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Authors: Amoruso, A.*
Crescentini, L.*
D'Anastasio, E.*
De Martini, P. M.*
Title: Clues of postseismic relaxation for the 1915 Fucino earthquake (central Italy) from modeling of leveling data
Title of journal: Geophysical Research Letters
Series/Report no.: / 32 (2005)
Publisher: AGU
Issue Date: 2005
DOI: 10.1029/2005GL024139
Keywords: postseismic slip
leveling data
1915 Fucino earthquake
Abstract: We study five high precision leveling lines located around the epicentral area of 13 January 1915, Mw = 6.7 Fucino earthquake (Italy), that possibly recorded late stage postseismic relaxation movements. The geodetic signal is expected to comprise both large-scale uplift of the Apennines and postseismic relaxation effects. In order to verify this hypothesis and to estimate the amount of each contribution, we compute gravitational visco-elastic postseismic relaxation by inverting leveling data. Results indicate that the elastic upper crust is relatively thin (about 10 km) and post-seismic contribution could be set at 30% of the geodetic signal. Model parameters are consistent with previous knowledge of the 1915 Fucino earthquake source, local seismic hypocentral determinations and crustal models derived from surface waves.
Appears in Collections:04.03.01. Crustal deformations
Papers Published / Papers in press

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