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Titel |
Non-uniform scaling behavior in Umbria-Marche seismicity and detection of possible earthquake precursors |
VerfasserIn |
L. Telesca, M. Lovallo |
Konferenz |
EGU General Assembly 2009
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Medientyp |
Artikel
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Sprache |
Englisch
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Digitales Dokument |
PDF |
Erschienen |
In: GRA - Volume 11 (2009) |
Datensatznummer |
250020069
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Zusammenfassung |
The scaling behavior of the 1981-2007 seismicity in Umbria-Marche (central Italy) Region, one of the most seismically active areas in Italy, was investigated, by using the detrended fluctuation analysis (DFA), a powerful method for capturing scaling behavior in nonstationary time series. Using an appropriate instability index, it is possible to identify and quantify deviations from uniform power-law scaling, which suggest the presence of changing dynamics in the system under study. Significant deviations from uniform power-law scaling in the temporal fluctuations of Umbria-Marche seismicity were revealed mostly linked with the occurrence of rather large earthquakes or seismic clusters. |
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