Results 41 to 50 of about 415 (163)
Modeling the Contribution of Poroelastic Deformation to Postseismic Geodetic Signals
Geophysical Research Letters, 2020 AbstractTo constrain the poroelastic component of postseismic deformation, we model the subsurface hydrologic response to the Mw 7.6 subduction zone earthquake that occurred on the plate interface beneath the Nicoya peninsula in Costa Rica on 5 September 2012. The model shows that poroelastic relaxation occurs on multiple time scales and the associated
Kimberly McCormack +3 more
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COSEISMIC DEFORMATION FIELD AND FAULT SLIP DISTRIBUTION OF THE 2015 CHILE Mw8.3 EARTHQUAKE [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 On September 16, 2015, a magnitude 8.3 earthquake struck west of Illapel, Chile. We analyzed Sentinel-1A/IW InSAR data on the descending track acquired before and after the Chile Mw8.3 earthquake of 16 September 2015.
C. Qu +5 more
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Kinematic Representations of Viscoelastic Postseismic Deformation
Earth and Space ScienceAbstractFollowing large earthquakes, viscoelastic stress relaxation may contribute to postseismic deformation observed at Earth's surface. Mechanical representations of viscoelastic deformation require a constitutive relationship for the lower crust/upper mantle material where stresses are diffused and, for non‐linear rheologies, knowledge of absolute ...
John P. Loveless, Brendan J. Meade
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Geophysical Research Letters, 2023 The postseismic Global Navigation Satellite System (GNSS) time series after the 2011 Tohoku‐oki earthquake is often empirically explained by one or more logarithmic and exponential decay functions.
Sambuddha Dhar, Jun Muto
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Izmit earthquake postseismic deformation and dynamics of the North Anatolian Fault Zone [PDF]
Journal of Geophysical Research: Solid Earth, 2009 We have modeled postseismic deformation from 1999 to 2003 in the region surrounding the 1999 Izmit and Düzce earthquake ruptures, using a three‐dimensional viscoelastic finite element method. Our models confirm earlier findings that surface deformation within the first few months of the Izmit earthquake is principally due to stable frictional afterslip
Hearn, E. +3 more
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Afterslip From the 2020 M 6.5 Monte Cristo Range, Nevada Earthquake
Geophysical Research Letters, 2022 We investigate postseismic deformation following the 15 May 2020, Mw 6.5 Monte Cristo Range, Nevada earthquake using geodetic and aftershock data. Seven months of Sentinel 1‐A/B SAR images were used to model deformation as afterslip on two subparallel ...
Taha SadeghiChorsi +3 more
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Remote Sensing, 2023 On 1 December 2016, an Mw 6.2 earthquake characterized by normal faulting occurred in the highlands of the central Andes in southern Peru, marking the region’s largest shallow event.
Qingfeng Hu +3 more
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Postseismic surface deformations due to lithospheric and asthenospheric viscoelasticity
Geophysical Research Letters, 1979 This paper proposes a model for postseismic surface deformations by attributing them to lithospheric and asthenospheric viscoelasticity. The model predicts that the deformations due to lithospheric viscoelasticity depend on the decrease in the effective shear modulus acting long after the lithospheric relaxation compared to that acting immediately ...
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A global,spherical,finite-element model for postseismic deformation using ABAQUS [PDF]
, 2020 Abstract. We present a finite-element model of postseismic solid Earth deformation built in the software package ABAQUS (version 2018). The model is global and spherical, and includes self-gravitation and is built for the purpose of calculating postseismic deformation in the far-field (> ~ 300 km) of major earthquakes.
Grace A. Nield +3 more
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International Journal of Applied Earth Observations and GeoinformationLandslides represent a major type of earthquake-triggered geohazard, with their dynamic evolution influenced by the complex interaction of postseismic environmental factors.
Shuang Zhu +8 more
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