 2020
We analyzed daily displacement time series from 34 continuous GPS stations in Nepal and 5 continuous GPS stations in South Tibet, China, and extracted the first 4.8 years of postseismic motion after the 2015 Mw7.8 Gorkha earthquake.
Lina Su   +4 more
doaj   +1 more source

Months‐Long Crustal Deformation Driven by Aseismic Slips and Pore Pressure Transients Triggered by Local and Regional Earthquakes

open access: yesGeophysical Research Letters, 2021
Strong strain and pore pressure changes are observed after three Mw 4.5+ local and one Mw 7.2 regional earthquake during 2010–2017 in borehole strainmeters near Anza, California.
Zhou Lu, Lianxing Wen
doaj   +1 more source

A hybrid spectral and finite element method for coseismic and postseismic deformation

open access: yesPhysics of the Earth and Planetary Interiors, 2007
Abstract We investigate the elastic and viscoelastic responses of the Earth to a sudden slip along a fault. Firstly, equations describing the Earth’s infinitesimal deformations for elastic and viscoelastic rheological models are introduced within the weak formulation and the theorems of existence and uniqueness of solutions are demonstrated.
Pergler, Tomáš, Matyska, Ctirad
openaire   +2 more sources

GRACE detects coseismic and postseismic deformation from the Sumatra‐Andaman earthquake [PDF]

open access: yesGeophysical Research Letters, 2007
We show that spherical harmonic (SH) solutions of the Gravity Recovery and Climate Experiment (GRACE) are now of sufficient quality to observe effects of co‐seismic and post‐seismic deformation due to the rupture from the Mw = 9.3 Sumatra‐Andaman earthquake on December 26, 2004, and its companion Nias earthquake (Mw = 8.7) on March 28, 2005.
Chen, J.   +3 more
openaire   +3 more sources

Coseismic and Postseismic Crustal Deformation Associated With the 2016 Kumamoto Earthquake Sequence Revealed by PALSAR‐2 Pixel Tracking and InSAR

open access: yesEarth and Space Science, 2020
Coseismic and postseismic crustal deformations caused by earthquake episodes are important in understanding the mechanisms of these episodes as well as the fault rheology near an epicentral area.
Yuji Himematsu, Masato Furuya
doaj   +1 more source

Co- and Postseismic Deformation of the 2020 Mw 6.3 Nima (Tibet, China) Earthquake Revealed by InSAR Observations

open access: yesRemote Sensing, 2022
On 22 July 2020, an Mw 6.3 earthquake occurred in Nima County, central Qinghai-Tibet Plateau, China. We used the synthetic aperture radar interferometry (InSAR) technique with Sentinel-1 images to retrieve the line of sight (LOS) coseismic deformation ...
Miaomiao Zhang   +8 more
doaj   +1 more source

Viscoelastic relaxation of the upper mantle and afterslip following the 2014 MW8.1 Iquique earthquake

open access: yesEarthquake Research Advances, 2021
An improved understanding of postseismic crustal deformation following large subduction earthquakes may help to better understand the rheological properties of upper mantle and the slip behavior of subduction interface.
Zhiping Hu, Yan Hu, Segun Steven Bodunde
doaj   +1 more source

Modeling Long-Term Postseismic Deformation Following the 2020 Mw 7.0 Samos Earthquake Using Campaign and Continuous GNSS Observations

open access: yesSensors
Postseismic deformation provides fundamental insights into earthquake-cycle processes, lithospheric rheology, and stress redistribution following large earthquakes.
Halil İbrahim Solak   +13 more
doaj   +1 more source

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