Investigating linear and nonlinear behaviours in time dynamics of observational seismic sequences (Articolo in rivista)

Type
Label
  • Investigating linear and nonlinear behaviours in time dynamics of observational seismic sequences (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S0960-0779(03)00375-8 (literal)
Alternative label
  • Telesca L [1], Lapenna V [1], Macchiato M [2] (2004)
    Investigating linear and nonlinear behaviours in time dynamics of observational seismic sequences
    in Chaos, solitons and fractals
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Telesca L [1], Lapenna V [1], Macchiato M [2] (literal)
Pagina inizio
  • 195 (literal)
Pagina fine
  • 203 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 20 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] CNR, Inst Metadol Anal Ambientale, I-85050 Tito, PZ, Italy [ 2 ] Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy (literal)
Titolo
  • Investigating linear and nonlinear behaviours in time dynamics of observational seismic sequences (literal)
Abstract
  • Investigating the time dynamics of complex natural systems is one of the most important scientific challenges, and, in particular, recognizing the dynamical properties in seismicity data could give a better understanding of the geophysical mechanisms underlying tectonic processes. Can the linear/nonlinear properties of an observational seismic sequence be revealed? And what information can they convey? Recently it has proposed magnitude and sign decomposition method for analyzing the dynamical properties of a time series. Applying this method, we investigated two seismic sequences: the 1986-2001 Irpinia-Basilicata (southern Italy) sequence and the 1983-1998 southern California sequence. Our results highlight the following issues: (i) the nonlinear behaviour of seismicity mainly relies to the aftershock activation, that follows a large shock, and (ii) a nontrivial dependence of the dynamical properties of the seismic series could be found with the earthquake depth, due to brittle and ductile behaviour of the crust versus depth. (literal)
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