Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8211

Authors: Bonforte, A.*
Carnazzo, A.*
Gambino, S.*
Guglielmino, F.*
Obrizzo, F.*
Puglisi, G.*
Title: A multidisciplinary study of an active fault crossing urban areas: The Trecastagni Fault at Mt. Etna (Italy)
Title of journal: Journal of volcanology and geothermal research
Series/Report no.: /251(2013)
Publisher: Elsevier Science Limited
Issue Date: 2013
DOI: 10.1016/j.jvolgeores.2012.05.001
Keywords: InSAR Levelling Fault Volcano-tectonics Earthquakes
Abstract: The Trecastagni Fault is a NNW–SSE tectonic structure in the densely inhabited southern flank of Mt. Etna, characterised by evident morphological scarps and movements of normal and right-lateral type that directly affect roads and buildings. The fault is affected by continuous dynamics with intermittent accelerations accompanied with shallow seismicity. It has an important role in the instability affecting Mt. Etna's south-eastern flank and represents part of the southern boundary of the unstable sector. The motion of the fault between 2005 and 2011 has been analysed by using a multi-disciplinary approach involving terrestrial and satellite ground deformation data. Active monitoring systems able to investigate the fault in detail are extensometers, a levelling network and InSAR. Two episodes of acceleration were recorded at the end of 2009 and during 2010. Data evidences that the acceleration episodes affected only portions of the fault and that stress may accumulate and be periodically released. Although bothmagmatic processes (inflation or intrusive episodes) and flank dynamics influence the occurrence of the TF acceleration episodes, the dragging effect of the overall seaward sliding of the south-eastern flank is evident and it causes the subsidence of the hangingwall, accumulating stress on the fault that is periodically seismically released.
Appears in Collections:Papers Published / Papers in press
04.03.06. Measurements and monitoring

Files in This Item:

File SizeFormatVisibility
Bonforte_et_al_JVGR_2012_Trecastagni.pdf2.96 MBAdobe PDFonly authorized users View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA