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Earthquake simulations with time-dependent nucleation and long-range interactions
Earthquake simulations time-dependent nucleation long-range interactions
2009/11/16
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 experi...
Solitary wave in a Burridge-Knopoff model with slip-dependent friction as a clue to understanding the mechanism of the self-healing slip pulse in an earthquake rupture process
Solitary wave Burridge-Knopoff model slip-dependent friction earthquake rupture process
2009/11/13
A one-dimensional Burridge-Knopoff spring-block model with slip-dependent friction was studied to explore the possibility of a solitary wave solution existing for the problem of earthquake faulting. T...
Self-organization of spatio-temporal earthquake clusters
Self-organization spatio-temporal earthquake clusters
2009/11/12
Cellular automaton versions of the Burridge-Knopoff model have been shown to reproduce the power law distribution of event sizes; that is, the Gutenberg-Richter law. However, they have failed to repro...
A simple model for the earthquake cycle combining self-organized complexity with critical point behavior
earthquake cycle self-organized complexity critical point behavior
2009/11/12
We have studied a hybrid model combining the forest-fire model with the site-percolation model in order to better understand the earthquake cycle. We consider a square array of sites. At each time ste...
Characteristic scales of earthquake rupture from numerical models
Characteristic scales earthquake rupture numerical models
2009/11/12
Numerical models of earthquake rupture are used to investigate characteristic length scales and size distributions of repeated earthquakes on vertical, planar fault segments. The models are based on e...
Earthquake statistics in a Block Slider Model and a fully dynamic Fault Model
Earthquake statistics Block Slider Model fully dynamic Fault Model
2009/11/11
We examine the event statistics obtained from two differing simplified models for earthquake faults. The first model is a reproduction of the Block-Slider model of Carlson et al. (1991), a model often...
No proven method is currently available for the reliable short time prediction of earthquakes (minutes to months). However, it is possible to make probabilistic hazard assessments for earthquake risk....
Multifractal analysis for the ULF geomagnetic data during the 1993 Guam earthquake
Multifractal analysis ULF geomagnetic data Guam earthquake
2009/11/9
In our previous papers we have shown that the fractal (monofractal) dimension (Do) showed a significant increase before the Guam earthquake occurred on 8 August, 1993. In order to have a further suppo...
Nonlinear multidimensional scaling and visualization of earthquake clusters over space,time and feature space
Nonlinear multidimensional scaling visualization of earthquake clusters time and feature space
2009/11/9
We present a novel technique based on a multi-resolutional clustering and nonlinear multi-dimensional scaling of earthquake patterns to investigate observed and synthetic seismic catalogs. The observe...
Mixing of rescaled data and Bayesian inference for earthquake recurrence times
rescaled data Bayesian inference earthquake recurrence times
2009/11/9
The limits of a recently proposed universal scaling law for the probability distributions of earthquake recurrence times are explored. The scaling properties allow to improve the statistics of occurre...
On the separation of timescales in spring-block earthquake models
separation of timescales spring-block earthquake models
2009/11/9
One of the most widespread spring-block earthquake models, the Olami-Feder-Christensen model, is investigated without making the assumption that the duration of individual earthquakes is negligible. W...
Using earthquake intensities to forecast earthquake occurrence times
earthquake intensities earthquake occurrence times
2009/11/9
It is well known that earthquakes do not occur randomly in space and time. Foreshocks, aftershocks, precursory activation, and quiescence are just some of the patterns recognized by seismologists. Usi...
Fractal analysis for the ULF data during the 1993 Guam earthquake to study prefracture criticality
Fractal analysis ULF data Guam earthquake prefracture criticality
2009/11/9
An extremely large earthquake (with magnitude of 8.2) happened on 8 August 1993 near the Guam island, and ultra-low-frequency (ULF) (frequency less than 1 Hz) electromagnetic fields were measured by 3...
Time-scale invariant changes in atmospheric radon concentration and crustal strain prior to a large earthquake
Time-scale invariant changes atmospheric radon concentration crustal strain earthquake
2009/11/2
Prior to large earthquakes (e.g. 1995 Kobe earthquake, Japan), an increase in the atmospheric radon concentration is observed, and this increase in the rate follows a power-law of the time-to-earthqua...
Tsallis and Levy statistics in the preparation of an earthquake
Tsallis Levy statistics preparation of an earthquake
2009/10/30
Precursory fracture induced electromagnetic (EM) emissions, rooted in opening cracks and ranging from MHz to kHz, with the MHz appearing earlier, are produced and detected both at laboratory and geoph...