Results 31 to 40 of about 1,946,675 (274)
Temporal variation of shear-wave splitting parameters before and after the 2008 Movri Mountain earthquake in northwest Peloponnese (Greece) [PDF]
, 2013 On June 8, 2008, at 12:25 GMT, a Mw 6.4 earthquake, the Movri Mountain earthquake, occurred in the area of northwest Peloponnese, western Greece. The epicenter was located in the municipality of Movri, 35 km southwest of Patras. For this study, a crustal
Lois Athanasios +4 more
core +1 more source
Observations of stress relaxation before earthquakes [PDF]
, 2004 Theory and observations suggest that seismic shear wave splitting, caused by fluid-saturated stress-aligned microcracks, directly monitors low-level deformation before fracturing, faulting and earthquakes occur.
Gao, Yuan, Crampin, Stuart
core +1 more source
Seismic anisotropy beneath the Chinese Mainland: Constraints from shear wave splitting analyses
Earthquake Research Advances, 2021 We use earthquakes recorded by the China National Seismic Network from 2015 to 2019 and measure shear wave splitting parameters of SKS to study the anisotropic characteristics beneath the mainland of China.
Lingxia Gao, Daoyuan Sun
doaj +1 more source
Shear-wave splitting in the mantle of the pacific [PDF]
Geophysical Journal International, 1994 SUMMARY The bulk of previously known data on seismic anisotropy in the suboceanic mantle was obtained from observations of azimuthal variations of the surface-wave and P, velocities. Our study of azimuthal anisotropy in the mantle of the Pacific is based on observations of shear-wave splitting. The idea of our method of measurement (Vinnik & Farra 1992)
Véronique Farra, Lev Vinnik
openaire +1 more source
Deformation in Rutford Ice Stream, West Antarctica: measuring shear-wave anisotropy from icequakes [PDF]
, 2013 Ice streams provide major drainage pathways for the Antarctic ice sheet. The stress distribution and style of flow in such ice streams produce elastic and rheological anisotropy, which informs ice-flow modelling as to how ice masses respond to external
Baird, A.F. +15 more
core +1 more source
Geodesy and Geodynamics, 2018 The upper crustal anisotropy of Yunnan area, SE margin of Tibetan Plateau, is investigated by measuring the shear wave splitting of local earthquakes.
Bo Zhang +3 more
doaj +1 more source
Symmetry-Driven Unconventional Magnetoelectric Coupling in Perovskite Altermagnets: From Bulk to the Two-Dimensional Limit. [PDF]
Adv Sci (Weinh)The symmetry‐driven coexistence of altermagnetism and (anti)ferroelectricity in perovskites shows a strong dimensional dependence. Upon reducing the system from bulk to the two‐dimensional limit, only C‐type antiferromagnetic order retains ferroelectrically switchable altermagnetism, whereas A‐ and G‐type orders become conventional antiferromagnets ...
Cui Z +6 more
europepmc +2 more sources
New “Fresnel‐Zone” estimates for shear‐wave splitting observations from finite‐difference modeling
Geophysical Research Letters, 2000 We employ full finite‐difference modeling to study effects of teleseismic shear‐wave splitting in 2D upper‐mantle models with lateral variations of anisotropy. In our models the anisotropy is confined to a layer at variable depth within the top 550 km of
Georg Rümpker, Trond Ryberg
doaj +1 more source
Deriving micro- to macro-scale seismic velocities from ice-core c axis orientations [PDF]
The Cryosphere, 2018 One of the great challenges in glaciology is the ability to estimate the bulk ice anisotropy in ice sheets and glaciers, which is needed to improve our understanding of ice-sheet dynamics.
J. Kerch +6 more
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Cejing jishu, 2023 The wave field data which is monitored the fracturing crack by micro seismic in the well is complex, especially when the shear wave (S-wave) encounters the fracture. The shear wave will split into the fast or slow wave. The polarization directions of the
WEN Rou +5 more
doaj +1 more source