Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8139

Authors: Galvani, A.*
Anzidei, M.*
Devoti, R.*
Esposito, A.*
Pietrantonio, G.*
Pisani, A. R.*
Riguzzi, F.*
Serpelloni, E.*
Title: The interseismic velocity field of the Central Apennine from a dense GPS network
Title of journal: Annals of Geophysics
Series/Report no.: 5/55 (2012)
Issue Date: 2012
DOI: 10.4401/ag-5634
URL: http://www.annalsofgeophysics.eu/index.php/annals/article/view/5634/6169
Keywords: Central Apennines, GPS velocity field, solutions combination, GPS surveys
Abstract: Since 1999 we have repeatedly surveyed the Central Apennines by means of a dense survey style geodetic network (CAGeoNet) consisting in 123 benchmarks distributed in an area of ~180 x 130 km extended from the Tyrrhenian Sea to the Adriatic Sea with an average inter-site distance of 3-5 km. The network is located across the main seismogenic structures of the region, able to generate destructive earthquakes. Here we show the horizontal GPS velocity field of the CaGeoNet and the available continuous GPS (CGPS) stations in this region, that are estimated from their position time series in the time span 1999-2007. Data have been analyzed using Bernese and Gamit software and the two solutions have been rigorously combined to minimize software-dependent systematic errors. We analyze the strain rate field, which shows a region characterized by extension located along the axis of the Apennines chain, with values ranging from 2 to 66 10-9 yr-1 and a relative minimum of 20 10-9 yr-1 located in the L’Aquila basin area. Our velocity field represents an improved estimation of the ongoing elastic inter-seismic deformation of central Apennines in particular of the L’Aquila earthquake of April 6th, 2009 area.
Appears in Collections:Papers Published / Papers in press
04.03.07. Satellite geodesy
04.03.01. Crustal deformations
04.07.07. Tectonics
04.07.02. Geodynamics

Files in This Item:

File Description SizeFormatVisibility
Galvani_et_al.pdfMain article728.24 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA