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(Article of periodic en Anglais - 2012)

Document title

From surface geology to aftershock analysis : Constraints on the geometry of the L’Aquila 2009 seismogenic fault system

Authors(s) and Affiliation(s)

LAVECCHIA G. ;

Abstract

The aim of this study is the definition of the geometry and structural style of the extensional fault system involved during the L’Aquila 2009 seismic sequence. The surface tectonic setting of the late Quaternary faults in the epicentral areas (i.e., the Paganica, Mt. Gorzano and Montereale faults in northwestern Abruzzo) was defined by integrating data from the literature with original field work. Consistent geometric and kinematic correlations between the geological and seismological data were observed. The seismic sequence reactivated 4 well-distinguished fault sources differing in geometry, size and the degree of involvement. The L’Aquila 2009 seismic sequence did not reactivate the entire surface of the involved faults. Nevertheless, on the basis of other geological and seismological constraints, the overall fault extent is schematically reconstructed and parameterised. Some considerations related to the structural style of the intra-Apennine Quaternary extensional structures and their patterns at depth are advanced. - (NF)

Source

Article of periodic

published at : Italian Journal of Geosciences / ISSN 2038-1719

Editor : Società Geologica Italiana, Roma - ITALIE (2009)

Millesime : 2012, vol. 131, no3 [pp. 330-347]

Bibliographic references : 2 p.

Collation : 7 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 5205

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.3301/IJG.2012.24

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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