Results 1 to 10 of about 9,013 (229)

Improvement on spatial resolution of a coseismic slip distribution using postseismic geodetic data through a viscoelastic inversion

open access: yesEarth, Planets and Space, 2020
Obvious crustal deformation is observed during a postseismic period as well as a coseismic period associated with a large earthquake. Major mechanisms of transient postseismic deformation are known as afterslip and viscoelastic relaxation.
Fumiaki Tomita   +5 more
doaj   +1 more source

Coseismic and postseismic fault slip characteristics of the 2020 MW6.3 Nima earthquake

open access: yes地球与行星物理论评, 2023
The 2020 MW6.3 Nima earthquake occurred in the northern Yibug Caka graben on the Qiangtang Block of the Tibetan Plateau. The epicentral area has complex geological structures, topography, and geomorphology, and there are few near-field ground observation
Yang Liu   +3 more
doaj   +1 more source

Coseismic sediment deformation during the 1989 Loma Prieta earthquake [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2008
Inelastic horizontal sediment deformation from the MS 7.1, 17 October 1989 Loma Prieta earthquake has been estimated to be on the order of 20 cm at a site in Gilroy, California, about 32 km east of the epicenter. This estimate was based on combined deterministic‐stochastic simulations using ground motion data and sediment properties measured from in ...
Borja, Ronaldo I., Sun, WaiChing
openaire   +2 more sources

DEFORMATION EXTRACTION AND ANALYSIS OF COSEISMIC DEFORMATION FIELD BASED ON D-INSAR TECHNOLOGY

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Abstract. Extracting the seismic deformation field and analyzing the surface deformation after an earthquake occurs are of great significance for explaining earthquake mechanism and earthquake relief. Through the dual polarization mode of the two-pass method D-InSAR technology, this paper extracted the coseismic deformation fields based on two Sentinel-
A. Shi   +6 more
openaire   +3 more sources

Constraints on fault and lithosphere rheology from the coseismic slip and postseismic afterslip of the 2006 M_w 7.0 Mozambique earthquake [PDF]

open access: yes, 2012
The 2006 M_w 7.0 Mozambique (Machaze) normal-faulting earthquake ruptured an unusually steeply dipping fault plane (~75°). The amount of slip in the earthquake decreased from depths of ~10 km toward the surface, and this shallow slip deficit was at least
Bergman, Eric   +2 more
core   +1 more source

Coseismic Ground Deformation Reproduced through Numerical Modeling: A Parameter Sensitivity Analysis

open access: yesGeosciences, 2019
Coseismic ground displacements detected through remote sensing surveys are often used to invert the coseismic slip distribution on geologically reliable fault planes.
Yuri Panara   +4 more
doaj   +1 more source

Persistent elastic behavior above a megathrust rupture patch: Nias island, West Sumatra [PDF]

open access: yes, 2008
We quantify fore-arc deformation using fossil reefs to test the assumption commonly made in seismic cycle models that anelastic deformation of the fore arc is negligible.
Adams   +103 more
core   +1 more source

InSAR 3-D Coseismic Displacement Field of the 2015 Mw 7.8 Nepal Earthquake: Insights into Complex Fault Kinematics during the Event

open access: yesRemote Sensing, 2020
The 2015 Mw 7.8 Gorkha, Nepal, earthquake occurred in the central Himalayan collisional orogenic belt, which demonstrated complex fault kinematics and significant surface deformation. The coseismic deformation has been well documented by previous studies
Chunyan Qu   +6 more
doaj   +1 more source

Modeling afterslip and aftershocks following the 1992 Landers earthquake [PDF]

open access: yes, 2007
One way to probe the rheology of the lithosphere and fault zones is to analyze the temporal evolution of deformation following a large earthquake. In such a case, the lithosphere responds to a known stress change that can be assessed from earthquake slip
Amelung   +70 more
core   +3 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

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