Results 11 to 20 of about 415 (163)

Gravity-driven postseismic deformation following the Mw 6.3 2009 L’Aquila (Italy) earthquake [PDF]

open access: yesScientific Reports, 2015
AbstractThe present work focuses on the postseismic deformation observed in the region of L’Aquila (central Italy) following the Mw 6.3 earthquake that occurred on April 6, 2009. A new, 16-month-long dataset of COSMO-SkyMed SAR images was analysed using the Persistent Scatterer Pairs interferometric technique.
ALBANO, Matteo   +7 more
openaire   +4 more sources

Unravelling the contribution of early postseismic deformation using sub-daily GNSS positioning [PDF]

open access: yesScientific Reports, 2019
AbstractAfter large earthquakes, parts of the fault continue to slip for days to months during the afterslip phase, a behaviour documented for many earthquakes. Yet, little is known about the early stage, i.e., from minutes to hours after the mainshock.
Twardzik, Cedric   +3 more
openaire   +3 more sources

Pore-pressure diffusion controls upper-plate aftershocks of the 2014 Iquique earthquake [PDF]

open access: yesNature Communications
Upper-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
doaj   +2 more sources

Realization approach of non-linear postseismic deformation model for Taiwan semi-kinematic reference frame

open access: yesEarth, Planets and Space, 2020
Surface displacements associated with earthquake-cycle deformation of active faults significantly influence the accuracy of geodetic datum and reference frames, especially for the Taiwan area with high plate convergence and deformation rates.
Kwo-Hwa Chen   +2 more
doaj   +1 more source

ESTIMATION OF CO- AND POSTSEISMIC DEFORMATION AFTER THE Mw 8.6 NIAS-SEMEULUE AND Mw 8.5 BENGKULU EARTHQUAKES FROM CONTINUOUS GPS DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The Mw 8.5 Bengkulu earthquake of 30 September 2007 and the Mw8.6 28 March 2005 are considered amongst large earthquake ever recorded in Southeast Asia.
W. A. W. Aris, T. A. Musa, K. Omar
doaj   +1 more source

Numerical simulation of coseismic and postseismic deformation through a node-splitting algorithm: A case study of the Wenchuan earthquake

open access: yesDizhi lixue xuebao, 2021
The coseismic and postseismic effects are crucial elements in analyzing fault interactions and the regional seismic risk. In this paper, we developed a three-dimensional viscoelastic finite element code to simulate the coseismic and postseismic ...
SUN Yunqiang, LUO Gang, HUANG Luyuan
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

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

Omori-like slow decay (p < 1) of postseismic displacement rates following the 2011 Tohoku megathrust earthquake

open access: yesEarth, Planets and Space, 2020
We infer the postseismic deformation mechanisms following the 2011 Tohoku megathrust earthquake via an analysis of onshore geodetic observations. We focus on the temporal decay characteristics of postseismic deformation using continuous time-series data ...
Shunsuke Morikami, Yuta Mitsui
doaj   +1 more source

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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