2016
DOI: 10.1002/2016gl071263
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Slip heterogeneity and directivity of the ML 6.0, 2016, Amatrice earthquake estimated with rapid finite‐fault inversion

Abstract: On 24 August 2016 a magnitude ML 6.0 occurred in the Central Apennines (Italy) between Amatrice and Norcia causing nearly 300 fatalities. The main shock ruptured a NNW‐SSE striking, WSW dipping normal fault. We invert waveforms from 26 three‐component strong motion accelerometers, filtered between 0.02 and 0.5 Hz, within 45 km from the fault. The inferred slip distribution is heterogeneous and characterized by two shallow slip patches updip and NW from the hypocenter, respectively. The rupture history shows bi… Show more

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Cited by 168 publications
(227 citation statements)
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“…For the 2016 Amatrice earthquake, the distributed slip model shows two main distinctive asperities due to the lateral heterogeneity of the friction coefficient on the fault [2][3][4]. Our inverted result is consistent with previous studies [2][3][4][5][6][7].…”
Section: Discussionsupporting
confidence: 83%
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“…For the 2016 Amatrice earthquake, the distributed slip model shows two main distinctive asperities due to the lateral heterogeneity of the friction coefficient on the fault [2][3][4]. Our inverted result is consistent with previous studies [2][3][4][5][6][7].…”
Section: Discussionsupporting
confidence: 83%
“…Our inverted result is consistent with previous studies [2][3][4][5][6][7]. Because the GPS and InSAR data can provide independent constraints on the fault parameters in this study, the location of the fault rupture should be more accurate.…”
Section: Discussionsupporting
confidence: 82%
See 1 more Smart Citation
“…The 24 August M w 6.1 main shock ruptured two distinct segments of this fault system (Figure 4a), corresponding to the northern part of the~50°SW dipping Mount Gorzano Fault, which was partially activated in its southern portion during the 2009 L'Aquila earthquake [Chiaraluce et al, 2011;Bigi et al, 2013;Cheloni et al, 2014], and to the southern part of the~40°SW-dipping Mount Vettore Fault, respectively. The main shock occurred, with a bilateral rupture, between these two fault segments, possibly merging into a single SW dipping structure at the hypocentral depth [Lavecchia et al, 2016;Tinti et al, 2016;Chiaraluce et al, 2017]. …”
Section: Discussionmentioning
confidence: 99%
“…The fault geometry of the source responsible for the 24 August earthquake has already been investigated by inverting geodetic [Bignami et al, 2016;Cheloni et al, 2016;Lavecchia et al, 2016;Huang et al, 2017] and seismological [Tinti et al, 2016;Liu et al, 2017] data. Compared with the previous studies, we used an augmented geodetic data set, consisting of five InSAR interferograms and of the full set of GPS displacements.…”
Section: The 24 August Amatrice Earthquakementioning
confidence: 99%