Investigation of the temporal fluctuations of the 1960-2010 seismicity of Caucasus (Articolo in rivista)

Type
Label
  • Investigation of the temporal fluctuations of the 1960-2010 seismicity of Caucasus (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.5194/nhess-12-1905-2012 (literal)
Alternative label
  • Telesca L., Matcharashvili T., Chelidze T. (2012)
    Investigation of the temporal fluctuations of the 1960-2010 seismicity of Caucasus
    in Natural hazards and earth system sciences (Print); Copernicus Gesellschaft MBH, Gottingen (Germania)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Telesca L., Matcharashvili T., Chelidze T. (literal)
Pagina inizio
  • 1905 (literal)
Pagina fine
  • 1909 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 12 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IMAA, Consiglio Nazionale Delle Ricerche, Istituto di Metodologie per l'Analisi Ambientale, C.da S.Loja, 85050 Tito (PZ), Italy. M. Nodia Institute of Geophysics, 1, Alexidze str. 0175, Tbilisi, Georgia (literal)
Titolo
  • Investigation of the temporal fluctuations of the 1960-2010 seismicity of Caucasus (literal)
Abstract
  • The time-clustering behaviour of the seismicity of the Caucasus spanning from 1960 to 2010 was investigated. The analysis was performed on the whole and aftershock-depleted catalogues by means of the method of Allan Factor, which permits the identification and quantification of time-clustering in point processes. The whole sequence is featured by two scaling regimes with the scaling exponent at intermediate timescales lower than that at high timescales, and a crossover that could be probably linked with aftershock time activiation. The aftershock-depleted sequence is characterized by higher time-clustering degree and the presence of a periodicity probably correlated with the cyclic earth surface load variations on regional and local scales, e.g. with snow melting in Caucasian mountains and large Enguri dam operations. The obtained results were corroborated by the application of two surrogate methods: the random shuffling and the generation of Poissonian sequences. (literal)
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