Seismological Analysis of the September 5, 2012 Afyonkarahisar (Türkiye) Military Ammunition Depot Explosion

Yıl 2024, Cilt: 6 Sayı: 2, 369 - 386

İrem Özkavaf , Emrah Budakoğlu

https://doi.org/10.46464/tdad.1465881

Öz

On September 5, 2012, a powerful explosion occurred in Ammunition Depot No. 32 located in the Şehit Uzman Çavuş Mete Saraç Barracks of the 500th Engineering Main Depot Command in Afyonkarahisar. In this study, seismic and acoustic wave records related to the explosion were analysed in both time and frequency domains. Analysis of the seismograms determined that the explosion occurred at 18:07:53.87 (UTC) with a magnitude of ML=1.4. Among three different yield estimation methods, the secondary shock wave delay time-based analysis was found to be reliable, and the amount of explosive material was estimated to be 21 tons. In the frequency domain studies, it was determined that the P-waves were dominant at around 3 Hz and the acoustic waves at around 20 Hz. Furthermore, findings from frequency domain analyses indicated the occurrence of multiple explosions within a very short time frame. Seismological investigations related to explosions can significantly contribute to forensic processes, crisis management, and emergency planning.

Anahtar Kelimeler

Explosion seismology, Seismic and acoustic waves, Forensic seismology, Amount of explosive material

5 Eylül 2012 Afyonkarahisar (Türkiye) Askeri Mühimmat Deposu Patlamasının Sismolojik Analizi

Öz

5 Eylül 2012 tarihinde Afyonkarahisar’daki 500. İstihkâm Ana Depo Komutanlığı Şehit Uzman Çavuş Mete Saraç Kışlası’nda bulunan 32 nolu mühimmat deposunda kuvvetli bir patlama meydana gelmiştir. Bu çalışmada patlamaya ilişkin sismik ve akustik dalga kayıtları zaman ve frekans ortamında incelenmiştir. Sismogramların analizinde patlamanın 18:07:53.87 (UTC)’de gerçekleştiği ve büyüklüğü ML=1.4 olarak hesaplanmıştır. Üç farklı verim tahmini yönteminden ikincil şok dalgası gecikme süresi temelli analiz güvenilir bulunmuş ve infilak eden madde miktarı 21 ton olarak tespit edilmiştir. Frekans ortamı çalışmalarında P dalgalarının 3 Hz ve akustik dalgaların 20 Hz civarında baskın olduğu belirlenmiştir. Ayrıca, frekans ortamı analizlerinde çok kısa sürede birden fazla patlamanın gerçekleştiğine dair bulgulara rastlanmıştır. Patlamalara ilişkin sismolojik araştırmalar adli süreçlere, kriz yönetimine ve acil durum planlamalarına önemli katkı sunabilirler.

Anahtar Kelimeler

Patlama sismolojisi, Sismik ve akustik dalgalar, Adli sismoloji, Patlayıcı madde miktarı

Teşekkür

Yazarlar çalışmada kullanılan veriler için Afet ve Acil Durum Yönetimi Başkanlığı Deprem Dairesi Başkanlığı’na (AFAD-DDB) ve Kandilli Rasathanesi ve Deprem Araştırma Enstitüsü-Bölgesel Deprem ve Tsunami İzleme Merkezi (KRDAE-BDTİM)'ne teşekkür ederler.

