Publication Date:
2017-04-04
Description:
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.
Description:
Published
Description:
63-70
Description:
1.9. Rete GPS nazionale
Description:
3.2. Tettonica attiva
Description:
JCR Journal
Description:
restricted
Keywords:
Hyblean Plateau
;
GPS
;
Active tectonics
;
Geodynamic
;
04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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