Geodetic investigation of the 13 May 1995 Kozani - Grevena (Greece) earthquake
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England, PC
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Parsons, BE
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Veis, G
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Clarke, PJ
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Paradissis, D
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Billiris, H
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Briole, P
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Ruegg, J-C
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The M(s) = 6.6 13 May 1995 Kozani - Grevena earthquake struck a region of low historical seismic activity which includes a 10-year-old triangulation network in northern Greece. After the earthquake, monuments from this network were occupied with GPS to measure co-seismic displacements. Inversion of the co-seismic displacement field to yield a source mechanism is achieved by use of a hybrid simplex - Monte-Carlo method which requires no a priori constraints. The model focal mechanism agrees well with the global CMT solution and locally observed aftershocks, but implies a significantly higher scalar moment than do seismological or SAR interferometry studies, and has a longer fault length than the model based on SAR interferometry.
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