Kaynakça

• Ambraseys N.N., 1990. Uniform magnitude re‐evaluation of European earthquakes associated with strong‐motion records, Earthquake engineering & structural dynamics, 19(1), 1-20.
• Ambrosini D., Luccioni B., 2007. Craters produced by explosions above the soil surface, Mecánica Computacional, 23, 2253-2266.
• Ataeva G., Gitterman Y., Shapira A., 2017. The ratio between corner frequencies of source spectra of P-and S-waves—a new discriminant between earthquakes and quarry blasts, Journal of Seismology, 21, 209-220, https://doi.org/10.1007/s10950-016-9598-0.
• Baumgardt D.R., Young G.B., 1990. Regional seismic waveform discriminants and case-based event identification using regional arrays, Bulletin of the Seismological Society of America, 80(6B), 1874-1892.
• Bowers D., Marshall P.D., Douglas A., 2001. The level of deterrence provided by data from the SPITS seismometer array to possible violations of the Comprehensive Test Ban in the Novaya Zemlya region, Geophysical Journal International, 146, 425-438. https://doi.org/10.1046/j.1365-246x.2001.01462.x .
• Bowers D., Selby N.D., 2009. Forensic seismology and the comprehensive nuclear-test-ban treaty, Annual Review of Earth and Planetary Sciences, 37, 209-236.
• Budakoğlu E., Horasan G., 2018. Classification of seismic events using linear discriminant function (LDF) in the Sakarya region, Turkey, Acta Geophysica, 66, 895-906. https://doi.org/10.1007/s11600-018-0179-1 .
• Budakoğlu E., 2022. Seismological investigations of fireworks factory explosions in Hendek-Sakarya (Turkey), Journal of Seismology, 26(2), 283-299, https://doi.org/10.1007/s10950-022-10082-z .
• Bull J.W., Woodford C.H., 1998. Camouflets and their effect on runway support, Computers & structures, 69(6), 695-706, https://doi.org/10.1016/S0045-7949(98)00135-7 .
• Evers L.G., Ceranna L., Haak H.W., Le Pichon A., Whitaker R.W., 2007. A seismoacoustic analysis of the gas-pipeline explosion near Ghislenghien in Belgium, Bulletin of the Seismological Society of America, 97:417–425, https://doi.org/10.1785/0120060061 .
• Gitterman Y., 2013. Secondary shock features for large surface explosions: results from the Sayarim Military Range, Israel and other experiments, Shock Waves, 24, 267-282. https://doi.org/10.1007/s00193-013-0487-y .
• Gitterman Y., Hofstetter R., 2014. GT0 explosion sources for IMS infrasound calibration: Charge design and yield estimation from near-source observations, Pure and Applied Geophysics, 171, 599-619, https://doi.org/10.1007/s00024-012-0575-4 .
• Gitterman Y., Pinky V., Shapira, A., 1998. Spectral classification methods in monitoring small local events by the Israel seismic network, Journal of Seismology, 2:237-256.
• Goldstein P., Dodge D., Firpo M., Miner L., 2003. SAC2000: Signal processing and analysis tools for seismologists and engineers. In: Lee WHK, Kanamori H, Jennings PC, Kisslinger C (eds) International handbook of earthquake and engineering seismology. Elsevier, New York, pp 1613-1614.
• Görgün E., 2003. Calibration of various magnitude scales in Turkey using broadband data. M.Sc. Thesis, Kandilli Observatory and Earthquake Research Institute, B.U., 66 pp.
• Hedlin M.A., Minster J.B., Orcutt J.A., 1989. The time-frequency characteristics of quarry blasts and calibration explosions recorded in Kazakhstan, USSR, Geophysical Journal International, 99, 109-121, https://doi.org/10.1111/j.1365-246X.1989.tb02019.x .
• Hinzen K.G., Krummel H., Weber B., Fleischer C., 2022. Forensic view on two Raspberry Shake burglargrams, Journal of Seismology, 26(5), 863-873.
• Horasan G., Güney A.B., 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, Journal of Asian Earth Sciences, 34, 90-99. https://doi.org/10.1016/j.jseaes.2008.03.012 .
• Habername, 2023. İşte rakamlarla Afyon patlaması!, Erişim adresi: https://www.habername.com/haber-iste-rakamlarla-afyon-patlamasi-80256.htm.
• Kalafat D., Gürbüz C., Üçer B., 1987. Batı Türkiye’de Kabuk ve Üst Manto Yapısının Araştırılması, Deprem Araştırma Bülteni, 59, 43-64.
• Kim W.Y., Richards P.G., 2007. North Korean nuclear test: Seismic discrimination low yield, Eos, Transactions American Geophysical Union, 88(14), 158-161.
