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Earthquake nucleation in the lower crust by local stress amplification [PDF]
Nature Communications, 2020 This study investigates deep intracontinental earthquakes. Based on field data from exhumed lower crustal pseudotachylytes and mylonites from Lofoten, northern Norway, the authors describe a novel model of earthquake nucleation in the lower crust as a ...
L. R. Campbell +3 more
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Earthquake Nucleation Along Faults With Heterogeneous Weakening Rate [PDF]
Geophysical Research Letters, 2021 AbstractThe transition from quasistatic slip growth to dynamic rupture propagation constitutes one possible scenario to describe earthquake nucleation. If this transition is rather well understood for homogeneous faults, how the friction properties of multiscale asperities may influence the overall stability of seismogenic faults remains largely ...
Jean-François Molinari +2 more
exaly +9 more sources
Earthquake Research AdvancesEarthquakes are caused by the rapid slip along seismogenic faults. Whether large or small, there is inevitably a certain nucleation process involved before the dynamic rupture.
Zhigang Peng, Xinglin Lei
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Frictional healing and induced earthquakes on conventionally stable faults [PDF]
Nature CommunicationsConventional studies suggest that faults in the shallow subsurface resist earthquake nucleation, because their frictional strength increases as slip accelerates (i.e., velocity-strengthening friction).
Meng Li +2 more
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Insights on earthquake nucleation revealed by numerical simulation and unsupervised machine learning of laboratory-scale earthquake [PDF]
Scientific ReportsUnderstanding earthquake nucleation is vital for predicting and mitigating seismic events, saving lives, and enhancing construction practices in earthquake-prone areas.
Sheng Hua Ye +2 more
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An electrochemical hypothesis of earthquakes exploring a theoretical link between radiated seismic energy and Pourbaix potential [PDF]
Scientific ReportsEarthquakes are measured using well-defined seismic parameters such as seismic moment ( $$M_o$$ ), moment magnitude ( $$M_w$$ ), and released elastic energy (E).
Atanu Das, Sankar Prasad Bag
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Nucleation Mechanism and Rupture Dynamics of Laboratory Earthquakes at Different Loading Rates
Applied Sciences, 2023 The loading rate of tectonic stress is not constant during long-term geotectonic activity and significantly affects the earthquake nucleation and fault rupture process. However, the mechanism underlying the loading rate effect is still unclear.
Gongcheng Wu +3 more
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Frontiers in Earth Science, 2023 Capturing and quantifying the timing of remotely triggered earthquakes and understanding the physical processes responsible for this delay represent major challenges in earthquake forecasting.
Alexandre Canitano
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Dynamic nucleation as a cascade-up of earthquakes depending on rupture propagation velocity
Earth, Planets and Space, 2023 Earthquake dynamic rupture requires a nucleation process to provide sufficient energy to overcome the fracture energy. Large earthquakes may occur via a cascading rupture process, which includes many triggering processes that cascade from small to large ...
Kansuke Uemura, Satoshi Ide, Hideo Aochi
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Geophysical Research Letters, 2023 Deterministic earthquake prediction remains elusive, but time‐dependent probabilistic seismicity forecasting seems within reach thanks to the development of physics‐based models relating seismicity to stress changes. Difficulties include constraining the
Mateo Acosta +5 more
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