Low frequency events at Mt. Etna: some problems and open questions

Main Article Content

S. Alparone
S. Gresta

Abstract

A short period seismic array setting at Mt. Etna symmetrically in regard to the fracture of the 1991-1993 eruption allowed an analysis of low frequency events which occurred in the first phase of the mentioned eruption. We recorded about 50 events, 19 of them belong to a family. They show very low amplitude values and spectral peaks ranging 0.5-4.5 Hz. The evidence of this family of events shows how the process driving the dynamics of the fluid in the volcano is often the same.

Article Details

How to Cite
Alparone, S. and Gresta, S. (1996) “Low frequency events at Mt. Etna: some problems and open questions”, Annals of Geophysics, 39(2). doi: 10.4401/ag-3971.
Section
OLD

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