Author: M. Kiszely 1
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  • 1 Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences Department Seismosmology Meredek u. 18. H-1118 Budapest
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In the seismological research it is very important to use a correct earthquake catalogue that provides a strong basis for indicating seismic sources and for developing seismotectonic models. Homogeneity is expected from the catalogue and desirable to indicate data that are derived from explosions. The spectral analysis provides means to discriminate explosions from earthquakes. The quarry-blasts have simpler spectra than earthquakes. We estimate coda attenuation Qc for quarry-blasts that occurred in Vértes mountains. It has been found that the coda decay rate Qc is significantly lower for quarry-blasts than for earthquakes. At 6 Hz and 10 Hz there are great differences between explosions and earthquakes.

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