Results 21 to 30 of about 1,251 (185)

Coevolving early afterslip and aftershock signatures of a San Andreas fault rupture. [PDF]

open access: yesSci Adv, 2021
Geophysical imaging unveils synchronous complexities in the subtle fast and slow fault movements following an M6 earthquake.
Jiang J, Bock Y, Klein E.
europepmc   +4 more sources

Crack model of afterslip events on shallow faults [PDF]

open access: yesInternational Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1992
SUMMARY Post-seismic evolution of surface displacement on a strike slip fault is studied employing a linear viscous rheology for the shallow fault zone. A mathematical model is built in which the singular integral equation governing the equilibrium of cracks is transformed in an infinite-dimensional linear symmetric system whose positive eigenvalues ...
Maria Elina Belardinelli   +1 more
openaire   +2 more sources

Afterslip Model Database RC2022

open access: yes, 2022
Churchill2022AfterslipDatabase.xlsx is a detailed database of aseismic afterslip models and corresponding mainshock information compiled by Robert Churchill (under the supervision of Maximilian Werner, Juliet Biggs and Åke Fagereng). This accompanies the
Biggs, Juliet   +6 more
core   +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

InSAR Constrained Downdip and Updip Afterslip Following the 2015 Nepal Earthquake: New Insights into Moment Budget of the Main Himalayan Thrust

open access: yesRemote Sensing, 2022
We use ALOS-2 and Sentinel-1 data spanning 2015–2020 to obtain the post-seismic deformation of the 2015 Mw 7.8 Nepal earthquake. ALOS-2 observations reveal that the post-seismic deformation was mainly distributed in four areas.
Lei Zhao   +5 more
doaj   +1 more source

Co- and post-seismic slip analysis of the 2017 MW7.3 Sarpol Zahab earthquake using Sentinel-1 data

open access: yesGeodesy and Geodynamics, 2022
The MW7.3 Sarpol Zahab earthquake that occurred in the Zagros Fold-Thrust Belt (ZFTB) of Iran on November 12, 2017 is the largest earthquake instrumentally recorded in the region.
Lejun Lu, Yu Zhou
doaj   +1 more source

Afterslip of the 2010 Chilean earthquake

open access: yesGeophysical Research Letters, 2010
Analysis of normal‐mode amplitudes excited by the Chilean earthquake of 27 February, 2010, shows that theoretical amplitudes computed for the Global Centroid Moment Tensor solution (GCMT) underestimate observation for frequencies below 1 mHz. Data are systematically larger and there is a hint that this ratio increases toward lower frequencies ...
Toshiro Tanimoto, Chen Ji
openaire   +1 more source

2010年马乌莱MW8.8地震震后形变三维黏弹性数值模拟

open access: yesDizhen xuebao, 2021
2010年智利马乌莱MW8.8地震发生在纳斯卡板块与南美板块的板块边界处,引起了显著的同震和震后效应。GPS台网数据显示记录到的同震海向位移最大约5 m,垂向沉降最大约50 cm。在经过对俯冲效应、季节变化等效应的校正后,震后6年的海向最大位移约68 cm,垂向抬升最大约20 cm。马乌莱地震显著的震后形变对该区域的地下三维黏弹性结构有良好的约束。本文建立了智利中南部俯冲带区域的三维有限元模型,黏弹性的地幔楔及海洋地幔均使用伯格斯体材料,并在断层面上设置2 km厚的软弱层以模拟震后余滑 ...
Yixing Zhang   +2 more
doaj   +1 more source

Rupture and Afterslip Controlled by Spontaneous Local Fluid Flow in Crustal Rock

open access: yesJournal of Geophysical Research: Solid Earth, 2023
AbstractShear rupture and fault slip in crystalline rocks like granite produce large dilation, impacting the spatiotemporal evolution of fluid pressure in the crust during the seismic cycle. To explore how fluid pressure variations are coupled to rock deformation and fault slip, we conducted laboratory experiments under upper crustal conditions while ...
Aben, Frans M., Brantut, Nicolas
openaire   +6 more sources

Adjoint-based direct data assimilation of GNSS time series for optimizing frictional parameters and predicting postseismic deformation following the 2003 Tokachi-oki earthquake

open access: yesEarth, Planets and Space, 2020
Postseismic Global Navigation Satellite System (GNSS) time series followed by megathrust earthquakes can be interpreted as a result of afterslip on the plate interface, especially in its early phase.
Masayuki Kano   +3 more
doaj   +1 more source

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