Results 81 to 90 of about 594,765 (205)

Postseismic deformation in Chile: Constraints on the asthenospheric viscosity

Geophysical Research Letters, 1999
By means of a spherical Earth model with Maxwell rheology, an analysis of the postseismic deformation field due to the viscoelastic relaxation of the mantle and asthenosphere following the great 1960 Chile earthquake is performed. Due to the exceptional energy release of that earthquake, geomorphological evidences of postseismic deformation are ...
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Coseismic and postseismic deformation associated with the 2003 Chengkung, Taiwan, earthquake [PDF]

Geophysical Journal International, 2009
SUMMARY We use GPS-derived coseismic and postseismic displacements of the 2003 Mw 6.8 Chengkung, Taiwan, earthquake to examine seismogenic behaviour of the southern Longitudinal Valley. We invert for fault slip on the Chihshang fault, a segment of the Longitudinal Valley fault, based on a simplified layered earth model and a listric-shape fault ...
Ya-Ju Hsu, Shui-Beih Yu, Horng-Yue Chen
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Geomorphic Imprints of Coseismic Uplift: Knickpoints and Landslides on the Noto Peninsula, Japan

Earth Surface Processes and Landforms, Volume 51, Issue 10, October 2026.
River knickpoints and slow‐moving landslides show complementary spatial relationships with the vertical and horizontal deformation fields of the 2024 Mw 7.5 Noto Peninsula earthquake. Together, their distributions provide geomorphic information for evaluating cumulative landscape adjustment to repeated coseismic uplift at a regional scale.
Haruka Tsunetaka, Wataru Murakami
wiley   +1 more source

Postseismic deformation model of the 2024 Noto Peninsula earthquake, central Japan

Earth, Planets and Space
We investigated the characteristics and mechanism of postseismic deformation following the 2024 Noto Peninsula earthquake (M7.6), which occurred on January 1, 2024, in the Noto Peninsula, Japan.
Hisashi Suito
doaj   +1 more source

Automatic GNSS Coordinate Time Series Analysis for Very Large Networks

Earth and Space Science, Volume 13, Issue 10, October 2026.
Abstract We present a new algorithm, AutoCF, for automatically constructing coordinate functions (CFs) for continuously operating GNSS reference stations (CORSs). The iterative algorithm alternates between application of LASSO and Ridge Regression methods, with hyperparameters successively tightened with each iteration to more judiciously scrutinize ...
Richard A. Bennett, Phillip K. McFarland, Amy Whetter, Jordan Krcmaric   +3 more
wiley   +1 more source

Function Model Based on Nonlinear Transient Rheology of Rocks: An Analysis of Decadal GNSS Time Series After the 2011 Tohoku‐oki Earthquake

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
doaj   +1 more source

Erupted Volume During the 2014–2023 Semisopochnoi Unrest and Eruption Constrained by Multi‐Platform InSAR and Volcanic Gas Observations

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Volcano deformation data provide important constraints on magma dynamics during volcanic unrest and eruptions. From these observations, we can estimate subsurface pressure changes and relate them to volume change in the reservoir. However, because magma and rock are compressible, this volume change cannot be directly equated with eruptive ...
Mario Angarita, Valerie Wasser, Ronni Grapenthin, Allan Lerner, Taryn Lopez, Revathy M. Parameswaran, John Lyons   +6 more
wiley   +1 more source

Postseismic deformation following the April 25, 2015 Gorkha earthquake (Nepal): Afterslip versus viscous relaxation

, 2019
International audienceThe postseismic deformation consecutive to the April 25, 2015 Gorkha earthquake (Mw 7.9) is estimated in this paper based on a cGNSS network installed prior to the earthquake and supplemented by 6 cGNSS stations installed after the ...
Pecher, Arnaud, Mugnier, Jean‐louis, Gajurel, Ananta, Adhikari, Lok Bijaya, Huyghe, Pascale, Gajurel, Ananta Prasad, Cotte, Nathalie, Jouanne, François, Koirala, Bharat, Bhattarai, Roshanraj, Bascou, Pascale, Bollinger, Laurent, Mugnier, Jean-Louis   +12 more
core   +1 more source

Increased far-field landslide hazards due to postseismic acceleration by the 2017 Mw 6.4 Nyingchi earthquake

International Journal of Applied Earth Observations and Geoinformation
Landslides represent a major type of earthquake-triggered geohazard, with their dynamic evolution influenced by the complex interaction of postseismic environmental factors.
Shuang Zhu, Chuang Song, Chen Yu, Zhenhong Li, Yi Chen, Zhenjiang Liu, Kui Liu, Guangqian Zou, Jianbing Peng   +8 more
doaj   +1 more source

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 ...
openaire   +1 more source