Journal of Seismology

, Volume 19, Issue 1, pp 105–119 | Cite as

A reappraisal of seismic Q evaluated at Mt. Etna volcano. Receipt for the application to risk analysis

  • Edoardo Del Pezzo
  • Francesca Bianco
  • Elisabetta Giampiccolo
  • Giuseppina Tusa
  • Tiziana Tuvé
Original Article
  • 197 Downloads

Abstract

A new approach in dealing with seismic risk in the volcanic areas of Italy, by taking into account the possible occurrence of damaging pre- or syn-eruptive seismic events, is exciting the scientific interest and is actually the topic developed in several research projects funded by the European Community (e.g., UPStrat-MAFA, www.upstrat-mafa.ov.ingv.it/UPstrat/) and the Civil Defense Department of Italy. To achieve this goal, it is necessary to have a detailed knowledge of the local attenuation-distance relations. In the present paper, we make a survey of the estimates of the seismic quality factor of the medium reported in literature for the Etna area. In the framework of a similar paper published for the Campi Flegrei zone in Southern Italy, we first review the results on seismic attenuation already obtained for Etna and then apply a standard technique to separately measure intrinsic and scattering attenuation coefficients from passive seismic data recorded by the Etna seismological network. Indications are then given for the correct utilization of the attenuation parameters to obtain the best candidate quality factor Q to be used in this area for seismic risk purposes.

Keywords

Seismic attenuation MLTWA method Mt. Etna 

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Edoardo Del Pezzo
    • 1
    • 3
  • Francesca Bianco
    • 1
  • Elisabetta Giampiccolo
    • 2
  • Giuseppina Tusa
    • 2
  • Tiziana Tuvé
    • 2
  1. 1.Istituto Nazionale di Geofisica e Vulcanologia, sezione di Napoli “Osservatorio Vesuviano”NaplesItaly
  2. 2.Istituto Nazionale di Geofisica e Vulcanologia, sezione di Catania “Osservatorio Etneo”CataniaItaly
  3. 3.Instituto Andaluz de GeofisicaUniversidad de GranadaGranadaSpain

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