Results 181 to 190 of about 5,588,675 (211)

Dynamical scaling and generalized Omori law [PDF]

Geophysical Research Letters, 2007
The power law decay of the aftershocks rate is observed only after a characteristic time scale c. The dependence of c on the mainshock magnitude MM and on the lower cut-off magnitude M(I) is well established.
Lucilla de Arcangelis, Eugenio Lippiello   +1 more
exaly   +4 more sources

Bayesian analysis of the modified Omori law [PDF]

Journal of Geophysical Research, 2012
In order to examine variations in aftershock decay rate, we propose a Bayesian framework to estimate the {K, c, p}‐values of the modified Omori law (MOL), λ(t) = K(c + t)−p. The Bayesian setting allows not only to produce a point estimator of these three parameters but also to assess their uncertainties and posterior dependencies with respect to the ...
Clement Narteau, Matthias Holschneider
exaly   +4 more sources

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Omori's Law

Developments in Structural Geology and Tectonics, 2018
Jure Žalohar
exaly   +2 more sources

Magnitude-dependent Omori law: Theory and empirical study [PDF]

Journal of Geophysical Research, 2005
We propose a new physically based “multifractal stress activation” model of earthquake interaction and triggering based on two simple ingredients: (1) a seismic rupture results from activated processes giving an exponential dependence on the local stress and (2) the stress relaxation has a long memory. The combination of these two effects predicts in a
Didier Sornette
exaly   +4 more sources

Omori law for eruption foreshocks and aftershocks [PDF]

Journal of Geophysical Research, 2012
Using the 1973–2009 worldwide catalogs forM≥ 4.8 seismicity andVEI≥ 0 volcano eruptions, we compare the properties of seismic damage patterns contemporary with eruption with the properties of foreshocks and aftershocks of classic tectonic earthquakes. Using superposed epoch analysis, we demonstrated that the seismicity rate after eruption decreases as ...
A. Schmid, J.‐R. Grasso
exaly   +2 more sources

A generalized Omori's law for earthquake aftershock decay [PDF]

Geophysical Research Letters, 2004
Earthquake aftershock sequences have been found to approximately satisfy three empirical scaling relations: i) the Gutenberg‐Richter frequency‐magnitude scaling, ii) Båth's law for the difference in the magnitude of a mainshock and its largest aftershock, and iii) the modified Omori's law for the temporal decay of aftershock rates.
John Rundle, Robert Shcherbakov
exaly   +2 more sources

The Omori Law: The 150-Year Birthday Jubilee of Fusakichi Omori

Journal of Volcanology and Seismology, 2018
The outstanding Japanese seismologist Fusakichi Omori was born 150 years ago, on October 30, 1868. He discovered his first law in earthquake physics that now bears his name when he was 26. Essentially, Omori’s law tells us that the decay of aftershock rate follows a hyperbolic law.
A. V. Guglielmi, A. D. Zavyalov
openaire   +1 more source

Financial crisis, Omori's law, and negative entropy flow

International Review of Financial Analysis, 2013
Abstract The 2008 global financial crisis has revived great interest in early warning system (EWS) models for reducing the risks of future crises. Existing EWS models employ aggregated variables that cannot examine the nonlinear dynamics of participating players on scales smaller than a country in unstable, non-equilibrium economies.
Jianbo Gao, Jing Hu
openaire   +2 more sources