Luciano Telesca et al 2005 New J. Phys. 7 214 doi:10.1088/1367-2630/7/1/214
Multifractal fluctuations in earthquake-related geoelectrical signals
Luciano Telesca1,3, Vincenzo Lapenna1 and Maria Macchiato2
Show affiliationsMultifractal fluctuations in the time dynamics of geoelectrical data, recorded in a seismic area of southern Italy, have been analysed. We find that the multifractality of the signal depends mostly on the different long-range properties for small and large fluctuations. Furthermore, we quantitatively characterized the multifractality of the geoelectrical time series, on the basis of the characteristic parameters derived from the multifractal spectrum (maximum α0, asymmetry B and width W) (Shimizu Y, Thurner S and Ehrenberger K 2002 Fractals 10 103). We then analysed the time evolution of the multifractal parameters and we found that the multifractal degree of the signal, revealed by the variation of the width of the multifractal spectrum, is enhanced in association with the occurrence of the largest seismic event. This study aims to suggest another approach to investigate the complex dynamics of geoelectrical signals.
- PACS
-
91.30.Px Phenomena related to earthquake prediction
91.25.Qi Geoelectricity; electromagnetic induction and conductivity (magnetotelluric effects)
- Subjects
- Dates
-
Issue 1 (October 2005)
Received 14 June 2005
Published 7 October 2005
-
Multifractal fluctuations in earthquake-related geoelectrical signals
Luciano Telesca et al 2005 New J. Phys. 7 214
-
Na, Al, and O Abundances of Open Clusters NGC 7142, NGC 6939, and IC 4756
Heather R. Jacobson et al. 2007 The Astronomical Journal 134 1216
-
Stability of flux compactifications and the pattern of supersymmetry breaking
Kiwoon Choi et al JHEP11(2004)076
-
The tubular conical helix of graphitic boron nitride
F F Xu et al 2003 New J. Phys. 5 118
-
The non-equilibrium nature of culinary evolution
Osame Kinouchi et al 2008 New J. Phys. 10 073020
-
Long-distance quantum key distribution in optical fibre
P A Hiskett et al 2006 New J. Phys. 8 193
-
Coupling of evanescent s-polarized waves to the far field by waveguide modes in metallic arrays
Marcelo Lester and Diana C Skigin 2007 J. Opt. A: Pure Appl. Opt. 9 81
-
Causal structure of analogue spacetimes
Carlos Barceló et al 2004 New J. Phys. 6 186
-
Spontaneous creation of inflationary universes and the cosmic landscape
Hassan Firouzjahi et al JHEP09(2004)060
-
Final report on key comparison CCT-K4 of local realizations of aluminium and silver freezing-point temperatures
H G Nubbemeyer and J Fischer 2002 Metrologia 39 03001