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Fault rupture during the December 26, 2018, Mw 4.9 Fleri earthquake (Mt. Etna): surface faulting in a volcano-tectonic environment

Fault rupture during the December 26, 2018, Mw 4.9 Fleri earthquake (Mt. Etna): surface faulting in a volcano-tectonic environment

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Authors

domenico bella, Franz A. Livio , Maria Francesca Ferrario, Gianluca Groppelli, Giorgio Tringali, Domenico Boso, Anna Maria Blumetti, ...  more

Abstract

On December 26, 2018, the largest instrumental earthquake ever recorded in Mt. Etna (Sicily, southern Italy) shook the eastern flank of the volcano, with epicenter near the Fleri village along the right-lateral Fiandaca Fault (focal depth less than 1 km, Mw 4.9). The mainshock was accompanied by widespread surface faulting. We surveyed and mapped the coseismic ground ruptures and collected structural data on their orientation, displacement and fabric at surface. We compared the fault zone characteristics with near surface and deeper driving factors (topography and morphology of the buried top of sedimentary basement). The shallow geological l...  more

DOI

https://doi.org/10.31223/osf.io/dmg2y

Subjects

Earth Sciences, Physical Sciences and Mathematics, Tectonics and Structure, Volcanology

Keywords

Etna earthquakes, surface faulting

Dates

Published: 2020-02-04 13:54

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License

GNU Lesser General Public License (LGPL) 2.1