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Intermittent‐type temporal fluctuations in seismicity of the Irpinia (southern Italy) Region
Author(s) -
Telesca Luciano,
Cuomo Vincenzo,
Lapenna Vincenzo,
Macchiato Maria
Publication year - 2001
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2001gl012949
Subject(s) - induced seismicity , intermittency , seismology , multifractal system , geology , aftershock , physics , meteorology , turbulence , mathematical analysis , mathematics , fractal
We present a new approach to investigate the temporal fluctuations of seismicity in terms of intermittency as the underlying dynamical mechanism for the variability of seismic activity. Analyzing the 1983–1997 Irpinia (southern Italy) seismicity, we base our analysis on the multifractal formalism combined with the estimate of the correlation codimension. Our findings show that the seismic activity of the area investigated is strongly intermittent, and the degree of intermittency lowers if aftershock clusters, associated to the larger events, are removed.