Results 21 to 30 of about 319 (157)
Co- and post-seismic slip analysis of the 2017 MW7.3 Sarpol Zahab earthquake using Sentinel-1 data
Geodesy 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
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Afterslip and aftershocks in the rate‐and‐state friction law [PDF]
Journal of Geophysical Research: Solid Earth, 2009 We study how a stress perturbation generated by a main shock affects a fault obeying the rate‐state friction law using a simple slider block system. Depending on the model parameters and on the initial stress, the fault exhibits aftershocks, slow earthquakes, or decaying afterslip. We found several regimes with slip rate decaying as a power law of time,
Helmstetter, Agnès, Shaw, Bruce
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Earth, 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
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Rapid afterslip following the 1999 Chi‐Chi, Taiwan Earthquake [PDF]
Geophysical Research Letters, 2002 Postseismic displacements of as much as 14 cm were recorded by GPS measurements in the 3 months following the MW 7.6 1999 Chi‐Chi, Taiwan earthquake. Data from 35 continuous and 90 campaign‐surveyed stations, which show continued east over west thrusting, are analyzed to estimate the postseismic slip distribution and fault geometry.
Ya‐Ju Hsu +5 more
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A Model of Aftershock Migration Driven by Afterslip
Geophysical Research Letters, 2018 AbstractAftershocks region have been extensively reported to expand logarithmically with time. The associated migration velocity is typically of the order of several km/decade but can be much larger, especially when observing early aftershock sequences, seismic swarms, or tremors.
H. Perfettini +3 more
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Modeling afterslip and aftershocks following the 1992 Landers earthquake [PDF]
Journal of Geophysical Research: Solid Earth, 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 models constrained from seismology and geodesy.
Perfettini, H., Avouac, Jean-Philippe
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Afterslip of the 2010 Chilean earthquake
Geophysical 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
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Dizhen 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
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Remote Sensing, 2016 The 28 August 2009 Mw 6.3 Dachaidan (DCD) earthquake occurred at the Qaidam Basin’s northern side. To explain its postseismic deformation time series, the method of modeling them with a combination model of afterslip and viscoelastic relaxation is ...
Yang Liu +5 more
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Rupture and Afterslip Controlled by Spontaneous Local Fluid Flow in Crustal Rock
Journal 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
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