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Coseismic ruptures of the 24 August 2016, Mw 6.0 Amatrice earthquake (central Italy)
Author(s)
Language
English
Obiettivo Specifico
1T. Deformazione crostale attiva
2T. Sorgente Sismica
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/44 (2017)
Pages (printed)
2138–2147
Issued date
2017
Subjects
Abstract
On 24 August 2016, a Mw 6.0 normal-faulting earthquake struck central Italy, causing about 300
fatalities and heavy damage. A geological survey collected the coseismic effects observed at the surface in
order to evaluate two competing hypotheses about their nature: surface faulting versus gravitational
deformation. We find that the most significant geological effect is a 5.2 km long alignment of ground ruptures
along the Mount Vettore Fault System. These ruptures are independent from lithology, topography,
morphology, and change in slope and exhibit an average dip-slip displacement of ~13 cm. Geometry,
kinematics, and dimensional properties of this zone of deformation strongly lead us to favor the primary
surface faulting hypothesis that fits well the predicted estimates from experimental scaling law relationships.
Our study provides relevant hints for surface faulting in extensional domains, contributing to implement the
worldwide database of the moderate earthquakes.
fatalities and heavy damage. A geological survey collected the coseismic effects observed at the surface in
order to evaluate two competing hypotheses about their nature: surface faulting versus gravitational
deformation. We find that the most significant geological effect is a 5.2 km long alignment of ground ruptures
along the Mount Vettore Fault System. These ruptures are independent from lithology, topography,
morphology, and change in slope and exhibit an average dip-slip displacement of ~13 cm. Geometry,
kinematics, and dimensional properties of this zone of deformation strongly lead us to favor the primary
surface faulting hypothesis that fits well the predicted estimates from experimental scaling law relationships.
Our study provides relevant hints for surface faulting in extensional domains, contributing to implement the
worldwide database of the moderate earthquakes.
Type
article
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Pucci_GRL_2017.pdf
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