Results 121 to 130 of about 9,156,461 (162)

Electrokinetic effect combined with surface-charge assumption: a possible generation mechanism of coseismic EM signals [PDF]

Geophysical Journal International, 2014
Hengxin Ren, Jian Wen, Qinghua Huang, Xiaofei Chen   +3 more
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Effects of slope instability on coseismic landslide susceptibility during earthquakes

Effects of slope instability on coseismic landslide susceptibility during earthquakes
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Coseismic electromagnetic field due to the electrokinetic effect

Geophysics, 2014
ABSTRACT In the earth’s crust, an electromagnetic (EM) field may be generated spontaneously by a seismic wave through a variety of mechanoelectromagnetic transducer mechanisms, such as the piezomagnetic effect, the piezoelectric effect, the electrokinetic effect, and the EM induction (the movement of an electrically conducting crust ...
Gershenzon, Naum I., Bambakidis, Gust, Ternovskiy, Igor   +2 more
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Effects of Earth’s Lateral Inhomogeneous Structures on Coseismic Gravity Changes

Pure and Applied Geophysics, 2009
Based on the perturbation method, we present a new method to study the effects of Earth’s laterally inhomogeneous structures on coseismic gravity changes caused by dislocations within a 3-D heterogeneous spherical earth model. We describe this method by six independent dislocations: A vertical strike-slip, two vertical dip-slips perpendicular to each ...
Guangyu Fu, Wenke Sun
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Effects of geological complexities on coseismic displacement: hints from 2D numerical modelling

Terra Nova, 2008
AbstractBy means of a 2D finite‐element procedure, we tested how heterogeneities at the scale of seismogenic fault affect the displacement. We defined one or more slip distributions for two typical normal‐faulting earthquakes in the Central Apennines, computed the displacement occurred within different structures including lateral heterogeneities, and ...
A. Megna, S. Barba, S. Santini, DRAGONI, MICHELE   +3 more
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Earthquake parameters and spatial distribution of coseismic effects in Southern Siberia and Mongolia

Seismic Instruments, 2013
In this work we review earthquakes that happened in Southern Siberia and Mongolia within the coordinates of 42°–62° N and 80°–124° E and first propose relationships between earthquake parameters (a surface-wave earthquake magnitude M s and an epicentral intensity(I 0) based on the MSK ...
A. V. Andreev, O. V. Lunina
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Effects of Frictional Behavior and Geometry of Subduction Fault on Coseismic Seafloor Deformation

Bulletin of the Seismological Society of America, 2008
Abstract 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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Topographic effects on coseismic gravity change for the 2011 Tohoku‐Oki earthquake and comparison with GRACE

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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Coseismic strengthening of the shallow portion of the subduction fault and its effects on wedge taper

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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Coseismic temporal changes of slip direction: The effect of absolute stress on dynamic rupture

Bulletin of the Seismological Society of America, 1998
AbstractWe 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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