SavedAdd your journal

Journals / Maden Tetkik ve Arama Dergisi / 2021 / Cilt: 165 - Sayı: 165

The relation of seismic velocity and attenuation pattern in the East Anatolian fault zone with earthquake occurrence: Example of January 24, 2020 Sivrice earthquake

Şakir ŞAHİN
Erdinç ÖKSÜM
Pages
141–161
Publication Date
2021-08-19
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The variation of velocity and attenuation on the segments where the earthquake occurred and in the silent section were revealed.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The East Anatolian Fault Zone (EAFZ) is one the main tectonic elements of Turkey, which borders the Anatolian plate from the east.
📊
Key Findings & Data:In the historical and instrumental period, many damaging earthquakes occurred, the largest being 6.8 (Ms) as the 1971 Bingöl earthquake.
💡
Conclusion & Impact:The variation of velocity and attenuation on the segments where the earthquake occurred and in the silent section were revealed.
🔬Design:Research Article
📍Scope:2020 Verileri
⚙️Variables:EAFZ · Seismic velocity · Attenuation

Abstract

The East Anatolian Fault Zone (EAFZ) is one the main tectonic elements of Turkey, which borders the Anatolian plate from the east. EAFZ, which is NE-SW direction, consists of many fault segments. In the historical and instrumental period, many damaging earthquakes occurred, the largest being 6.8 (Ms) as the 1971 Bingöl earthquake. The last magnitude 6.6 (Ml) (Mw = 6.8) earthquake occurred on January 24, 2020 in Elazığ - Sivrice Hazar - Sincik segment of EAFZ. However, considering the historical and instrumental activity, it is seen that many fault segments are silent. In this study, the silent and active segments, and their seismic velocity (as % Vp and Vp) and attenuation pattern (as Q-1 p) are determined in order to determine the earthquake behavior of EAFZ in the near future. From the results obtained by using the data of the earthquakes that occurred from 2007 to the end of 2019, it was clearly determined that the velocity and attenuation increased on the Hazar - Sincik segment. It has been determined that Vp is 4.08-8.2 km/sec, Q-1 p is ± 0.005 and the frequency dependency varies between 0 - 1.08 along the zone. The variation of velocity and attenuation on the segments where the earthquake occurred and in the silent section were revealed.

🔖

Cite This Article

ŞAHİN, Ş., ÖKSÜM, E. (2021). The relation of seismic velocity and attenuation pattern in the East Anatolian fault zone with earthquake occurrence: Example of January 24, 2020 Sivrice earthquake. Maden Tetkik ve Arama Dergisi, Cilt: 165 - Sayı: 165, 141–161. https://ajindex.com/articles/687155

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. Abdel - Fattah, A. K., Morsy, M., El - Hady, S., Kim, K. Y., Sami, M. 2008. Intrinsic and scattering attenuation in the crust of the Abu Dabbab area in the eastern desert of Egypt. Physics of the Earth and Planetary Interiors 168, 103-112. AFAD, 2020. Report on 24 January 2020 Sivrice (Elazığ) Mw 6.8 Earthquake, Disaster and Emergency Management Presidency of Turkey, Ministry of Interior, Ankara,
  2. Turkey, Open File Rep. 46. Akıncı, A. 1994. Attenuative behaviors of Western Anatolia and Southern Spain using single and Multiple scattering models, Ph.D.Thesis, Dokuz Eylül University, Grauate School of Natural and Applied Sciences 37-39.
  3. Akıncı, A. Eyidoğan, H. 1996. Frequency-dependent attenuation of S and coda waves in Erzincan region (Turkey) Physics of the Earth and Planetary Interiors 97, 1, 109-119 (11). Aki, K. 1980. Scattering and attenuation of shear waves in the litosphere. Journal of Geophysical Research 85, 6496-6504.
  4. Aki, K., Chouet, B. 1975. Origin of Coda wave: Source, attenuation and scattering effects, Journal of Geophysical Research 80, 21, 3322-3342.
  5. Aksoy, E., İncegöz, M., Koçyiğit, A. 2007. Lake Hazar Basin: a negative flower structure on the East Anatolian Fault System (EAFS), SE Turkey. Turk. J. Earth Sci. 16, 319-338.
  6. Allen, M., Jackson, J., Walker, R. 2004. Late Cenozoic reorganization of the Arabia-Eurasia collision and the comparison of short - term and long - term deformation rates. Tectonics 23, 1, TC2008.
  7. Arpat, E., Şaroğlu, F. 1972. Doğu Anadolu Fayı ile ilgili bazı gözlemler. Maden Tetkik ve Arama Dergisi 78, 44-50.
  8. Aydın, U., Kadirov, A. 2008. Erzincan ve Çevresinde P Dalgası Soğurulması. SAÜ Fen Bilimleri Dergisi 12(1), 1-8.
  9. Aydın, U., Şahin, Ş., Kalkan, E. 2012.
  10. Yarbaşı, N., Aksoy, G., Kemaliye çevresinde Pg, Sg Soğurulması ve yeni magnitüd fomülü, Fen Bilimleri Dergisi 16, 1, 13-23.
  11. Aydın, U., Şahin, Ş., Salah, M.K. 2020. Upper crustal Poisson’s ratio and coda-wave attenuation beneath Eastern Anatolia, Earthq Eng and Eng Vib. 19, 335-347.
  12. Barka, A. A., Kadinsky - Cade, K. 1988. Strike - slip fault geometry in Turkey and its influence on earthquake activity. Tectonophysics 7, 663-684
  13. Bianco, F., Del Pezzo, E., Castellamo, M., Ibanez, J., Diluccio, F. 2002. Separation of intrinsic and scattering seismic attenuation in the Southern Apennine zone, Italy. Journal of Geophysical Research 150, 10-22.
  14. Bulut, F., Bohnhoff, M., Eken, T., Janssen, C., Kılıç, T., Dresen, G. 2012. The East Anatolian Fault Zone: Seismotectonic setting and