Results 31 to 40 of about 2,926 (202)

Study on coseismic surface deformation of the 2023 Turkey MW7.8 and MW7.5 double strong earthquakes using optical image correlation method [PDF]

open access: yesDizhi lixue xuebao
Objective  On February 6, 2023, double strong earthquakes of MW7.8 and MW7.5 occurred consecutively within 10 hours in the Kahramanmaraş province in central-southern Turkey.
KANG Wenjun, XU Xiwei
doaj   +2 more sources

High precision coseismic deformation monitoring method based on time-series InSAR analysis

open access: yes地球与行星物理论评, 2023
Interferometry Synthetic Aperture Radar (InSAR) technology has become an important tool for monitoring surface deformation with its all-day, all-weather ground monitoring and high spatial resolution, and has been widely applied to seismic deformation ...
Xiongxiao Wu   +3 more
doaj   +1 more source

The tunnel damage effects and implications of the coseismic rupture of the Menyuan MS 6.9 Earthquake in Qinghai, China

open access: yesDizhi lixue xuebao, 2023
On January 8, 2022, a magnitude 6.9 earthquake occurred in Menyuan County, Qinghai Province, causing severe deformation and damage to the Da Liang Tunnel of the Lanzhou–Xinjiang high-speed railway, which is the first railway tunnel project broken by ...
YAN Yuan
doaj   +1 more source

Codefmap APP: A seismic deformation simulation application based on Android system

open access: yes地球与行星物理论评, 2023
If coseismic deformation of the earthquake region can be obtained in a short time, it is important for timely evaluate the disaster and cooperate with the development of earthquake relief work.
Ruisheng Ni, Wenbin Xu
doaj   +1 more source

Afterslip From the 2020 M 6.5 Monte Cristo Range, Nevada Earthquake

open access: yesGeophysical Research Letters, 2022
We investigate postseismic deformation following the 15 May 2020, Mw 6.5 Monte Cristo Range, Nevada earthquake using geodetic and aftershock data. Seven months of Sentinel 1‐A/B SAR images were used to model deformation as afterslip on two subparallel ...
Taha SadeghiChorsi   +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

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

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

An analytical approach to estimate curvature effect of coseismic deformations [PDF]

open access: yesGeophysical Journal International, 2016
We present an analytical approach to compute the curvature effect by the new analytical solutions of coseismic deformation derived for the homogeneous sphere model. We consider two spheres with different radii: one is the same as earth and the other with a larger radius can approximate a half-space model.
Dong, J., Sun, W., Zhou, X., Wang, R.
openaire   +3 more sources

Recent Crustal Deformation in West-Central South America [PDF]

open access: yes, 2003
I use interferometric synthetic aperture radar (InSAR) to create maps of crustal deformation along the coast and within the volcanic arc of central South America. I image deformation associated with six subduction zone earthquakes, four volcanic centers,
Pritchard, Matthew Earl
core   +1 more source

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