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Discrimination of quarry-blasts from earthquakes using spectral analysis and coda waves in Hungary

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Abstract

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 Q c for quarry-blasts that occurred in Vértes mountains. It has been found that the coda decay rate Q c 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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Authors and Affiliations

  1. Department Seismosmology, Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences, H-1118, Budapest, Meredek u. 18, Hungary

    M. Kiszely

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  1. M. Kiszely
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Kiszely, M. Discrimination of quarry-blasts from earthquakes using spectral analysis and coda waves in Hungary. Acta Geod. Geoph. Hung 36, 439–448 (2001). https://doi.org/10.1556/AGeod.36.2001.4.5

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  • DOI: https://doi.org/10.1556/AGeod.36.2001.4.5

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