PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Classification of seismic events using linear discriminant function (LDF) in the Sakarya region, Turkey

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The Sakarya prefecture is an interesting area with various seismicity types. This activity comes from earthquakes occurring at the North Anatolian Fault Zone and from a few quarry blast areas in the region. These quarry blast recordings produce errors in the determination of active faults and mapping of the microearthquake activity. Therefore, to recognize the tectonic activity in the region, we need to be able to discriminate between earthquakes and quarry blasts in the catalogues. In this study, a statistical analysis method (linear discriminant function) has been applied to classify seismic events occurring in the Sakarya region. We used 110 seismic events that were recorded by Sakarya University Seismic Station between 2012 and 2014. Time and frequency variant parameters, maximum S wave and maximum P wave amplitude ratio (S/P), the spectral ratio (Sr), maximum frequency (fmax), and total signal duration of the waveform were used for discrimination analyses. The maximum frequency (fmax) versus time duration of the seismic signal gives a higher classification percentage (94%) than the other discriminants. At the end of this study, 41 out of 110 events (44%) are determined as quarry blasts, and 62 (56%) are considered as earthquakes.
Słowa kluczowe
Czasopismo
Rocznik
Strony
895--906
Opis fizyczny
Bibliogr. 39 poz.
Twórcy
  • Department of Geophysical Engineering, Faculty of Engineering Sakarya University Sakarya Turkey
autor
  • Department of Geophysical Engineering, Faculty of Engineering Sakarya University Sakarya Turkey
Bibliografia
  • 1. Allmann BP, Shearer PM, Hauksson E (2008) Spectral discrimination between quarry blasts and earthquakes in southern California. Bull Seismol Soc Am 98(4):2073–2079
  • 2. Ambraseys NN (2001) Reassessment of earthquakes, 1900–1999, in the Eastern Mediterranean and the Middle East. Geophys J Int 145:471–485
  • 3. Ambraseys NN (2009) Earthquakes in the eastern Mediterranean and the Middle East: a multidisciplinary study of 2,000 years of seismicity. Cambridge University Press, Cambridge
  • 4. Ataeva G, Gitterman A, Shapira A (2017) The ratio between corner frequencies of source spectra of P- and S-waves—a new discriminant between earthquakes and quarry blasts. J Seismol 21:209–220
  • 5. Barka A, Kadinsky-Cade K (1988) Strike-slip fault geometry in Turkey and its influence on earthquake activity. Tectonics 7:663–684
  • 6. Baumgardt DR, Young GB (1990) Regional seismic waveform discriminates and case-based event identification using regional arrays. Bull Seismol Soc Am 80:1874–1892
  • 7. Bennett TJ, Murphy JR (1986) Analysis of seismic discrimination capabilities using regional data from western United States events. Bull Seismol Soc Am 76:1069–1086
  • 8. Caputo R, Chatzipetors A, Pavlides S, Sboras S (2012) The Greek Database of Siesmogenic Sources (GreDaSS): state-of-the-art for northern Greece. Ann Geophys 55:5. https://doi.org/10.4401/ag-5168
  • 9. Chernobay IP, Gabsatarova IP (1999) Source classification in the Northern Caucasus. Phys Earth Planet Inter 113:183–201
  • 10. Dahy SA, Hassib GH (2010) Spectral discrimination between quarry blasts and microearthquakes in southern Egypt. Res J Earth Sci 2(1):1–7
  • 11. Emre Ö, Duman TY, Özalp S, Elmacı H, Olgun Ş, Şaroğlu Ş (2013) Active Fault Map of Turkey with Explanatory Text, General Directorate of Mineral Research and Exploration, Special Publication Series 30. Ankara, Turkey
  • 12. Fisher RA (1936) The use of multiple measurements in taxonomic problems. Ann Eugen 7:179–188
  • 13. Gitterman Y, Shapira A (1993) Spectral discrimination of underwater explosions. Isr J Earth Sci 42:37–44
  • 14. Gülen L, Pinar A, Kalafat D, Ozel N, Horasan G, Yilmazer M, Işikara AM (2002) Surface fault breaks, aftershock distribution, and rupture process of the 17 August 1999 Izmit, Turkey, earthquake. Bull Seismol Soc Am 92:230–244
  • 15. Gulia L (2010) Detection of quarry and mine blast contamination in European regional catalogues. Nat Hazards 53:229–249
  • 16. Hammer C, Ohrnberger M, Fah D (2013) Classifying seismic waveforms from scratch: a case study in the alpine environment. Geophys J Int 192:425–439. https://doi.org/10.1093/gji/ggs036
