Please use this identifier to cite or link to this item:
Authors: Danesi, S.* 
Pondrelli, S.* 
Salimbeni, S.* 
Cavaliere, A.* 
Serpelloni, E.* 
Danecek, P.* 
Massa, M.* 
Lovati, S.* 
Title: Active deformation and seismicity in the Southern Alps (Italy): the Montello hill as a case study.

Issue Date: 2015
Series/Report no.: /653 (2015)
DOI: 10.1016/j.tecto.2015.03.028
Keywords: Northern Italy
Eastern Southern Alps
Tectonic deformation
Satellite geodesy
Earthquake source observation
Continental neotectonics
Subject Classification04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics 
Abstract: The Montello anticline is a morphotectonic feature of the east pede-mountain of the South Alpine Chain in northern Italy, which lies ca. 40 km northwest of Venice, Italy. The purpose of this study is to characterize the present-day crustal deformation and seismotectonics of the Montello area through multi-parametric geophysical observations. We used new data obtained from the installation of a temporary network of 12 seismic stations and 6 GPS sites. The GPS observations indicate that there is ~1 mm/yr shortening across the Montello thrust. Sites located north of the Montello thrust front deviate from the ~NNW-ward Adria-Eurasia convergence direction, as they are constrained by a relative rotation pole in northwestern Italy that has a NNE-ward motion trend. Over 18 months, seismographic recordings allowed us to locate 142 local seismic events with Ml 0.5-3.5 with good reliability (rms <0.5). After cross-correlation analysis, we classified 42 of these events into six clusters, with cross-correlation thresholds >0.80. The source focal solutions indicate that: (i) there is thrusting seismic activity on the basal, sub-horizontal, portion of the Montello structure; and (ii) strike-slip source kinematics prevail on the western edge of the Montello hill. Our observations on the source mechanisms and the measured crustal deformation confirm that the Montello thrust is tectonically active.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
Danesi_etal.pdfMain article8.24 MBAdobe PDFView/Open
Show full item record

Page view(s)

Last Week
Last month
checked on Aug 20, 2018


checked on Aug 20, 2018

Google ScholarTM