EFFECT of colored noise on the generation of seismic fault MOVEMENT: Analogy with spring-block model DYNAMICS

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dc.citation.rankM21a
dc.citation.spage109726
dc.citation.volume135
dc.contributor.authorKostić, Srđan
dc.contributor.authorVasović, Nebojša
dc.contributor.authorTodorović, Kristina
dc.contributor.authorFranović, Igor
dc.date.accessioned2024-06-18T08:19:50Z
dc.date.available2024-06-18T08:19:50Z
dc.date.issued2020-06
dc.description.abstractIn present paper authors examined the effect of colored noise on the onset of seismic fault motion. For this purpose, they analyze the dynamics of spring-block model, with 10 all-to all coupled blocks. This spring-block model is considered as a collection of fault patches (with the increased rock friction), which are separated by the material bridges (more petrified parts of the fault). In the first phase of research, authors confirm the presence of autocorrelation in the background of seismic noise, using the measurement of real fault movement, and the recorded ground shaking before and after an earthquake. In the second stage of the research, authors firstly develop a mean-field model, which accurately enough describes the dynamics of a starting block model, with the introduced delayed interaction among the blocks, while colored noise is assumed to be generated by Ornstein-Uhlenbeck process. The results of the analysis indicate the existence of three different dynamical regimes, which correspond to three regimes of fault motion: steady stationary state, aseismic creep and seismic fault motion. The effect of colored noise lies in the possibility of generating the seismic fault motion even for small values of correlation time. Moreover, it is shown that the tight connection between the blocks, i.e. fault patches prevent the occurrence of seismic fault motion.
dc.identifier.doi10.1016/j.chaos.2020.109726
dc.identifier.issn0960-0779
dc.identifier.scopus2-s2.0-85084047072
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/113
dc.identifier.wos000540074900011
dc.language.isoen
dc.publisherElsevier BV
dc.relation.ispartofChaos, Solitons and Fractals
dc.relation.ispartofabbrChaos Solit. Fractals
dc.rightsopenAccess
dc.titleEFFECT of colored noise on the generation of seismic fault MOVEMENT: Analogy with spring-block model DYNAMICS
dc.typeArticle
dc.type.versionpublishedVersion
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