Results 11 to 20 of about 1,989 (209)
MODELLING OF POSTSEISMIC PROCESSES IN SUBDUCTION ZONES
Геодинамика и тектонофизика, 2015 Large intraplate subduction earthquakes are generally accompanied by prolonged and intense postseismic anomalies. In the present work, viscoelastic relaxation in the upper mantle and the asthenosphere is considered as a main mechanism responsible for the
Irina S. Vladimirova
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Postseismic deformation following the 1991 Racha, Georgia, earthquake [PDF]
Geophysical Research Letters, 2007 The 1991, Ms = 7.0 Racha earthquake is the largest ever recorded in the Caucasus Mountains. Approximately three months after this thrust‐faulting earthquake, a GPS network was set up to measure postseismic surface deformation. We present an analysis of these data, which indicate accelerated postseismic motions at several near‐field sites. We model this
Podgorski, J. +8 more
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Omori‐like decay of postseismic velocities following continental earthquakes [PDF]
Geophysical Research Letters, 2017 Various mechanisms have been proposed to explain the transient, enhanced surface deformation rates following earthquakes. Unfortunately, these different mechanisms can produce very similar surface deformation patterns leading to difficulty in ...
T. Ingleby, T. J. Wright
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Interplate rheological contrast revealed by asymmetric deformation after the 2023 Kahramanmaraş earthquakes [PDF]
Nature CommunicationsPostseismic surface deformation offers key insights into subsurface lithospheric rheology and earthquake fault behavior, yet geodetic data often fail to capture its full complexity.
Jihong Liu +4 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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Mechanics of coseismic and postseismic acceleration of active landslides
Communications Earth & Environment, 2023 Active slow-moving landslides exhibit very different coseismic and postseismic behaviour. Whereas some landslides do not show any postseismic acceleration, there are many that experience an increased motion in the days to weeks following an earthquake ...
Marc Kohler, Alexander M. Puzrin
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Pore-pressure diffusion controls upper-plate aftershocks of the 2014 Iquique earthquake [PDF]
Nature CommunicationsUpper-plate aftershocks following megathrust earthquakes are particularly dangerous as they may occur close to densely populated regions. Aftershock numbers decay with time, imposing a time-dependent seismic hazard that is assessed with statistical ...
Carlos Peña +7 more
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Geodesy and Geodynamics, 2016 On 3 July 2015, a Mw 6.4 earthquake occurred on a blind fault struck Pishan, Xinjiang, China. By combining Crustal Movement Observation Network of China (CMONOC) and other Static Global Positioning System (GPS) sites surrounding Pishan region, it ...
Ping He +4 more
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Global postseismic deformation: Deep earthquakes
Journal of Geophysical Research: Solid Earth, 2000 We study the global viscoelastic deformations associated with a shear dislocation on a fault embedded in a viscoelastic mantle. To address this problem, we extend the theory of the quasi‐static deformations of a Maxwell, spherical, N‐layer incompressible Earth, previously limited to the modeling of the effects of earthquakes occurring only within the ...
L. Boschi, A. Piersanti, SPADA, GIORGIO
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Geophysical Research LettersUnraveling the surface deformation and fault kinematics during the seismic cycle is crucial for understanding earthquake physics. Herein, we use geodetic and seismic observations to quantify the interseismic coupling, coseismic rupture, and postseismic ...
Yang Xiao +8 more
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