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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/nhess-2016-313
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
26 Oct 2016
Review status
This discussion paper has been under review for the journal Natural Hazards and Earth System Sciences (NHESS). The manuscript was not accepted for further review after discussion.
Shallow subsurface geology and seismic microzonation in a deep continental basin. The Avezzano Town, Fucino basin (central Italy)
Paolo Boncio1, Giuliano Milana2, Fabrizio Cara2, Giuseppe Di Giulio3, Deborah Di Naccio3, Daniela Famiani2, Francesca Liberi1, Fabrizio Galadini2, Gianluigi Rosatelli1, and Maurizio Vassallo3 1Dep. DiSPUTer, "G. D'Annunzio" University of Chieti-Pescara, Chieti, 66013, Italy
2INGV, Rome, 00143, Italy
3INGV, L'Aquila, 67100, Italy
Abstract. We present detailed geological investigations aimed at the reconstruction of the shallow subsurface geology, and associated local seismic hazard, of the Avezzano town in the Quaternary Fucino basin (central Apennines). This work shows a basic (Level 1) seismic microzonation (SM) of the Avezzano town, focusing the attention on geologic constraints. We also discuss some methodological procedures of SM.

Level 1 SM involves a reconstruction of the subsurface geological model achieved by a multidisciplinary approach synthesized in two main thematic maps and geologic sections. The first map, containing essential geologic information, is formed by overlapping layers (geological units, litho-technical units, and geomorphological/structural features). The second map is a summary map, easily accessible to non-geologist earthquake scientists/technicians, which synthesizes surface geology, subsurface data and resonance frequencies into homogeneous microzones. The two maps are tools for land and urban planning.

The Avezzano area provides a case study of shallow subsurface geology and site effects in a deep continental basin environment, and is of potential interest for similar geologic contexts worldwide. Within the investigated area, almost all the possible earthquake-induced effects can occur, such as (a) stratigraphic amplifications in a wide range of resonance frequencies (from 0.4 to > 10 Hz); (b) liquefaction; (c) coseismic surface faulting; (d) basin-edge effects; and (e) slope instability.


Citation: Boncio, P., Milana, G., Cara, F., Di Giulio, G., Di Naccio, D., Famiani, D., Liberi, F., Galadini, F., Rosatelli, G., and Vassallo, M.: Shallow subsurface geology and seismic microzonation in a deep continental basin. The Avezzano Town, Fucino basin (central Italy), Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2016-313, 2016.
Paolo Boncio et al.
Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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RC1: 'Review of the manuscript: “Shallow subsurface geology and seismic microzonation in a deep continental basin. The Avezzano Town, Fucino basin (central Italy)” by Boncio et al.', Anonymous Referee #1, 14 Nov 2016 Printer-friendly Version 
AC1: 'Author reply to referee #1 comments on “Shallow subsurface geology and seismic microzonation in a deep continental basin. The Avezzano town, Fucino basin (central Italy)” by Paolo Boncio et al.', Paolo Boncio, 01 Feb 2017 Printer-friendly Version 
 
RC2: 'comments by reviewer', Anonymous Referee #2, 24 Nov 2016 Printer-friendly Version 
AC2: 'Author reply to referee #2 comments on “Shallow subsurface geology and seismic microzonation in a deep continental basin. The Avezzano town, Fucino basin (central Italy)” by Paolo Boncio et al.', Paolo Boncio, 01 Feb 2017 Printer-friendly Version 
 
RC3: 'Review of the manuscript “Shallow subsurface geology and seismic microzonation in a deep continental basin. The Avezzano Town, Fucino basin (central Italy)"', Anonymous Referee #3, 28 Nov 2016 Printer-friendly Version 
AC3: 'Author reply to referee #3 comments on “Shallow subsurface geology and seismic microzonation in a deep continental basin. The Avezzano town, Fucino basin (central Italy)” by Paolo Boncio et al.', Paolo Boncio, 01 Feb 2017 Printer-friendly Version 
 
RC4: 'General and Specific comments', Anonymous Referee #4, 30 Nov 2016 Printer-friendly Version 
AC4: 'Author reply to referee #4 comments on “Shallow subsurface geology and seismic microzonation in a deep continental basin. The Avezzano town, Fucino basin (central Italy)” by Paolo Boncio et al.', Paolo Boncio, 01 Feb 2017 Printer-friendly Version 
Paolo Boncio et al.
Paolo Boncio et al.

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Short summary
The paper discusses geological aspects, methodological procedures of seismic microzonation and the implications on seismic site response of an urbanized area in a geologic environment of deep continental basin (the Avezzano town in the Fucino continental basin of central Apennines, Italy). The paper is of potential interest for the geological community and also for non-geologist scientists/technicians/decision makers working in the field of earthquake hazard.
The paper discusses geological aspects, methodological procedures of seismic microzonation and...
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