A simple smoothed velocity model of the uppermost Earth’s crust derived from joint inversion of Pg and Sg waves

The paper presents some results of seismic experiments carried out on the territory of northern Moravia and Silesia, roughly delimited by the coordinates 16°E–19°E and 49°N–51°N. The experiments were aimed at compiling a velocity model of the uppermost Earth’s crust using the database of arrival tim...

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Bibliographic Details
Published in:Acta geophysica 2012-04, Vol.60 (2), p.487-497
Main Authors: Holub, Karel, Růžek, Bohuslav, Rušajová, Jana
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth crust
Earth Sciences
Geophysics
Geophysics in Geology and Mining
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Inversions
Mathematical models
northern Moravia
Plate tectonics
Propagation
Seismic engineering
Seismic phenomena
Silesia
Stations
Structural Geology
tomography
Velocity
Velocity distribution
velocity model
waves inversion
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Summary:The paper presents some results of seismic experiments carried out on the territory of northern Moravia and Silesia, roughly delimited by the coordinates 16°E–19°E and 49°N–51°N. The experiments were aimed at compiling a velocity model of the uppermost Earth’s crust using the database of arrival times of Pg and Sg waves recorded at a fairly large number of seismic stations, which enabled us to produce a simple 1D-layered velocity model of the region. The velocity model was computed using the traditional tomographic iterative process composed of consecutive solutions of linear equations. Based on the analysis of velocity distribution, it was found that the velocities of Pg and Sg waves increase from about 5.9 and 3.3 km/s at the surface, to about 6.1 and 3.5 km/s at a depth of 11 km, respectively.
ISSN:1895-6572
1895-7455
DOI:10.2478/s11600-011-0023-3