Abstract
The Seismic lines Offshore Mount Etna (SOME) database is presented. It consists of multichannel high-resolution seismic data acquired in 2005 off-shore Mount Etna (eastern Sicily). We describe first the acquisition of seismic lines and then the architecture of the data base. Finally we describe a very basic interpretation of some seismic lines to provide clear example of the potentiality of the seismic data sets in addressing relevant issues such as the occurrence of slope instabilities and the deformation style of the continental margin off shore mount Etna.
Highlights
Flank instability and collapse characterize the dynamics of many volcanoes [e.g., Borgia 1994, Borgia et al 2000, Milia et al 2003, Masson et al 2006, Milia et al 2012]
The largest volcano in Europe, has its structural dynamics principally characterized by volcanic spreading, which results in an overall seaward movement of its eastern sector, accommodated mostly by a large deformation zone in the south-east [Borgia et al 1992, Lundgren et al 2004, Catalano et al 2004] and by the transtensional Pernicana Fault in the north [Groppelli and Tibaldi 1999, Tibaldi and Groppelli 2002]
We provide a description of the seismic survey, present the structure of the data base “Seismic multichannel data Offshore Mount Etna” (SOME) and discuss some interpreted seismic profiles of the data base
Summary
Flank instability and collapse characterize the dynamics of many volcanoes [e.g., Borgia 1994, Borgia et al 2000, Milia et al 2003, Masson et al 2006, Milia et al 2012]. Recent studies define a complex structural setting of the area offshore Mount Etna (Figure 1) due to the co-occurrence of continental slope dynamics, magmatic and tectonics processes [Doglioni et al 2001, Froger et al 2001, Chiocci et al 2011, Argnani et al 2013, Carlino et al 2016, Gross et al 2014, Gross et al 2016] All these processes can increase the tsunamigenic potential of the area being the problem of an assessment of the volcano flank-failure hazard very important [Pareschi et al 2006, Billi et al 2008, Argnani et al 2009, Favalli et al 2009, Grezio et al 2012, Barbano et al 2014, Kawamura et al 2014]. The SOME database is open access to provide the maximum diffusion and sharing of multichannel seismic data and to offer the possibility to analyse these data to the scientific community
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