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Effects of Frictional Behavior and Geometry of Subduction Fault on Coseismic Seafloor Deformation
Bulletin of the Seismological Society of America, 2008Abstract The seismogenic zone of subduction faults appears to have an updip limit, seaward of which the fault exhibits velocity-strengthening behavior. We use a two-dimensional finite element model including a frictional subduction fault to explore how coseismic strengthening of the updip segment affects seafloor deformation.
K. Wang, J. He
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Journal of Geophysical Research: Solid Earth, 2016
AbstractWe estimate gravity changes due to coseismic horizontal deformation and inclined bathymetry (referred to as topographic effects in this study) associated with the 2011 Tohoku‐Oki earthquake, using a layered half‐space dislocation model. As an approximation, we represent inclined topography with ramp‐body models in the near field of the ...
Li, J., Chen, J., Wilson, C.
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AbstractWe estimate gravity changes due to coseismic horizontal deformation and inclined bathymetry (referred to as topographic effects in this study) associated with the 2011 Tohoku‐Oki earthquake, using a layered half‐space dislocation model. As an approximation, we represent inclined topography with ramp‐body models in the near field of the ...
Li, J., Chen, J., Wilson, C.
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Coseismic temporal changes of slip direction: The effect of absolute stress on dynamic rupture
Bulletin of the Seismological Society of America, 1998AbstractWe investigate the dynamics of rupture at low-stress level. We show that one main difference between the dynamics of high- and low-stress events is the amount of coseismic temporal rake rotation occurring at given points on the fault. Curved striations on exposed fault surfaces and earthquake dislocation models derived from ground-motion ...
Mariagiovanna Guatteri, Paul Spudich
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Journal of Geophysical Research: Solid Earth, 2008
According to the dynamic Coulomb wedge model, coseismic strengthening of the shallowest part of the subduction interface can cause permanent deformation of the overlying outer wedge, so that the cumulative effects of great interplate earthquakes control the geometry of the wedge.
Yan Hu, Kelin Wang
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According to the dynamic Coulomb wedge model, coseismic strengthening of the shallowest part of the subduction interface can cause permanent deformation of the overlying outer wedge, so that the cumulative effects of great interplate earthquakes control the geometry of the wedge.
Yan Hu, Kelin Wang
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Coseismic effects of water temperature based on digital observation from Tayuan well, Beijing
Acta Seismologica Sinica, 2007On the basis of digital records from Tayuan well, we study coseismic effects of water temperature caused by remote earthquakes. The records show that the water temperature changes are consistently following the process of drop-rise-recovery regardless of focal mechanism or epicentral directions.
Zhu-zhuan Yang +5 more
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Russian Geology and Geophysics, 2020
Abstract —Reliable solution of theoretical and applied seismological problems requires the knowledge of natural factors that influence ground motion induced by earthquakes. The effect of seasonal freezing and thawing on the behavior of coseismic ground motion in the Baikal region has been studied using data on local geology, earthquake ...
V.I. Dzhurik +3 more
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Abstract —Reliable solution of theoretical and applied seismological problems requires the knowledge of natural factors that influence ground motion induced by earthquakes. The effect of seasonal freezing and thawing on the behavior of coseismic ground motion in the Baikal region has been studied using data on local geology, earthquake ...
V.I. Dzhurik +3 more
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Pure and Applied Geophysics, 2006
Groundwater coseismic transient anomalies are evidenced and characterized by modelling the mixing function F characteristic of the groundwater dynamics in the Ogeu (western French Pyrenees) seismic context. Investigations of water-rock interactions at Ogeu indicate that these mineral waters from sedimentary environments result from the mixing of deep ...
Toutain, Jean-Paul +6 more
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Groundwater coseismic transient anomalies are evidenced and characterized by modelling the mixing function F characteristic of the groundwater dynamics in the Ogeu (western French Pyrenees) seismic context. Investigations of water-rock interactions at Ogeu indicate that these mineral waters from sedimentary environments result from the mixing of deep ...
Toutain, Jean-Paul +6 more
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Geomorphology, 2020
Abstract Due to the influence of sampling strategy, the resulting probability of landslides using logistic regression (LR) can deviate considerably from the actual areal percentage of coseismic landslides. This study used the landslides data of the 2013 Lushan, China earthquake to further address this issue.
Xiaoyi Shao +3 more
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Abstract Due to the influence of sampling strategy, the resulting probability of landslides using logistic regression (LR) can deviate considerably from the actual areal percentage of coseismic landslides. This study used the landslides data of the 2013 Lushan, China earthquake to further address this issue.
Xiaoyi Shao +3 more
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Недропользование. Горное дело. Направления и технологии поиска, разведки и разработки месторождений полезных ископаемых. Экономика. Геоэкология: Материалы XVI международной конференции (20-24 апреля 2020, Новосибирск), 2020
The article presents the results of the analysis of magnetotelluric monitoring data of the North Tien Shan using a set of methods of geophysical monitoring systems of the Bishkek geodynamic test area. The goals, objectives and structure of the magnetotelluric monitoring system are outlined. The obtained results of the study of electrical anisotropy for
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The article presents the results of the analysis of magnetotelluric monitoring data of the North Tien Shan using a set of methods of geophysical monitoring systems of the Bishkek geodynamic test area. The goals, objectives and structure of the magnetotelluric monitoring system are outlined. The obtained results of the study of electrical anisotropy for
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Long‐ and Short‐Term Effects of Seismic Waves and Coseismic Pressure Changes on Fractured Aquifers
Journal of Geophysical Research: Solid EarthAbstract Two adjacent groundwater wells on the North China Platform are used to study how earthquakes impacted aquifers. We use the response of water level to solid Earth tides to document changes after earthquakes and how aquifer and fracture properties recovered to pre‐earthquake properties.
Yan Zhang +8 more
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