Determination of recent crustal deformations based on precise GPS measurements in the Vogtland earthquake area |
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| Institution: | 1. Punjabi University, Patiala, Punjab, India;2. I. K. Gujral Punjab Technical University Jalandhar, Kapurthala, Punjab, India;3. Sant Longowal Institute of Engineering and Technology, Longowal, Punjab, India;1. Institute of Rock Structure and Mechanics, Czech Academy of Sciences, Czech Republic;2. Faculty of Science, Charles University in Prague, Czech Republic;3. Department of Geology, University of Cincinnati, USA;1. Department of Geological Engineering, Faculty of Mining and Geology, VSB – Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czechia;2. Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37 Brno, Czechia;3. Czech Geological Survey, Brno Branch, Leitnerova 22, 602 00 Brno, Czechia;4. Department of Geodesy and Mine Surveying, Faculty of Mining and Geology, VSB – Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czechia |
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| Abstract: | This paper presents methods and results of recent geodetic investigations in the Saxon part of the NW Bohemia/Vogtland earthquake area. The technique of precise GPS measurements and the intercomparison of successive observation epochs are described in detail. Horizontal surface deformations of the earth's crust were determined with an accuracy level of 1 mm over a range of some 104 m. The results of five GPS campaigns carried out from 1994 to 2001 reveal significant relative displacements of up to 5 mm between successive observation epochs. Furthermore, there are clear indications that the deformation process is not linear with time but correlated with the seismic activity. |
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