Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/15115
DC Field | Value | Language |
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dc.date.accessioned | 2021-12-15T14:12:37Z | - |
dc.date.available | 2021-12-15T14:12:37Z | - |
dc.date.issued | 2021 | - |
dc.identifier.uri | http://hdl.handle.net/2122/15115 | - |
dc.description | This article has been accepted for publication in Geophysical Journal International ©: The Authors 2021. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. Uploaded in accordance with the publisher's self-archiving policy. | en_US |
dc.description | This article has been accepted for publication in Geophysical Journal International ©:The Author(s) 2021. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.Uploaded in accordance with the publisher's self-archiving policy. All rights reserved. | en_US |
dc.description.abstract | Three dimensional attenuation images of Mt Etna volcano obtained by the analysis of Q-coda from local volcano-tectonic earthquakes are presented in this work. Seismic sources are confined inside the Etna structure with a maximum focal depth of 35 km below the sea level. The space distribution of the attenuation values was calculated by using 3-D weighting functions derived by the sensitivity kernels of Pacheco & Snieders and approximated by a polynomial interpolation, represented in the maps by using a backprojection method. Data were analyzed in four bands with central frequency placed at 1.5, 3, 6 and 12 Hz, respectively. We observed a frequency dependence of Q-coda with values that range from 55 at 1.5 Hz to 218 at 12 Hz. Q-coda space distribution in the Etna area shows almost uniformity in the average attenuation in the first 35 km below the surface. The images were derived with a resolution of 5 km. We observe as one of our main conclusions that Q-coda attenuation space anomalies are correlated with the areas of highest structural heterogeneities and are distributed along the well-known tectonic structures which characterize the crust in Mt Etna region. Previous and numerous velocity and attenuation images describing the structure of Mt Etna support our main conclusion: high Q-coda volumes almost coincide with the zones marked by high velocity and relative low total attenuation for direct waves. | en_US |
dc.language.iso | English | en_US |
dc.publisher.name | Oxford University Press | en_US |
dc.relation.ispartof | Geophysical Journal International | en_US |
dc.relation.ispartofseries | 1/227 (2021) | en_US |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 United States | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/us/ | * |
dc.title | 3-D Q-coda attenuation structure at Mt. Etna (Italy) | en_US |
dc.type | article | en |
dc.description.status | Published | en_US |
dc.type.QualityControl | Peer-reviewed | en_US |
dc.description.pagenumber | 544–558 | en_US |
dc.identifier.doi | 10.1093/gji/ggab235 | en_US |
dc.description.obiettivoSpecifico | 2V. Struttura e sistema di alimentazione dei vulcani | en_US |
dc.description.journalType | JCR Journal | en_US |
dc.relation.issn | 0956-540X | en_US |
dc.contributor.author | Giampiccolo, Elisabetta | - |
dc.contributor.author | Del Pezzo, Edoardo | - |
dc.contributor.author | Tuvè, Tiziana | - |
dc.contributor.author | Di Grazia, Giuseppe | - |
dc.contributor.author | Ibanez, Jesús M | - |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en_US |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | en_US |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en_US |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en_US |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en_US |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | - |
crisitem.author.orcid | 0000-0001-5203-7436 | - |
crisitem.author.orcid | 0000-0002-6981-5967 | - |
crisitem.author.orcid | 0000-0003-4111-8008 | - |
crisitem.author.orcid | 0000-0002-8153-9280 | - |
crisitem.author.orcid | 0000-0002-9846-8781 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
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Giampiccolo_et_al_GJI_2021.pdf | Paper | 11.93 MB | Adobe PDF | View/Open |
Giampiccolo_et_al_2021_submitted_version.pdf | Open Access submitted article | 7.41 MB | Adobe PDF | View/Open |
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