Results 21 to 30 of about 2,047 (206)

Traces Of Laboratory Earthquake Nucleation In The Spectrum Of Ambient Noise. [PDF]

open access: yesSci Rep, 2018
AbstractThe short-term forecast of earthquakes associated with fault rupture is a challenge in seismology and rock mechanics. The evolution of mechanical characteristics of a local fault segment may be encoded in the ambient noise, thus, converting the ambient noise to an efficient source of information about the fault stress-strain conditions.
Kocharyan GG, Ostapchuk AA, Pavlov DV.
europepmc   +4 more sources

Effect of Fluid Viscosity on Earthquake Nucleation [PDF]

open access: yesGeophysical Research Letters, 2020
AbstractInjection of fluids in geo‐reservoirs can reduce the effective stresses at depth, lubricating the nearby faults, promoting slip and, potentially, earthquakes. High‐viscous fluids are often used during hydraulic fracturing and production phases in geo‐reservoirs.
Cornelio, C., Violay, M.
openaire   +4 more sources

Earthquake simulations with time-dependent nucleation and long-range interactions [PDF]

open access: yesNonlinear Processes in Geophysics, 1995
A model for rapid simulation of earthquake sequences is introduced which incorporates long-range elastic interactions among fault elements and time-dependent earthquake nucleation inferred from experimentally derived rate- and state-dependent fault ...
J. H. Dieterich
doaj   +1 more source

Physical mechanisms of earthquake nucleation and foreshocks: Cascade triggering, aseismic slip, or fluid flows?

open access: yesEarthquake Research Advances
Earthquakes 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
exaly   +3 more sources

Frictional healing and induced earthquakes on conventionally stable faults [PDF]

open access: yesNature Communications
Conventional 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
doaj   +2 more sources

Insights on earthquake nucleation revealed by numerical simulation and unsupervised machine learning of laboratory-scale earthquake [PDF]

open access: yesScientific Reports
Understanding 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
doaj   +2 more sources

Earthquake nucleation on dip-slip faults [PDF]

open access: yesJournal of Geophysical Research, 2004
The nucleation of unstable slip on a fault is of key importance in our understanding of the seismic cycle. We investigate how the asymmetric geometry of dip‐slip faults affects the nucleation of unstable slip on such faults. Previous researchers have devoted much effort to understanding this nucleation process on geometrically simple faults, using a ...
David D Oglesby, Guanshui Xu
exaly   +2 more sources

Nucleation and Cascade Features of Earthquake Mainshock Statistically Explored from Foreshock Seismicity

open access: yesEntropy, 2019
The relation between the size of an earthquake mainshock preparation zone and the magnitude of the forthcoming mainshock is different between nucleation and domino-like cascade models.
Masashi Kamogawa   +5 more
doaj   +2 more sources

An electrochemical hypothesis of earthquakes exploring a theoretical link between radiated seismic energy and Pourbaix potential [PDF]

open access: yesScientific Reports
Earthquakes 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
doaj   +2 more sources

Earthquake Nucleation Processes Across Different Scales and Settings [PDF]

open access: yes, 2020
Extended nucleation phases of earthquakes have been regularly observed, yet the underlying mechanisms governing the initiation phase of rupture are yet to be understood in detail.
Bentz, Stephan
core   +2 more sources

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