Geodetic model of the 2016 Central Italy earthquake sequence inferred from InSAR and GPS data
Daniele Cheloni,V. De Novellis,Matteo Albano,Andrea Antonioli,Marco Anzidei,Simone Atzori,Antonio Avallone,Christian Bignami,Manuela Bonano,Stefano Calcaterra,Raffaele Castaldo,Francesco Casu,Gianpaolo Cecere,C. De Luca,Roberto Devoti,D. Di Bucci,Antonietta M. Esposito,Alessandro Galvani,Piera Gambino,R. Giuliani,Riccardo Lanari,Michele Manunta,Mariarosaria Manzo,M. Mattone,Antonio Montuori,Antonio Pepe,Susi Pepe,Giuseppe Pezzo,Grazia Pietrantonio,Marco Polcari,Federica Riguzzi,Stefano Salvi,Vincenzo Sepe,Enrico Serpelloni,Giuseppe Solaro,Salvatore Stramondo,Pietro Tizzani,Cristiano Tolomei,Elisa Trasatti,Emanuela Valerio,Ivana Zinno,Carlo Doglioni,Carlo Doglioni +42 more
TLDR
In this article, the authors investigate a large geodetic data set of interferometric synthetic aperture radar (InSAR) and GPS measurements to determine the source parameters for the three main shocks of the 2016 Central Italy earthquake sequence on 24 August and 26 and 30 October.Abstract:
We investigate a large geodetic data set of interferometric synthetic aperture radar (InSAR) and GPS measurements to determine the source parameters for the three main shocks of the 2016 Central Italy earthquake sequence on 24 August and 26 and 30 October (Mw 6.1, 5.9, and 6.5, respectively). Our preferred model is consistent with the activation of four main coseismic asperities belonging to the SW dipping normal fault system associated with the Mount Gorzano-Mount Vettore-Mount Bove alignment. Additional slip, equivalent to a Mw ~ 6.1–6.2 earthquake, on a secondary (1) NE dipping antithetic fault and/or (2) on a WNW dipping low-angle fault in the hanging wall of the main system is required to better reproduce the complex deformation pattern associated with the greatest seismic event (the Mw 6.5 earthquake). The recognition of ancillary faults involved in the sequence suggests a complex interaction in the activated crustal volume between the main normal faults and the secondary structures and a partitioning of strain release.read more
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Dual control of fault intersections on stop-start rupture in the 2016 Central Italy seismic sequence
Richard J. Walters,L. C. Gregory,Luke N J Wedmore,T. J. Craig,Ken McCaffrey,M. W. Wilkinson,Jinju Chen,Zhenhong Li,John Elliott,H. Goodall,Francesco Iezzi,Franz Livio,Alessandro Maria Michetti,Gerald P. Roberts,Eutizio Vittori +14 more
TL;DR: In this article, the authors exploit a wealth of geodetic, seismological and field data to understand the spatio-temporal evolution of the sequence and suggest that intersections between major and subsidiary faults controlled the extent and termination of rupture in each event in the sequence, and fluid diffusion, channelled along these same fault intersections, may also determined the timing of rupture reinitiation.
Journal ArticleDOI
The Parallel SBAS Approach for Sentinel-1 Interferometric Wide Swath Deformation Time-Series Generation: Algorithm Description and Products Quality Assessment
Michele Manunta,Claudio De Luca,Ivana Zinno,Francesco Casu,Mariarosaria Manzo,Manuela Bonano,Adele Fusco,Antonio Pepe,Giovanni Onorato,Paolo Berardino,Prospero De Martino,Riccardo Lanari +11 more
TL;DR: The presented results demonstrate the capability of the implemented P-SBAS approach to efficiently and effectively process large S-1 IW data sets relevant to extended portions of the earth surface, paving the way to the systematic generation of advanced DInSAR products to monitor ground displacements at a very wide spatial scale.
Journal ArticleDOI
Complex fault geometry and rupture dynamics of the Mw 6.5, 2016, October 30th central Italy earthquake
Laura Scognamiglio,Elisa Tinti,Emanuele Casarotti,Stefano Pucci,Fabio Villani,Massimo Cocco,Federica Magnoni,Alberto Michelini,Douglas S. Dreger +8 more
TL;DR: In this paper, the authors study the October 30th 2016 Norcia earthquake (MW 6.5) to retrieve the rupture history by jointly inverting seismograms and coseismic GPS displacements obtained by dense local networks.
Journal ArticleDOI
Seismic Reflection Profiles and Subsurface Geology of the Area Interested by the 2016–2017 Earthquake Sequence (Central Italy)
Massimiliano Porreca,Massimiliano Porreca,Giorgio Minelli,Maurizio Ercoli,A. Brobia,Paolo Mancinelli,Francesco Cruciani,Claudia Giorgetti,Filippo Carboni,Francesco Mirabella,Gian Paolo Cavinato,Andrea Cannata,Andrea Cannata,Cristina Pauselli,Massimiliano Rinaldo Barchi +14 more
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Multi-segment rupture of the 2016 Amatrice-Visso-Norcia seismic sequence (central Italy) constrained by the first high-quality catalog of Early Aftershocks.
Luigi Improta,Diana Latorre,Lucia Margheriti,Anna Nardi,Alessandro Marchetti,Anna Maria Lombardi,Barbara Castello,Fabio Villani,Maria Grazia Ciaccio,Francesco Mariano Mele,Milena Moretti +10 more
TL;DR: Aftershock patterns reveal that the Amatrice Mw5.4 aftershock and the Norcia mainshock ruptured two distinct antithetic faults 3–4 km apart, and suggest to consider both the MST cross structure and the subsidiary antithetic fault in the finite-fault source modelling of thenorcia earthquake.
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Some thoughts on the use of InSAR data to constrain models of surface deformation : noise structure and data downsampling
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Finite fault inversion of DInSAR coseismic displacement of the 2009 L'Aquila earthquake (central Italy)
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