Journal ArticleDOI
Evidence for and implications of self-healing pulses of slip in earthquake rupture
TLDR
In this article, a qualitative model is presented that produces self-healing slip pulses, which is the key feature of the model is the assumption that friction on the fault surface is inversely related to the local slip velocity, and the model has the following features: high static strength of materials (kilobar range), low static stress drops (in the range of tens of bars).About:
This article is published in Physics of the Earth and Planetary Interiors.The article was published on 1990-11-01. It has received 901 citations till now. The article focuses on the topics: Slip (materials science) & Earthquake rupture.read more
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Local Observations of the Onset of a Large Earthquake: 28 June 1992 Landers, California
Richael Abercrombie,Jim Mori +1 more
TL;DR: In this article, the spatial relationship between the hypocenter and the onset of the large energy release was investigated to determine the slip function of the 3-sec nucleation process, which indicated that the dynamic stresses during earthquake rupture are at least as important as long-term static stresses in causing earthquakes and the prospects of reliable earthquake prediction from premonitory phenomena are not improved.
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Observations of the slow initial phase generated by microearthquakes: Implications for earthquake nucleation and propagation
TL;DR: In this paper, the authors found that the initial rise of far-field P wave velocity pulses generated by micro-earthquakes is not well represented by a ramp function but exhibits a gradual increase according to the function tn (2 < n < 4), where t is the time measured from the onset of the P wave.
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Modeling directivity of heterogeneous earthquake ruptures
TL;DR: In this article, a scale-dependent rise-time τ( kx ), where kx is the wavenumber in the direction of propagation, is introduced, where at a scale smaller than L, the partial slip at a given wavelength is completed in a time proportional to this wavelength after the arrival of the rupture front.
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Scaling Relationships of Source Parameters for Slow Slip Events
TL;DR: In this paper, the authors explore the scaling relationships of various source parameters and compare them with similar scaling laws for earthquakes, highlighting differences and similarities between slow slip events and earthquakes and hold implications for the degree of heterogeneity and fault-healing characteristics.
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Transition of mode II cracks from sub-Rayleigh to intersonic speeds in the presence of favorable heterogeneity
Yi Liu,Nadia Lapusta +1 more
TL;DR: In this article, the authors investigated the dependence of intersonic transition and subsequent crack propagation on model parameters and discuss implications for earthquake dynamics and seismic radiation, and found that favorable heterogeneity with favorable heterogeneity achieved sub-Rayleigh transition and propagation for much lower prestress levels than the ones implied by the Burridge-Andrews mechanism and have transition distances that depend on the position of heterogeneity.
References
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The Determination of the Elastic Field of an Ellipsoidal Inclusion, and Related Problems
TL;DR: In this paper, it is shown that to answer several questions of physical or engineering interest, it is necessary to know only the relatively simple elastic field inside the ellipsoid.
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Tectonic stress and the spectra of seismic shear waves from earthquakes
TL;DR: In this paper, an earthquake model is derived by considering the effective stress available to accelerate the sides of the fault, and the model describes near and far-field displacement-time functions and spectra and includes the effect of fractional stress drop.
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Theoretical basis of some empirical relations in seismology
Hiroo Kanamori,Don L. Anderson +1 more
TL;DR: In this article, an empirical relation involving seismic moment M, energy E, magnitude M, and fault dimension L (or area S) is discussed on the basis of an extensive set of earthquake data (M_S ≧ 6) and simple crack and dynamic dislocation models.
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Modeling of rock friction: 1. Experimental results and constitutive equations
TL;DR: In this paper, it is shown that the strength of the population of points of contacts between sliding surfaces determines frictional strength and that the number of contacts changes continuously with displacements.