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Physical model test on soil slopes under the effect of bedrock fault dislocations. [PDF]

PLoS One
Song Y, Zhang J, Ma J, Li X, Zhang H, Hu R.   +5 more
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Forecasting Induced Earthquake Hazard Using a Hydromechanical Earthquake Nucleation Model

Seismological Research Letters, 2021
AbstractIn response to the dramatic increase in earthquake rates in the central United States, the U.S Geological Survey began releasing 1 yr earthquake hazard models for induced earthquakes in 2016. Although these models have been shown to accurately forecast earthquake hazard, they rely purely on earthquake statistics because there was no precedent ...
Justin L. Rubinstein, Andrew J. Barbour, Jack H. Norbeck   +2 more
openaire   +1 more source

Seismic Evidence for an Earthquake Nucleation Phase

Science, 1995
Near-source observations show that earthquakes initiate with a distinctive seismic nucleation phase that is characterized by a low rate of moment release relative to the rest of the event. This phase was observed for the 30 earthquakes having moment magnitudes 2.6 to 8.1, and the size and duration of this phase scale with the eventual size of the ...
W L, Ellsworth, G C, Beroza
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Testing a model of earthquake nucleation

Bulletin of the Seismological Society of America, 1995
Abstract Some laboratory models of slip find that a critical amount (or velocity) of slow slip is required over a nucleation patch before dynamic failure begins. Typically, such patch sizes, when extrapolated to earthquakes, have been thought to be very small and the precursory slip undetectable.
Rachel E. Abercrombie, Duncan C. Agnew, Frank K. Wyatt   +2 more
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Unsettled earthquake nucleation

Nature Geoscience, 2018
Detailed analyses of the source characteristics of two earthquake sequences lead to seemingly contradictory interpretations: one study concludes that each earthquake triggers subsequent ones, while the other favours a slow-slip trigger.
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Testing Earthquake Nucleation Length Scale with Pawnee Aftershocks

Seismological Research Letters, 2022
Abstract The interpretation of precursory seismicity can depend on a critical nucleation length scale h*, yet h* is largely unconstrained in the seismogenic crust. To estimate h* and associated earthquake nucleation processes at 2–7 km depths in Oklahoma, we studied seismic activity occurring prior to nine M 2.5–3.0 earthquakes that are ...
Bill S. Wu, Gregory C. McLaskey
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A Laboratory Perspective on Earthquake Nucleation

2022
<p>Brittle failure of intact rock and frictional sliding on faults are closely related. Much of my early career studying brittle failure using acoustic emission techniques was helpful in providing insight into processes associated with faulting and earthquakes.
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State evolution laws and earthquake nucleation

2021
<p>In models of faults as elastic continua with a frictional interface, earthquake nucleation is the initiation of a propagating dynamic fault rupture nucleated by a localized slip instability. A mechanism capturing both the weakening process leading to nucleation as well as fault healing between events, is a ...
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Mechanisms of slip nucleation during earthquakes

Earth and Planetary Science Letters, 1999
Abstract Slip nucleation during earthquakes is apparently analogous to rupture nucleation within an intact rock sample subjected to triaxial loading. The observations indicate that both these nucleation processes initiate within a relatively small volume and in both the slip propagates unstably along a quasi-planar surface. In both processes a single,
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Earthquake Nucleation and Occurrence – Numerical Investigation

2010
The great Wenchuan earthquake caused much damage in Sichuan and neighbor provinces in Western China. As described above, it occurred along the Longmenshan thrust belt that is situated at the transformation site between the NEE-directing compressive stress field of the Qinghai-Tibetan plateau and the NW-directing compressive stress field of the western ...
Huilin Xing, Xiwei Xu
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