Publication Date:
2017-11-22
Description:
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.
Description:
Published
Description:
2138–2147
Description:
1T. Deformazione crostale attiva
Description:
2T. Sorgente Sismica
Description:
JCR Journal
Keywords:
coseismic effects
;
surface faulting
;
Amatrice
;
Active tectonics
;
04.06. Seismology
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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