Isochronal maps at Mt. Etna volcano (Italy): a simple and reliable tool for investigating large-scale heterogeneities

G. Patanè, C. Centamore, S. La Delfa

Abstract


This paper analyses twelve etnean earthquakes which occurred at various depths and recorded at least by eleven stations. The seismic stations span a wide part of the volcanic edifice; therefore each set of direct P-wave arrival times at these stations can be considered appropriate for tracing isochronal curves. Using this simple methodology and the results obtained by previous studies the authors make a reconstruction of the geometry of the bodies inside the crust beneath Mt. Etna. These bodies are interpreted as a set of cooled magmatic masses, delimited by low-velocity discontinuities which can be considered, at present, the major feeding systems of the volcano.

Keywords


Mt. Etna;isochronal curves

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References


DOI: https://doi.org/10.4401/ag-3874
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X