Results 111 to 120 of about 314,541 (295)
Earth, Planets and SpaceIn recent years, earth science disciplines have begun to rely heavily on geospatial data to determine crustal deformation associated with earthquakes and volcanic activity. Therefore, having adequately high-resolution data is essential. In this study, we
Yusaku Ohta, Miku Ohtate
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Intermediate depth and deep earthquakes: complexity of the Ibero-Magrhebian region [PDF]
, 2010 The Ibero-Magrhebian region is located at the plate boundary between Eurasia and Africa and it is a tectonically complex region.
Bezzeghoud, M. +4 more
core
Earthquake Risk and Earthquake Insurance
Hokengakuzasshi (JOURNAL of INSURANCE SCIENCE), 2008 地震リスクには，他のリスクと比較してさまざまな特性があり，そのために保険困難な要素が多い。これを克服するために，空間的リスクに加えて，時間的リスクを大幅に取り込むことで，リスク分散を実現しようとする。しかしこれは，保険原理の観点からは，重大な問題を含んでいる。そこで，本稿では，非常に特異な性質を有する地震保険について，保険原理に照らしながら，構造的特徴ならびに限界について考察しながら，官民役割分担のあり方について論じる。とりわけ，地震保険に見られる逆選択現象の本質を捉えつつ，その対処策として採用されている地域別料率について，過度の採用は水平的不公平を増大させる恐れがあることから，むしろ，耐震構造に対するウェイトを高めた料率設定を行うことが，契約者間の公平性に照らして望ましいことを主張する。
openaire +2 more sources
Creep properties and constitutive model of diabase in deep water conveyance tunnels
Deep Underground Science and Engineering, EarlyView.The axial and lateral creep characteristics of diabase were analyzed based on compression creep tests. The nonlinear viscoelastic‐plastic model capable of describing the whole creep process was established based on the fractional derivative and damage theories.
Zhigang Tao +5 more
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Earth, Planets and SpaceUnderstanding the rupture process of large earthquakes is critical; however, standard rupture process inversions require stabilizing constraints, which can obscure which features are genuinely required by the data.
Keisuke Yoshida, Taisuke Yamada
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Deep Underground Science and Engineering, EarlyView.The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu +4 more
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Modelling of earthquake swarms suggests magmatic fluids in the upper crust beneath the Eger Rift
Communications Earth & EnvironmentEarthquake swarms are enigmatic seismic phenomena that occur across diverse tectonic settings, from volcanic to intraplate regions, and are often associated with fluid migration, magmatic activity, or stress redistribution. The Northwest Bohemia/Vogtland
Pınar Büyükakpınar +7 more
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Deep Underground Science and Engineering, EarlyView.The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza +3 more
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Stress field in northeastern Japan and its relationship with faults of recent earthquakes
Earth, Planets and SpaceInversion tectonics, in which old normal faults act as reverse faults in current stress fields, are frequently observed in northeastern Japan (Tohoku District); however, the conditions that control these fault activities remain unclear.
Ayaka Tagami +17 more
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Applied SciencesThe eastern and southwestern sub-basins of the South China Sea (SCS) display starkly contrasting magnetic lineation patterns, yet quantitative 3-D mapping of the subsurface magnetic architecture—essential for deciphering basin evolution—remains ...
Juechang Wan, Shuling Li, Zhe Ji
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