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Sottili, G, Palladino, DM, Giaccio, B and Messina, P (2012)

Benford's Law in Time Series Analysis of Seismic Clusters

Mathematical Geosciences Volume 44, Number 5 (2012), pp. 619-634.

ISSN/ISBN: Not available at this time. DOI: 10.1007/s11004-012-9398-1

Abstract: Benfordís analysis is applied to the recurrence times of approximately 17,000 seismic events in different geological contexts of Italy over the last 6 years, including the Mt. Etna volcanic area and the seismic series associated with the destructive M w 6.3, 2009 LíAquila earthquake. A close conformity to Benfordís law and a power-law probability distribution for the recurrence times of consecutive events is found, as typical of random multiplicative processes. The application of Benfordís law to the recurrence event times in seismic series of specific seismogenic regions represents a novel approach, which enlarges the occurrence and relevance of Benford-like asymmetries, with implications on the physics of natural systems approaching a power law behaviour. Moreover, we propose that the shift from a close conformity of Benfordís law to Brownian dynamics, observed for time separations among non-consecutive events in the study seismic series, may be ruled by a periodical noise factor, such as the effects of Earth tides on seismicity tuning.

@Article {, AUTHOR = {Sottili, Gianluca and Palladino, Danilo M. and Giaccio, Biagio and Messina, Paolo}, TITLE = {Benford's Law in Time Series Analysis of Seismic Clusters}, JOURNAL = {Mathematical Geosciences}, YEAR = {2012}, VOLUME = {44}, NUMBER = {5}, PAGES = {619--634}, DOI = {10.1007/s11004-012-9398-1}, }

Reference Type: Journal Article

Subject Area(s): Environmental Sciences