Surface faulting during the August 24, 2016, Central Italy earthquake (Mw 6.0): preliminary results

• Published in: Annals of geophysics Vol. 59
• Main Authors: Franz A. Livio, A. M. Michetti, E. Vittori, L. Gregory, L. Wedmore, L. Piccardi, E. Tondi, G. Roberts, CENTRAL ITALY EARTHQUAKE W.G., A. M. Blumetti, L. Bonadeo, F. Brunamonte, V. Comerci, P. Dimanna, M. F. Ferrario, J. Faure Walker, C. Frigerio, F. Fumanti, L. Guerrieri, F. Iezzi, G. Leoni, K. McCaffrey, Z. Mildon, R. Phillips, E. Rhodes, R. J. Walters, M. Wilkinson
• Format: Journal Article
• Language: English
• Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 01-01-2016
• Subjects: Amatrice earthquake; On-fault effects; Surface faulting
• ISSN: 1593-5213; 2037-416X
• DOI: 10.4401/ag-7197

We present some preliminary results on the mapping of coseismically-induced ground ruptures following the Aug. 24, 2016, Central Italy earthquake (Mw 6.0). The seismogenic source, as highlighted by InSAR and seismological data, ruptured across two adjacent structures: the Vettore and Laga faults. We collected field data on ground breaks along the whole deformed area and two different scenarios of on-fault coseismic displacement arise from these observations. To the north, along the Vettore fault, surface faulting can be mapped quite continuously along a well-defined fault strand while such features are almost absent to the south, along the Laga fault, where flysch-like marly units are present. A major lithological control, affects the surface expression of faulting, resulting in a complex deformation pattern.