1887

Abstract

Summary

The Romanian Seismic Catalogue has been contaminated in the last period with events from anthropic sources, especially in the regions with active quarry activities.

In this paper, we chose as the study area the Targu-Jiu zone, located in Southern Carpathians, where the National Seismic Network (RSN) recorded both crustal events and quarry blasts.

For discrimination purposes, the events recorded in a 10-km radius circle around each quarry will be analysed through several methods, to properly identify the quarry blasts. Thus, statistical methods are used, as well as the cross-correlation technique for the recordings of Gura Zlata (GZR) seismic station.

In the first stage, a statistical analysis of the events recorded in the quarries area is performed, based on depth intervals, magnitude, working hours and days of the week. The spectrogram analyses are investigated with the DTK-GPMCC and DTK-DIVA extended CTBTO NDC-in-a-box packages developed by the CEA-DASE.

The events identified on the seismic recordings are used as templates for the cross-correlation method applied to the events recorded by the GZR for the 2010–2020 time interval.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.202149BGS86
2021-10-10
2024-04-28
Loading full text...

Full text loading...

References

  1. Bormann, P.
    (Ed.) [2013] New Manual of Seismological Observatory Practice (NMSOP-2), Potsdam: Deutsches GeoForschungszentrum GFZ, IASPEI;
    [Google Scholar]
  2. CansiY.
    [1995] An automatic seismic event processing for detection and location: The PMCC method, Geophys. Res. Lett., 22, 1021–1024;
    [Google Scholar]
  3. Campus, P., Christie, D.R.
    [2010] Worldwide observations of infrasonic waves. In: Le Pichon, A., et al. (Eds.), Infrasound Monitoring for Atmospheric Studies, Chapter 6. Springer Science Business Media B.V, 181–230;
    [Google Scholar]
  4. Dinescu, R., Ghica, D., Popa, M.
    [2021] Identification of quarry blasts in the Deva region (Romania) using seismo-acoustic analysis, in ChiteaF. (Ed.), Geoscience for Society, Education and Environment, Ed. AcademieiRomane, ISBN:978_793_27_3336_3, D.O.I.10.5281/zenodo.4322617, 176–184;
    [Google Scholar]
  5. Goldstein, P., Dodge, D., Firpo, M., Minner, L.
    [2003] SAC2000: Signal processing and analysis tools for seismologists and engineers, Invited contribution to “The IASPEI International Handbook of Earthquake and Engineering Seismology”, Edited by WHKLee, H.Kanamori, P.C.Jennings, and C.Kisslinger, Academic Press, London;
    [Google Scholar]
  6. Oncescu, M.C., Marza, V.I., Rizescu, M., Popa, M.
    [1999] The Romanian earthquake catalogue between 1984–1997. In: Wenzel, F., Lungu, D., Novak, O. (Eds.), Vrancea Earthquakes: Tectonics, Hazard and Risk Mitigation. Kluwer Academic Publishers, Dordrecht, Netherlands, 43–47; Updated ROMPLUS catalogue, www.infp.ro
    [Google Scholar]
  7. Radulian, M., Popescu, E., Borleanu, F., Diaconescu, M.
    [2014] Source parameter of the December 2011 – January 2012 earthquake sequence in Southern Carpathians, Tectonophysics623 (2014) 23–38.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.202149BGS86
Loading
/content/papers/10.3997/2214-4609.202149BGS86
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error