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dc.contributor.authorallAlparone, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.contributor.authorallAndronico, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.contributor.authorallGiammanco, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.contributor.authorallLodato, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.date.accessioned2005-08-08T10:51:08Zen
dc.date.available2005-08-08T10:51:08Zen
dc.date.issued2004-08-30en
dc.identifier.urihttp://hdl.handle.net/2122/358en
dc.description.abstractTwo strong flank eruptions occurred in July–August 2001 and from late October 2002 to late January 2003 at Mt. Etna volcano. The two eruptions mainly involved the upper southern flank of the volcano, a particularly active area during the last 30 years, damaging several tourist facilities and threatening some villages. The composite eruptive activity on the upper southern flank of Mt. Etna during 2001–2003 has confirmed “a posteriori” the results of a multidisciplinary study, started well before its occurrence by combining geological, seismic and geochemical data gathered in this part of the volcano. We were able, in fact, to highlight fractured zones likely to be re-activated in the near future in this area, where the largest majority of eruptive fissures in the recent past opened along N120° to N180° ranging directions. The spatial distribution of earthquake epicentres during the period June 30th 2000–June 30th 2001 showed the greatest frequency in a sector compatible with both the direction of the main fissures of the pre-2001 period and that of the 2001 and 2002 lateral eruptions. Soil CO2 and soil temperature surveys carried out in the studied area during the last 3 years have revealed anomalous release of magmatic fluids (mainly CO2 and water vapour) along some NNW–SSE-trending volcano-tectonic structures of the area even during inter-eruptive periods, indicating persistent convective hydrothermal systems at shallow depth connected with the main feeder conduits of Etna. The temporal changes in both seismic and geochemical data from June 30th, 2000 to June 30th, 2001 were compared with the evolution of volcanic activity. The comparison allowed to recognize at least two sequences of anomalous signals (August to December 2000 and April to June 2001), likely related to episodes of step-like magma ascent towards the surface, as indicated by the following eruptive episodes. The N120° to N180° structural directions are in accord with one of the main structural lines affecting eastern Sicily; they would be important pathways for magma uprise to the surface that will keep on feeding the eruptive activity of Etna in the near future. This study also pointed out the high instability of the southern slope of Etna, a sector where the potential hazard by lava flow invasion will remain high also in the near future.en
dc.format.extent1211633 bytesen
dc.format.extent520 bytesen
dc.format.mimetypeapplication/pdfen
dc.format.mimetypetext/htmlen
dc.language.isoEnglishen
dc.publisher.nameElsevieren
dc.relation.ispartofJournal of Volcanology and Geothermal Researchen
dc.relation.ispartofseries1-2/136(2004)en
dc.subjectMt. Etnaen
dc.subjectfault detectionen
dc.subjectsoil gasen
dc.subjecthistorical eruptive fissuresen
dc.subjecteruptive activityen
dc.subjectlocal seismicityen
dc.titleA multidisciplinary approach to detect active pathways for magma migration and eruption at Mt. Etna (Sicily, Italy) before the 2001 and 2002-03 eruptionsen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber20en
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.03. Magmasen
dc.identifier.doi10.1016/j.jvolgeores.2004.05.014en
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Thèse de doctorat d'état des-sciences naturelles, Université Pierre et Marie Curie (PARIS 6), 618 pp. Tanguy, J.C., "Les eruptions historiques de l'Etna: chronologie et localisation", Bull. Volcanol., Volume: 44, (1981), pp. 585-640 Villari, L., Rasà R., Caccamo A., "Considerazioni sull'hazard vulcanico e sul campo di sforzi nella regione etnea attraverso l'analisi morfometrica e la distribuzione plano-altimetrica dei coni avventizi", Boll. GNV, Volume: 4, (1988), pp. 600-619en
dc.description.fulltextpartially_openen
dc.contributor.authorAlparone, S.en
dc.contributor.authorAndronico, D.en
dc.contributor.authorGiammanco, S.en
dc.contributor.authorLodato, L.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
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crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.orcid0000-0003-1161-1512-
crisitem.author.orcid0000-0002-8333-1547-
crisitem.author.orcid0000-0003-2588-1441-
crisitem.author.orcid0000-0003-3599-962X-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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