  • 17. Harvard Centroid Moment Tensor Catalog (Harvard CMT) 2018. http://www.globalcmt.org/CMTsearch.html. Accessed 3 May 2018
  • 18. Hedlin MA, Minster JB, Orcutt JA (1989) The time-frequency characteristics of quarry blasts and calibration explosions recorded in Kazakhstan. USSR Geophys J 99:109–121
  • 19. Hedlin M, Minster JB, Orcutt JA (1990) An automatic means to discriminate between earthquakes and quarry blasts. Bull Seismol Soc Am 80:2143–2160
  • 20. Horasan G, Boztepe-Güney A, Küsmezer A, Bekler F, Öğütçü Z, Musaoğlu N (2009) Contamination of seismicity catalogs by quarry blasts: an example from Istanbul and its vicinity, Northwestern Turkey. J Asian Earth Sci 34:90–99. https://doi.org/10.1016/j.jseaes.2008.03.012
  • 21. Kekovalı K, Kalafat D, Kara M, Deniz P (2011) The estimation capability of potential mining and quarry areas from seismic catalog using statistical analysis, an application to Turkey. Int J Phys Sci 6(15):3704–3714Goo
  • 22. Kim WY, Simpson DW, Richards PG (1994) High-frequency spectra of regional phases from earthquakes and chemical explosions. Bull Seismol Soc Am 84:1365–1386
  • 23. Kiszely M, Györi E (2015) Separation of quarry blasts from the aftershock sequence of the Oroszlány (Hungary) January 29, 2011 ML = 4.5. Acta Geod Geophys 50:97–107. https://doi.org/10.1007/s40328-014-0078-0
  • 24. Koch K, Fah D (2002) Identification of earthquakes and explosions using amplitude ratios: the Vogtland area revisited. Pure Appl Geophys 59:735–757
  • 25. Kortstörm J, Uski M, Tiira T (2016) Automatic classification of seismic events with a seismograph network. Comput Geosci 87:22–30
  • 26. Nalbant SS, Hubert A, King GCP (1998) Stress coupling between earthquakes in northwest Turkey and the north Aegean Sea. J Geophys Res 103:24 469–24 486
  • 27. Ögütçü Z, Horasan G, Kalafat D (2011) Investigation of micro seismic activity sources in Konya and its vicinity, Central Turkey. Nat Hazards 58:497–509
  • 28. Pondard N, Armijo R, King GCP, Meyer B, Flerit F (2007) Fault interactions in the Sea of Marmara pull-apart (North Anatolian Fault): earthquake clustering and propagating earthquake sequences. Geophys J Int 171(3):1185–1197
  • 29. Reilinger R, McClusky S, Vernant P, Lawrence S, Ergintav S, Cakmak R, Ozener H, Kadirov F, Guliev I, Stepanyan R, Nadariya M, Hahubia G, Mahmoud S, Sakr K, ArRajehi A, Paradissis D, Al-Aydrus A, Prilepin M, Guseva T, Enren E, Dmitrotsa A, Filikov SV, Gomez F, Al-Ghazzi R, Karam G (2006) GPS constraints on continental deformation in the Africa-Arabia-Eurasia continental collision zone and implications fort the Dynamics of plate interactions. J Geophys Res 111:B05411. https://doi.org/10.1029/2005JB004051
  • 30. SAC Seismic Analysis Code SAC 2000 Manuel, Lawrence Livermore National Laboratory, http://www-ep.es.llnl.gov/www-ep/esd/seismic/sac.html. Accessed 10 Oct 2017
  • 31. Şaroğlu F, Emre O, Kuşçu İ (1992) Active fault map of Turkey. Publ of General Directorate of Miner Res Explor Inst Turk Ankara
  • 32. SPSS V21 (2012) Statistical Package for the Social Sciences for Windows. IBM SPSS statistics
  • 33. Taylor SR, Denny DM, Vergino ES, Glaser RE (1989) Regional discrimination between NTS-explosions and earthquakes. Bull Seismol Soc Am 79:1142–1176
  • 34. Tibi R, Bock G, Xia Y, Baumbach M, Grosser H, Milkereit C, Karakisa S, Zünbül S, Kind R, Zschau J (2001) Rupture processes of the 1999 August 17 Izmit and November 12 Duzce (Turkey) earthquakes. Geophys J Int 144:F1–F7
  • 35. Wiemer S, Baer M (2000) Mapping and removing quarry blast events from seismicity catalogs, short notes. Bull Seismol Soc Am 90:525–530
  • 36. Wüster J (1993) Discrimination of chemical explosions and earthquakes in central Europe a case study. Bull Seismol Soc Am 83:184–1212
  • 37. Yaltırak C, İşler EB, Aksu AE, Hiscott RN (2012) Evolution of the Bababurnu Basin and shelf of the Biga Peninsula: western extension of the middle strand of the North Anatolian Fault Zone, Northeast Aegan Sea, Turkey. J Asian Earth Sci 57:103–119
  • 38. Yılmaz Ş, Bayrak Y, Çınar H (2013) Discrimination of earthquakes and quarry blasts in the eastern Black Sea region of Turkey. J Seismol 17:721–734. https://doi.org/10.1007/s10950-012-9348-x
  • 39. Zeiler C, Velasco AA (2009) Developing local to near-regional explosion and earthquake discriminants. Bull Seismol Soc Am 99:24–35
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-78b01d13-9fc0-4c41-9544-86fa2f20eafa
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.