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Authors: Loreto, M. F.* 
Zgur, F.* 
Facchin, L.* 
Fracassi, U.* 
Pettenati, F.* 
Tomini, I.* 
Burca, M.* 
Diviacco, P.* 
Sauli, C.* 
Cossarini, G.* 
De Vittor, C.* 
Sandron, D.* 
Explora technicians’ team, .* 
Title: In Search of New Imaging For Historical Earthquakes: A New Geophysical Survey Offshore Western Calabria (Southern Tyrrhenian Sea, Italy)
Issue Date: 2012
Series/Report no.: /53 (2012)
DOI: 10.4430/bgta0046
Keywords: 1905 earthquake
active tectonics
mud vulcanoes
Gulf of Sant’Eufemia
Subject Classification04. Solid Earth::04.04. Geology::04.04.04. Marine geology 
04. Solid Earth::04.04. Geology::04.04.08. Sediments: dating, processes, transport 
04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy 
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics 
Abstract: During the summer of 2010 we carried out a survey to acquire a multidisciplinary dataset within the Gulf of Sant'Eufemia (SE Tyrrhenian sea, Italy), with the aim of studying the active tectonics affecting the region, including that potentially responsible for key, elusive earthquakes such as the to-date unexplained 8 September 1905 (Mw 7 - 7.5) earthquake. The data here analysed highlight the presence of several tectonic and morphologic features characterizing the investigated area. We have recognized the Angitola Channel, a deep and wide canyon showing a straight trend in its coastward segment, and a meandering trend in the seaward segment. Based on morpho-structural elements, we maintain that the Angitola Channel could be tectonically controlled. Moreover, several gravitational instabilities as slumps and collapses affect the flanks of the morpho-structural high, detected offshore Capo Vaticano. Very high resolution seismic data have unveiled the presence of numerous fluid escape features and several mud volcanoes straddling the sector from the coastline to seaward.
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