scholarly journals Coseismic deformation of the destructive April 6, 2009 L'Aquila earthquake (central Italy) from GPS data

2009 ◽  
Vol 36 (17) ◽  
Author(s):  
M. Anzidei ◽  
E. Boschi ◽  
V. Cannelli ◽  
R. Devoti ◽  
A. Esposito ◽  
...  
2015 ◽  
Vol 58 (2) ◽  
Author(s):  
Manuela Volpe ◽  
Simone Atzori ◽  
Antonio Piersanti ◽  
Daniele Melini

<p>We present a Finite Element inverse analysis of the static deformation field for the M<sub>w</sub>= 6.3, 2009 L’Aquila earthquake, in order to infer the rupture slip distribution on the fault plane. An univocal solution for the rupture slip distribution has not been reached yet with negative impact for reliable hazard scenarios in a densely populated area. In this study, Finite Element computed Green’s functions were implemented in a linear joint inversion scheme of geodetic (GPS and InSAR) and seismological (strong motion) coseismic deformation data. In order to fully exploit the informative power of our dense dataset and to honor the complexities of the real Earth, we implemented an optimized source model, represented by a fault plane subdivided in variable size patches, embedded in a high-resolution realistic three-dimensional model of the Apenninic seismo-tectonic setting, accounting for topographic reliefs and rheological heterogeneities deduced from local tomography. We infer that the investigated inversion domain contains two minima configurations in the solution space, i.e. a single- and a double-patch slip distribution, which are almost equivalent, so that the available datasets and numerical models are not able to univocally discriminate between them. Nevertheless our findings suggest that a two high-slip patch pattern is slightly favoured.</p>


2010 ◽  
Vol 25 (11) ◽  
pp. 1754-1764 ◽  
Author(s):  
Antonella Amoruso ◽  
Luca Crescentini ◽  
Marco Petitta ◽  
Sergio Rusi ◽  
Marco Tallini

2010 ◽  
Vol 37 (6) ◽  
pp. n/a-n/a ◽  
Author(s):  
P. Boncio ◽  
A. Pizzi ◽  
F. Brozzetti ◽  
G. Pomposo ◽  
G. Lavecchia ◽  
...  

2009 ◽  
Vol 36 (17) ◽  
Author(s):  
R. J. Walters ◽  
J. R. Elliott ◽  
N. D'Agostino ◽  
P. C. England ◽  
I. Hunstad ◽  
...  

2016 ◽  
Vol 59 ◽  
Author(s):  
Simone Marzorati ◽  
Marco Cattaneo ◽  
Massimo Frapiccini ◽  
Giancarlo Monachesi ◽  
Chiara Ladina

The seismicity of the last four years before the August 24 2016 01:36 UTC M<sub>W</sub> 6.0 earthquake that struck central Italy is presented with the aim to understand the preparatory phase of the event. In contrast with the 2009 L’Aquila earthquake that was preceded by a seismic sequence and the 2013-2015 Gubbio seismic swarm that, to date, is ended without any strong event, our preliminary results don’t show seismic sequences in the last months previous the mainshock of the August 24 2016 and a low similarity between seismicity clusters in the last four years and the foreshocks.


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