Investigating the multifractal properties of geoelectrical signals measured in southern Italy

Multifractal investigation of the time fluctuations in the hourly time variability of geoelectrical signals, measured from January 2001 to September 2002 by four stations installed in Basilicata region (southern Italy) has been performed. Three stations (Giuliano, Marsico and Tito) are located in a seismic area and one (Laterza) in an aseismic area. The set of the multifractal parameters reveals the larger "complexity" of data measured in seismic areas respect to those recorded in aseismic areas, suggesting their potential in discriminating the two types of signals.