Results 1 to 10 of about 3,607,543 (264)
Role of Weak Materials in Earthquake Rupture Dynamics. [PDF]
Sci Rep, 2019 AbstractWeak materials in seismic slip zones are important in studies of earthquake mechanics. For instance, the exceptionally large slip during the 2011 Tohoku-Oki earthquake has been attributed to the presence of smectite in the fault zone. However, weak fault rocks cannot accumulate large amounts of elastic strain, which is thought to counter their ...
Hirono T, Tsuda K, Kaneki S.
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Dynamic restrengthening and fault heterogeneity explain megathrust earthquake complexity [PDF]
Nature CommunicationsMegathrusts host Earth’s largest earthquakes. Understanding the physical conditions controlling their rupture dynamics is critical for assessing seismic and tsunami hazards.
Jeremy Wing Ching Wong +2 more
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Role of fault branches in earthquake rupture dynamics [PDF]
Journal of Geophysical Research, 2007 We analyze earthquake ruptures propagating along a straight “main” fault and encountering a finite‐length branch fault. Such intersections are often observed in natural fault systems. The predicted effects of the interaction with the branch that we report can be remarkable; they can strongly perturb the propagation velocity on the main fault and, in ...
James R Rice, Harsha S Bhat
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Earth and Space Science, 2023 We simulated the rupture dynamics and ground motion of the 1850 Xichang, China, earthquake on the Zemuhe fault, which consists of the Lijinbao segment, the Dajing segment, the Chechejie segment, and the Songxin segment, with the curved grid finite ...
Houyun Yu +4 more
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Geophysical Research Letters, 2023 We considered various non‐uniformities such as branch faults, rotation of stress field directions, and changes in tectonic environments to simulate the dynamic rupture process of the 6 February 2023 Mw 7.8 Kahramanmaraş earthquake in SE Türkiye.
Zijia Wang +5 more
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Stress-mediated multi-fault rupture dynamics of the 2023 Kahramanmaraş earthquake sequence, Türkiye [PDF]
Scientific ReportsThe 2023 Kahramanmaraş (M7.8) and Elbistan (M7.6) earthquakes in Türkiye provide a profound case study in multi-fault rupture dynamics. We update a pre-existing Coulomb stress model¹ to analyse the historical and immediatestress conditions that caused ...
Süleyman S. Nalbant +4 more
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Earthquake Stress Drops From Dynamic Rupture Simulations Constrained by Observed Ground Motions
Geophysical Research Letters, 2020 Stress drop characterizing dynamics of earthquake rupture propagation has various definitions and measures with a yet unclear mutual relationship. We aim to reconcile this discrepancy by analyzing synthetic dynamic rupture models generated by random ...
F. Gallovič, Ľ. Valentová
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Geophysical Research Letters, 2018 The 2016 Kaikoura (New Zealand) earthquake is characterized as one of the most complex multifault rupture events ever observed. We perform dynamic rupture simulations to evaluate to what extent relatively simple forward models accounting for realistic ...
Ryosuke Ando, Yoshihiro Kaneko
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Earthquake Rupture Dynamics From Graph Neural Networks
Journal of Geophysical Research: Solid EarthAbstract Earthquakes arise from tectonic loading of complex fault systems consisting of heterogeneous material parameters, geometry, rheology, and prestress. All of those are subject to uncertainties, and their interactions and sensitivities for the dynamic rupture problem are incompletely understood.
Dunyu Liu, Thorsten Becker
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Geophysical Research LettersThe 2025 Mw 7.7 Myanmar earthquake ruptured the central Sagaing fault, a previously identified seismic gap with high seismic potential. Here, we perform hundreds of 3D dynamic rupture simulations to investigate the rupture dynamics, constrained by near ...
Zhongqiu He +6 more
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