Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/2949
AuthorsSalvi, S.* 
Cinti, F. R.* 
Colini, L.* 
D'Addezio, G.* 
Doumaz, F.* 
Pettinelli, E.* 
TitleInvestigation of the active Celano–L’Aquila fault system, Abruzzi
Issue Date2003
Series/Report no./ 155 (2003)
URIhttp://hdl.handle.net/2122/2949
Keywordsactive tectonics
central Italy
earthquakes
electromagnetic surveys
palaeoseismology
Subject Classification04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods 
04. Solid Earth::04.02. Exploration geophysics::04.02.05. Downhole, radioactivity, remote sensing, and other methods 
04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology 
04. Solid Earth::04.04. Geology::04.04.03. Geomorphology 
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics 
AbstractWe studied fault scarps along the northern sector of the Celano–L’Aquila fault system in the Abruzzi region (central Apennines). Up to ∼9.5 km long, 3 m high, fault scarp traces mark the slope foot of ridgetop valleys at Mt Ocre range. In order to provide direct evidence of the deformation history of these scarps, we initiated geomorphic, ground-penetrating radar (GPR)and trenching investigations. GPR investigations yielded subsurface stratigraphic features of the scarp zones, and determined the locations for trenching sites. A total of five trenches were excavated at two different sites. Structural and stratigraphic analysis of the trench exposures combined with historical considerations, showed three faulting events between 5620 BC and 1300 AD; the most recent of them occurred after 1690 BC. Each of these events produced an estimated minimum vertical displacement ranging between 0.3 and 0.5 m. Our interpretation is that the Mt Ocre fault branch represents the northernmost surface expression of a single 35 km long seismogenic structure associated with M ∼7 earthquakes. Any attempt to estimate the seismic hazard in the area must consider the presence of this important source.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
GJISalvietal.pdf27.05 MBAdobe PDFView/Open    Request a copy
Show full item record

Page view(s)

104
checked on May 24, 2017

Download(s)

28
checked on May 24, 2017

Google ScholarTM

Check