Evidences of a contractional pattern along the northern rim of the Hyblean Plateau (Sicily, Italy) from GPS data
Mattia, M. (Istituto Nazionale di Geofisica e Vulcanologia (Catània, Itàlia))
Bruno, V. (Istituto Nazionale di Geofisica e Vulcanologia (Catània, Itàlia))
Cannavò, F. (Istituto Nazionale di Geofisica e Vulcanologia (Catània, Itàlia))
Palano, M. (Istituto Nazionale di Geofisica e Vulcanologia (Catània, Itàlia))

Date:	2012
Abstract:	In this paper we present the main results inferred from GPS data collected between 1998. 00 and 2009. 78 along the northern rim of the Hyblean Plateau from 9 continuous and 23 survey-mode sites. From a geological point of view, this area is of great interest because 1) it represents an important piece of the collision front between Nubia and Eurasia 2) it is very close to the biggest European volcano Mount Etna and 3) it has been hit by strong earthquakes in the past (1169 and 1693) that struggled the cities of Catania, Siracusa and Ragusa provoking tens of thousands of casualties. We have found that the ground deformation pattern clearly defines an area of prevailing contraction along the northern rim of the Hyblean Plateau with a maximum negative strain-rate of about 0. 14µstrain/yr in agreement with both geological and Interferometric Synthetic Aperture Radar (InSAR) data. In addition, a transition to extensional regime is acting toward the central sector of the plateau. The velocity field referred to the Eurasian frame indicates that a large part of the plateau is dominated by a 5. 4mm/yr northward motion.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Hyblean Plateau ; GPS ; Active tectonics ; Deformation ; Geodynamic
Published in:	Geologica acta, Vol. 10, Núm. 1 (Març 2012) , p. 63-70, ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/252412
Adreça alternativa: https://revistes.ub.edu/index.php/GEOACTA/article/view/105.000001705
DOI: 10.1344/105.000001705

8 p, 4.4 MB

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