Simultaneous magma and gas eruptions at three volcanoes in southern Italy: An earthquake trigger? (2009)

Research Article| March 01, 2009 Simultaneous magma and gas eruptions at three volcanoes in southern Italy: An earthquake trigger? T.R. Walter; T.R. Walter * 11Department 2: Physics of the Earth, Helmholtz Centre Potsdam, GFZ German Research Centre for Geoscience, Telegrafenberg, 14473 Potsdam, Germany *E-mail: twalter@gfz-potsdam.de. Search for other works by this author on: GSW Google Scholar R. Wang; R. Wang 11Department 2: Physics of the Earth, Helmholtz Centre Potsdam, GFZ German Research Centre for Geoscience, Telegrafenberg, 14473 Potsdam, Germany Search for other works by this author on: GSW Google Scholar V. Acocella; V. Acocella 22Dipartimento Scienze Geologiche, Università Roma Tre, Largo S.L. Murialdo 1, 00146 Rome, Italy Search for other works by this author on: GSW Google Scholar M. Neri; M. Neri 33Istituto Nazionale di Geofisica e Vulcanologica (INGV), Catania, Piazza Roma 2, 95123 Catania, Italy Search for other works by this author on: GSW Google Scholar H. Grosser; H. Grosser 11Department 2: Physics of the Earth, Helmholtz Centre Potsdam, GFZ German Research Centre for Geoscience, Telegrafenberg, 14473 Potsdam, Germany Search for other works by this author on: GSW Google Scholar J. Zschau J. Zschau 11Department 2: Physics of the Earth, Helmholtz Centre Potsdam, GFZ German Research Centre for Geoscience, Telegrafenberg, 14473 Potsdam, Germany Search for other works by this author on: GSW Google Scholar Geology (2009) 37 (3): 251–254. https://doi.org/10.1130/G25396A Article history received: 05 Aug 2008 rev-recd: 22 Oct 2008 accepted: 26 Oct 2008 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation T.R. Walter, R. Wang, V. Acocella, M. Neri, H. Grosser, J. Zschau; Simultaneous magma and gas eruptions at three volcanoes in southern Italy: An earthquake trigger?. Geology 2009;; 37 (3): 251–254. doi: https://doi.org/10.1130/G25396A Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract In September 2002, a series of tectonic earthquakes occurred north of Sicily, Italy, followed by three events of volcanic unrest within 150 km. On 28 October 2002, Mount Etna erupted; on 3 November 2002, submarine degassing occurred near Panarea Island; and on 28 December 2002, Stromboli Island erupted. All of these events were considered unusual: the Mount Etna northeast-rift eruption was the largest in 55 yr; the Panarea degassing was one of the strongest ever detected there; and the Stromboli eruption, which produced a landslide and tsunami, was the largest effusive eruption in 17 yr. Here we investigate the synchronous occurrence of these clustered events, and develop a possible explanatory model. We compute short-term earthquake-induced dynamic strain changes and compare them to long-term tectonic effects. Results suggest that the earthquake-induced strain changes exceeded annual tectonic strains by at least an order of magnitude. This agitation occurred in seconds, and may have induced fluid and gas pressure migration within the already active hydrothermal and magmatic systems. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.