• Kim W.Y., Sykes L.R., Armitage J.H., Xie J.K., Jacob K.H., Richards P.G., West M., Waldhauser F., Armbruster J., Seeber L., Du W.X., Lerner‐Lam A., 2001. Seismic waves generated by aircraft impacts and building collapses at World Trade Center, New York City. Eos, Transactions American Geophysical Union, 82(47), 565-571, https://doi.org/10.1029/01EO00330.
• Kinney G.F., Graham K.J., 1985. Explosions, Explosive Shocks in Air, 1-17.
• Koper K.D., Wallace T.C., Reinke R.E., Leverette J.A., 2002. Empirical scaling laws for truck bomb explosions based on seismic and acoustic data, Bulletin of the Seismological Society of America, 92, 527–542, https://doi.org/10.1785/0120000242 .
• Koper K.D., Wallace T.C., Hollnack D., 1999. Seismic analysis of the 7 August 1998 truck-bomb blast at the American embassy in Nairobi, Kenya, Seismological Research Letters, 70(5), 512-521.
• Kristekova M., Moczo P., Labak P., Cipciar A., Fojtikova L., Madaras J., Kristek J., 2008. Time-frequency analysis of explosions in the ammunition factory in Novaky, Slovakia, Bulletin of the Seismological Society of America, 98, 2507-2516, https://doi.org/10.1785/0120080048 .
• Kuran F., Polat S., 2012. 5 Eylül 2012 Afyonkarahisar Mühimmat Deposu Patlamasinin Sismik Kayitlar Kullanilarak İrdelenmesi, 3. Türkiye Deprem Mühendisliği ve Sismoloji Konferansı, 14-16 Ekim 2015, DEÜ, İzmir, Erişim adresi: https://www.tdmd.org.tr/pdf/pdf2015/TDMSK_047.pdf.
• Lacoss R.T., 1971. Data Adaptive Spectral Analysis Methods, Geophysics ,36, 661-675.
• Leach Jr., R.R., Dowla F.U., 1995. Towards data fusion in seismic monitoring: Source characterization of mining blasts with acoustic and seismic records, United States, https://doi.org/10.2172/171276 .
• Lee W.H.K., Lahr J.C., 1972. HYPO71: a computer program for determining hypocenter, magnitude and first-motion pattern of local earthquakes, U.S. Geological Survey Open-file Report, 75-311, https://doi.org/10.3133/ofr75311 .
• McCormack D.A., 2003. Using seismic data in air crash investigations, CTBTO Spectrum, Erişim adresi: https://www.ctbto.org/sites/default/files/2022-08/010803_issue2_spectrum_internet.pdf.
• Rigby S.E., Gitterman Y., 2016. Secondary shock delay measurements from explosive trials. In: Proceedings of the 24th international symposium on military aspects of blast and shock (MABS24), Halifax, Nova Scotia, Canada, Erişim adresi: https://eprints.whiterose.ac.uk/105006/.
• Schneider F.M., Fuchs F., Kolínský P., Caffagni E., Serafin S., Dorninger M., Bokelmann G., AlpArray Working Group., 2018. Seismo-acoustic signals of the Baumgarten (Austria) gas explosion detected by the AlpArray seismic network, Earth and Planetary Science Letters, 502, 104-114, https://doi.org/10.1016/j.epsl.2018.08.034 .
• Settles G.S., 2006. High-speed imaging of shock waves, explosions and gunshots: new digital video technology, combined with some classic imaging techniques, reveals shock waves as never before, American Scientist, 94(1), 22-31.
• TBMM, 2013. Türkiye Büyük Millet Meclisi Tutanak Dergisi, Erişim adresi: https://www5.tbmm.gov.tr/tutanak/donem24/yil4/ham/b00801h.htm.
• TRTHABER, 2023. Afyonkarahisar'dan Kara Haber: 25 Şehit, Erişim adresi: https://www.trthaber.com/haber/gundem/afyonkarahisardan-kara-haber-25-sehit-54631.html.
• Wessel P., Smith W.H.F., 1998. New, improved version of the generic mapping tools released, EOS Trans AGU, 79, 579.
• Yavuz E., Sertçelik F., Livaoğlu H., Woith H., Lühr B.G., 2019. Discrimination of quarry blasts from tectonic events in the Armutlu Peninsula, Turkey, Journal of Seismology, 23, 59-76.
• Yılmazer M., 2012. zSacWin: A rapid earthquake processing and archiving system, User Guide v1.0. December 2012, Supported by the Research Fund of the Boğaziçi University PN: 5725P.
• Zhang M., Wen L., 2015. Seismological evidence for a low‐yield nuclear test on 12 May 2010 in North Korea, Seismological Research Letters, 86(1), 138-145.
• Zhao X., Feng W., Tan Y., Li J., Pei S., An Y., Hua W., He S., Zhao Y., Liu J., Yao Z., 2016. Seismological investigations of two massive explosions in Tianjin, China, Seismological Research Letters, 87, 826-836, https://doi.org/10.1785/0220150229 .