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Authors: Fratarcangeli, Francesca* 
Savastano, Giorgio* 
Pietrantonio, Grazia* 
D'Achille, Maria Chiara* 
Mazzoni, Augusto* 
Riguzzi, Federica* 
Devoti, Roberto* 
Crespi, Mattia* 
Title: Static vs Real-Time Coseismic Offset Comparison: The test case of 30 October, 2016 Central Italy earthquake
Issue Date: 2018
Publisher: AUTh - School of Rural and Surveying Engineering
ISBN: 978-960-89704-4-1
Keywords: Coseismic Offset
Tectonic deformation
Central Italy 2016 earthquakes
Subject Classification04.03. Geodesy 
Abstract: The knowledge of coseismic deformations due to earthquakes represents the fundamentals on which studies on seismic cycle and fault source mechanism are based on. Geodetic methods, in particular the recent developments of GNSS monitoring, are the only onescapable of providing the displacements of reference sites due to the occurrence of significant seismic events. Usually the detection of seismic offsets is done by comparing coordinates estimated before and after the earthquake. Here, considering the test case of the 30 October, 2016 central Italy seismic event, we show that it is possible to achieve such offsets also in real-time through the application of the new functionalities of the VADASE (Variometric Approach for Displacements Analysis Stand-alone Engine) approach. The comparison between the seismic offsets coming from the two approaches (static and realtime) is shown and discussed; the mean overall agreement is at the level of about half centimetre.
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