S. Vinciguerra et al., The two behaviours of Mt. Etna volcano before and after a large intrusive episode: evidences from b value and fractal dimension of seismicity., GEOPHYS R L, 28(11), 2001, pp. 2257-2260
Seismic activity of Mt. Etna volcano has been investigated by analysing tim
e-spatial fractal dimensions and the b value of the Gutenberg-Richter's law
relatively to two differing eruptive style periods, i.e. 1983-1988 and 199
3-1996. The obtained results evidence two different volcano stress conditio
ns before and after the large intrusive episode occurred during the time sp
an 1989-1992. Fractal dimensions and the b value seem to be a promising too
l to understand the internal current state of the volcano, allowing to eval
uate the short-middle term volcanic hazard.