TY  - JOUR
AU  - Geirsson, H.
AU  - Árnadóttir, T.
AU  - Völksen, C.
AU  - Jiang, W.
AU  - Sturkell, E.
AU  - Villemin, T.
AU  - Einarsson, P.
AU  - Sigmundsson, F.
AU  - Stefánsson, R.
PY  - 2006//
TI  - Current plate movements across the Mid-Atlantic Ridge determined from 5 years of continuous GPS measurements in Iceland
T2  - J. Geophys. Res.
JO  - Journal of geophysical research-atmospheres
VL  - 111
PB  - American Geophysical Union
KW  - Iceland crustal deformation
KW  - continuous GPS
KW  - 1240 Geodesy and Gravity: Satellite geodesy: results
KW  - 8150 Tectonophysics: Plate boundary: general
KW  - 1242 Geodesy and Gravity: Seismic cycle related deformations
KW  - 8158 Tectonophysics: Plate motions: present and recent
KW  - 7245 Seismology: Mid-ocean ridges
N2  - We analyze data spanning up to 5 years from 18 continuous GPS stations in Iceland, computing daily positions of the stations with three different high-level geodetic processing software packages. We observe large-scale crustal deformation due to plate spreading across Iceland. The observed plate divergence between the North American and the Eurasian plates is in general agreement with existing models of plate motion. Spreading is taken up within a ?100–150 km wide plate boundary zone that runs through the island. Of the two parallel branches of the plate boundary in south Iceland, the eastern volcanic zone is currently taking up the majority of the spreading and little is left for the western volcanic zone. The plate boundary deformation field has been locally and temporarily affected in south Iceland by two M w = 6.5 earthquakes in June 2000, inflation at Katla volcano during 2000 to 2004, and an eruption of Hekla volcano in February 2000. All stations with significant vertical velocities are moving up relative to the reference station REYK, with the highest velocity exceeding 20 mm/yr in the center of the island.
SN  - 0148-0227
UR  - http://dx.doi.org/10.1029/2005JB003717
N1  - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=5578), last updated on Mon, 27 Apr 2009 11:13:59 +0200
ID  - Geirsson_etal2006
ER  -