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| Titel |
Investigating non-uniform scaling behaviour in temporal fluctuations of seismicity |
| VerfasserIn |
L. Telesca, M. Lovallo |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 8, no. 5 ; Nr. 8, no. 5 (2008-09-01), S.973-976 |
| Datensatznummer |
250005760
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| Publikation (Nr.) |
 copernicus.org/nhess-8-973-2008.pdf |
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| Zusammenfassung |
| Scaling behaviour in nonstationary time series can be successfully detected
using the detrended fluctuation analysis (DFA). Observational time series
often do not show a stable and uniform scaling behaviour, given by the
presence of a unique clear scaling region. The deviations from uniform
power-law scaling, which suggest the presence of changing dynamics in the
system under study, can be identified and quantified using an appropriate
instability index. In this framework, the scaling behaviour of the 1981–2007
seismicity in Umbria-Marche (central Italy), which is one of the most
seismically active areas in Italy, was investigated. Significant deviations
from uniform power-law scaling in the seismic temporal fluctuations were
revealed mostly linked with the occurrence of rather large earthquakes or
seismic clusters. |
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