Results 61 to 70 of about 4,929,682 (192)

Coseismic surface rupture and seismogenic background of the 1951 M 8.0 Beng Co earthquake in the central Tibetan Plateau

open access: yesDizhi lixue xuebao
Objective  The coseismic surface rupture formed by an earthquake is the most obvious geomorphological evidence of fault activity. Its spatial distribution and deformation characteristics record essential information about seismic ruptures and fault ...
LIU Fucai   +6 more
doaj   +1 more source

Surface ruptures and off-fault deformation of the October 2016 central Italy earthquakes from DInSAR data

open access: yesScientific Reports, 2022
Large magnitude earthquakes produce complex surface deformations, which are typically mapped by field geologists within the months following the mainshock. We present detailed maps of the surface deformation pattern produced by the M.
Filippo Carboni   +7 more
doaj   +1 more source

Homogeneous vs heterogeneous subduction zone models: Coseismic and postseismic deformation [PDF]

open access: yes, 2001
A finite-element model (FEM) incorporating geologic properties characteristic of a subduction zone is compared with FEMs approximating homogeneous elastic half-spaces (HEHS)s to investigate the effect of heterogeneity on coseismic and postseismic ...
Masterlark, T.   +4 more
core  

Gravity versus tectonics. The case of 2016 Amatrice and Norcia (Central Italy) earthquakes surface coseismic fractures

open access: yes, 2019
The 2016 central Apennines earthquake sequence was caused by slip on an extensional faultsystem and resulted in sizable coseismic surface deformation.
P. Milillo   +17 more
core   +1 more source

Measuring and Modeling Viscoelastic Relaxation of the Lithosphere with Application to the Northern Volcanic Zone, Iceland [PDF]

open access: yes, 2010
Viscoelastic relaxation of the stress perturbation caused by an earthquake or diking event can produce measurable ground deformation over 100 km away from the source. We consider the role of viscoelastic relaxation in two different contexts.
DiCaprio, Christopher John
core   +1 more source

Factors influencing the effectiveness of SM-VCE method in solving 3D surface deformation

open access: yesGeodesy and Geodynamics
The recovery of coseismic 3-dimensional (3D) surface deformation field plays a crucial role in studying seismic source characteristics and earthquake hazards. As of now, there are two main types of methods for recovering coseismic 3D surface deformations:
Xupeng Liu   +3 more
doaj   +1 more source

Triggered slip on multifaults after the 2018 Mw 6.4 Hualien earthquake by continuous GPS and InSAR measurements

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2019
On 6 February 2018 at 23:50 local time, a Mw 6.4 earthquake struck eastern Taiwan. We characterize the instantaneous surface ground motion and the permanent displacement induced by this event from continuous GPS data and SAR images within a short time ...
Hsin Tung   +5 more
doaj   +1 more source

Coseismic deformation obtained from surface ocean currents in a flat bottom ocean

open access: yes
Abstract Seismic tsunami sources are often inferred by inverting a combination of data from onshore and offshore instruments. However, these measurements are often geographically sparse and far from the source, leading to declining resolutions in some areas, especially near the shallower parts of the rupture.
Rodrigo Cifuentes-Lobos   +2 more
openaire   +1 more source

COSEISMIC DEFORMATION FIELD AND FAULT SLIP DISTRIBUTION OF THE 2015 CHILE Mw8.3 EARTHQUAKE [PDF]

open access: yes, 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.
G. Zhang   +5 more
core   +1 more source

Measuring Coseismic Deformation With Spaceborne Synthetic Aperture Radar: A Review [PDF]

open access: yes, 2019
In the past 25 years, space-borne Synthetic Aperture Radar imagery has become an increasingly available data source for the study of crustal deformation associated with moderate to large earthquakes (M > 4.0).
Peter Merryman Boncori, John   +2 more
core   +1 more source

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