Crustal Structure of Etna Volcano (Italy) From P‐Wave Anisotropic Tomography
Abstract Several seismic tomographic studies have been carried out to outline the intricate interplay between tectonics and magma uprising at Etna volcano. Most of these studies assume a seismically isotropic crust. Here we employ a novel methodology that accounts for the anisotropic structure of th...
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| Format: | Article |
| Language: | English |
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Wiley
2024-07-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL108733 |
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| author | R. Lo Bue F. Rappisi M. Firetto Carlino E. Giampiccolo O. Cocina B. P. Vanderbeek M. Faccenda |
| author_facet | R. Lo Bue F. Rappisi M. Firetto Carlino E. Giampiccolo O. Cocina B. P. Vanderbeek M. Faccenda |
| author_sort | R. Lo Bue |
| collection | DOAJ |
| description | Abstract Several seismic tomographic studies have been carried out to outline the intricate interplay between tectonics and magma uprising at Etna volcano. Most of these studies assume a seismically isotropic crust. Here we employ a novel methodology that accounts for the anisotropic structure of the crust. Anisotropy patterns are consistent with the Etna structural trends, unveiling the depth extent of fault segments. A high‐velocity volume, deepening toward the northwest, identifies the subducting foreland units that appear to confine a low‐velocity anomaly, interpreted as the expression of magmatic fluids within the crust. A discontinuity, likely tectonic in origin, affects the subducting units and allows magma transfer from depth to the surface. This structural configuration may explain the presence of such a very active basaltic strato‐volcano within an atypical collisional geodynamic context. |
| format | Article |
| id | doaj-art-c01e3e7a8287446e8f0805833668f42a |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-c01e3e7a8287446e8f0805833668f42a2025-08-20T02:46:06ZengWileyGeophysical Research Letters0094-82761944-80072024-07-015113n/an/a10.1029/2024GL108733Crustal Structure of Etna Volcano (Italy) From P‐Wave Anisotropic TomographyR. Lo Bue0F. Rappisi1M. Firetto Carlino2E. Giampiccolo3O. Cocina4B. P. Vanderbeek5M. Faccenda6Dipartimento di Geoscienze Università Degli Studi di Padova Padova ItalyUniversity of Leeds School of Earth and Environment Leeds UKIstituto Nazionale di Geofisica e Vulcanologia Sezione di Catania‐Osservatorio Etneo Catania ItalyIstituto Nazionale di Geofisica e Vulcanologia Sezione di Catania‐Osservatorio Etneo Catania ItalyIstituto Nazionale di Geofisica e Vulcanologia Sezione di Catania‐Osservatorio Etneo Catania ItalyDipartimento di Geoscienze Università Degli Studi di Padova Padova ItalyDipartimento di Geoscienze Università Degli Studi di Padova Padova ItalyAbstract Several seismic tomographic studies have been carried out to outline the intricate interplay between tectonics and magma uprising at Etna volcano. Most of these studies assume a seismically isotropic crust. Here we employ a novel methodology that accounts for the anisotropic structure of the crust. Anisotropy patterns are consistent with the Etna structural trends, unveiling the depth extent of fault segments. A high‐velocity volume, deepening toward the northwest, identifies the subducting foreland units that appear to confine a low‐velocity anomaly, interpreted as the expression of magmatic fluids within the crust. A discontinuity, likely tectonic in origin, affects the subducting units and allows magma transfer from depth to the surface. This structural configuration may explain the presence of such a very active basaltic strato‐volcano within an atypical collisional geodynamic context.https://doi.org/10.1029/2024GL108733volcano seismologyseismic tomographyseismic anisotropyEtna volcano (Italy)local earthquakescrustal structure |
| spellingShingle | R. Lo Bue F. Rappisi M. Firetto Carlino E. Giampiccolo O. Cocina B. P. Vanderbeek M. Faccenda Crustal Structure of Etna Volcano (Italy) From P‐Wave Anisotropic Tomography Geophysical Research Letters volcano seismology seismic tomography seismic anisotropy Etna volcano (Italy) local earthquakes crustal structure |
| title | Crustal Structure of Etna Volcano (Italy) From P‐Wave Anisotropic Tomography |
| title_full | Crustal Structure of Etna Volcano (Italy) From P‐Wave Anisotropic Tomography |
| title_fullStr | Crustal Structure of Etna Volcano (Italy) From P‐Wave Anisotropic Tomography |
| title_full_unstemmed | Crustal Structure of Etna Volcano (Italy) From P‐Wave Anisotropic Tomography |
| title_short | Crustal Structure of Etna Volcano (Italy) From P‐Wave Anisotropic Tomography |
| title_sort | crustal structure of etna volcano italy from p wave anisotropic tomography |
| topic | volcano seismology seismic tomography seismic anisotropy Etna volcano (Italy) local earthquakes crustal structure |
| url | https://doi.org/10.1029/2024GL108733 |
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