Nonextensive analysis of seismic sequences

By using the Tsallis-based nonextensive statistics, the analysis of the magnitude distribution of several seismic catalogues in Italy was performed. The analysis shows similar values for the qq-value, in good agreement with those obtained for other seismo-tectonic settings [e.g. Silva et al. (2006) [2] and Vilar et al. (2007) [3]]. In particular, it is shown that the volcano seismicity is characterized by slightly lower values for qq. The latter results could provide hints for further investigation in discriminating tectonic from volcanic seismicity.