Study of site effect using mining induced seismic events and ambient noise from Karvina region

Evaluation of seismic loading in urban areas is not a simple process. The horizontal to vertical spectral ratio method technique has been often used for determination of site effect recently. Results from the re-interpretation of mining induced seismic events from Karvina region in frequency domain using archival databases will be presented in this study material. Also, spectra of continuous records (about two days) and evolution of spectra within a moving time window of the length 10 seconds are presented. These continuous records were registered on two places with different geological conditions. KEYWORDS: mining induced seismic event, ambient noise, spectral ratio, frequency analysis