Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/2404
AuthorsCucci, L.* 
Tertulliani, A.* 
TitleI terrazzi marini nellÕarea di Capo Vaticano (Arco Calabro): solo un record di sollevamento regionale o anche di deformazione cosismica?
Other TitlesThe marine terraces in the area of Capo Vaticano (Calabrian Arc): only a record of regional uplift or even of coseismic deformation?
Issue Date2006
Series/Report no.1/19(2006)
URIhttp://hdl.handle.net/2122/2404
Keywordsmarine terraces
Calabrian Arc
seismicity
Capo Vaticano.
Subject Classification04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology 
AbstractThe area of Capo Vaticano in western Calabria displays a well-developed suite of marine terraces. This same region was hit in 1905 by one of the strongest – and still poorly cleared – earthquakes of the instrumental era. Our revision of the intensity map of the event confirms the location of the most damaged area (between Vibo Valentia and Capo Vaticano) and indicates that the most likely source is a N80°-trending, 36(L) x 14(W) km structure with a macroseismic magnitude M=6.8±0.2. A detailed study of the marine terraces shows that sustained uplift has been the long-term dominant process of tectonic deformation in this area over the past 700 kyr, with an average long-term uplift rate slightly less than 1.0 mm/yr, and that terraces are tilted northward. Moreover, the four lowest paleoshorelines are displaced by a WNW-ESE trending fault, that indicates that the fault is active in the last 215,000 years with mean vertical slip rates of 0.12-0.16 mm/yr. Finally, we perform a qualitative comparison between the set of geological, topographic and macroseismic data available and the expected deformation fileds induced by each of the afore-mentioned faults. It is therefore suggested that the good response of the WNW-trending fault strenghtens the hypothesis of this structure as the source of the 1905 earthquake.
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