Surface ruptures following the 26 December 2018, Mw 4.9, Mt. Etna earthquake, Sicily (Italy)

Riccardo Civico, Stefano Pucci, Rosa Nappi, Raffaele Azzaro, Fabio Villani, Daniela Pantosti, Francesca R. Cinti, Luca Pizzimenti, Stefano Branca, Carlo Alberto Brunori, Marco Caciagli, Massimo Cantarero, Luigi Cucci, Salvatore D’Amico, Emanuela De Beni, Paolo Marco De Martini, Maria Teresa Mariucci, Paola Montone, Rosella Nave, Tullio Ricci, Vincenzo Sapia, Alessandra Smedile, Gabriele Tarabusi, Roberto Vallone and Alessandra Venuti

Journal of Maps, 2019, vol. 15, issue 2, 831-837

Abstract: We present a 1:10,000 scale map of the coseismic surface ruptures following the 26 December 2018 Mw 4.9 earthquake that struck the eastern flank of Mt. Etna volcano (southern Italy). Detailed rupture mapping is based on extensive field surveys in the epicentral region. Despite the small size of the event, we were able to document surface faulting for about 8 km along the trace of the NNW-trending active Fiandaca Fault, belonging to the Timpe tectonic system in the eastern flank of the volcano. The mapped ruptures are characterized in most cases by perceivable opening and by a dominant right-oblique sense of slip, with an average slip of about 0.09 m and a peak value of 0.35 m. It is also noteworthy that the ruptures vary significantly in their kinematic expression, denoting locally high degree of complexity of the surface faulting.

Date: 2019
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DOI: 10.1080/17445647.2019.1683476

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