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Authors: Achilli, V.*
Anzidei, M.*
Baldi, P.*
Broccio, F.*
Velardita, R.*
Title: The Southeastern Sicily GPS network
Issue Date: May-1995
Series/Report no.: 38/2
Keywords: Global Positioning System (GPS)
crustal deformations
Abstract: The area located between Catania and Syracuse (Southeastern Sicily), characterised by the presence of the Simeto-Scordia-Lentini graben, was affected in the past by a strong seismicity as proved by the occurrence of seismic events strong enough to reach the XI degree of the MCS scale. In particular the January 11 th, 1693 (l = XI MCS) earthquake with a magnitude over 7.5 (estimated), caused huge damage and a great loss of human lives. Following the last seismic event which occurred on December 13th, 1990 (Ml = 5.4) which caused heavy damage and many victims in the Catania-Syracuse area, a geodetic Global Positioning System network (GPS) was set up with the aim of monitoring ground movements in one of the Italian areas subjected to high seismic risk, This "pace geodesy technique supplies high precision measurements and represent, a powerful new tool for investigating both regional stress fields and the evolution of local tectonic areas. The GPS network will allow the detection of ground movements with a centimetric accuracy through repeated surveys in time. The results obtained in two surveys carried out il1 1991 al1d 1993, are described in this paper.
Appears in Collections:04.03.99. General or miscellaneous
04.03.01. Crustal deformations
Annals of Geophysics

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