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The two behaviours of Mt. Etna Volcano before and after a large intrusive episode: Evidences from b value and fractal dimension of seismicity
Author(s) -
Vinciguerra Sergio,
Gresta Stefano,
Barbano Maria Serafina,
Distefano Giovanni
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 - 10.1029/2000gl012434
Subject(s) - volcano , induced seismicity , geology , seismology , fractal dimension , fractal , mathematics , mathematical analysis
Seismic activity of Mt. Etna volcano has been investigated by analysing time‐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 1993–1996. The obtained results evidence two different volcano stress conditions before and after the large intrusive episode occurred during the time span 1989–1992. Fractal dimensions and the b value seem to be a promising tool to understand the internal current state of the volcano, allowing to evaluate the short‐middle term volcanic hazard.