Journals / Mühendislik Bilimleri ve Tasarım Dergisi / 2017 / Cilt: 5 - Sayı: 3

SEISMICITY AND SEISMIC HAZARD ANALYSIS FOR MUĞLA CITY AND ITS VICINITY

MUĞLA İLİ VE ÇEVRESİ İÇİN DEPREMSELLİK VE SİSMİK TEHLİKE ANALİZİ

Pages
507–524
Publication Date
2022-10-19
DOI
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⚡ TL;DR(Too Long; Didn't Read)

Local design spectrums depending on obtained “mmax” values was determined by EZ-FRISK 7.52 program Acceleration values for the earthquake which is the 10% probability exceedance in 50 years were calculated as 0.40 g, 3.4 g ve 0.92 g respectively.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study the spatial distribution of seismicity, maximum magnitude value “mmax” and local design spectrums for the Muğla city and its vicinity depend on the current seismicity of Western Anatolia were determined.The first part of this study, homogeneous a catalog has been created using data from the international data bases (International Seismological Centre and National Earthquake International Centre).The study area was gridded at 0.25ºN x 0.25ºE for the determination and mapping of seismicity and “mmax” value.
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Key Findings & Data:A relatively low value of “b” changing in the range of 0.8<b<0.84 was obtained for the region.
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Conclusion & Impact:Local design spectrums depending on obtained “mmax” values was determined by EZ-FRISK 7.52 program Acceleration values for the earthquake which is the 10% probability exceedance in 50 years were calculated as 0.40 g, 3.4 g ve 0.92 g respectively.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Depremsellik · “b” değeri · Sismik tehlike analizi

Abstract

In this study the spatial distribution of seismicity, maximum magnitude value “mmax” and local design spectrums for the Muğla city and its vicinity depend on the current seismicity of Western Anatolia were determined.The first part of this study, homogeneous a catalog has been created using data from the international data bases (International Seismological Centre and National Earthquake International Centre).The study area was gridded at 0.25ºN x 0.25ºE for the determination and mapping of seismicity and “mmax” value. The “b” value in the Gutenberg-Richter relationship was calculated at each, respectively sub-region using conventional methods of Maximum Likelihood and Kal-Tek. A relatively low value of “b” changing in the range of 0.8<b<0.84 was obtained for the region. For each region, the values of “mmax”were obtained by Tate-Pisarenko, Kijko-Sellevoll (Cramer), Kijko-Sellevoll (Exact), Tate-Pisarenko-Bayes, Kijko-Sellevoll-Bayes, methods. As a result of calculations it was seen that the value of “mmax”, that could occur in the region is between 6.0≤Mw≤6.5. Low “b” values and high “mmax” values clearly show that destructive earthquakes occurred in the past may likely occur in the future in the study area.In the second and last part of the study, firstly the possible earthquake faults (Karaova-Milas Fault, Muğla-Yatağan Fault and Ula-Ören Fault) and the earthquake parameters belonging to these faults were determined. Local design spectrums depending on obtained “mmax” values was determined by EZ-FRISK 7.52 program Acceleration values for the earthquake which is the 10% probability exceedance in 50 years were calculated as 0.40 g, 3.4 g ve 0.92 g respectively.

Özet

Bu çalışmada Batı Anadolu’nun güncel depremselliğine bağlı olarak Muğla ili ve çevresinin depremselliğinin uzaysal dağılımı, maksimum magnitüd “mmax” değeri ve yerel tasarım spektrumları belirlenmiştir. Çalışmanın ilk aşamasında uluslararası veri merkezlerinden (International Seismological Centre ve National Earthquake Inernatinal Centre) elde edilen veriler kullanılarak homojen bir katalog oluşturulmuştur. Depremselliğin ve “mmax” değerinin belirlenebilmesi ve haritalanabilmesi için çalışma alanı 0.25°K x 0.25°D aralıklarla gridlenmiştir. Her bir alt bölge için Gutenberg-Richter bağıntısındaki “b” değeri En Büyük Olasılık ve Kal-Tek yöntemleri kullanılarak hesaplanmıştır. Ve bölge için 0.8<b<0.84 aralığında değişim gösteren görece düşük “b” değerleri elde edilmiştir. “mmax” değeri ise her bir alt bölgede Tate-Pisarenko, Kijko-Sellevoll (Cramer), Kijko-Sellevoll (Kesin), Tate-Pisarenko-Bayes, Kijko-Sellevoll-Bayes yöntemleri kullanılarak hesaplanmıştır. Yapılan hesaplamalar sonucunda bölgede oluşabilecek “mmax” değerinin 6.0≤Mw≤6.5 aralığında olduğu görülmüştür. Düşük “b” değeri ve yüksek “mmax” değeri çalışma alanında geçmişte olduğu gibi gelecekte de yıkıcı depremler olabileceğini göstermektedir. Çalışmanın ikinci ve son aşamasında ise öncelikle deprem üretmesi muhtemel faylar (Karaova-Milas Fayı, Muğla-Yatağan Fayı ve Ula-Ören Fayı) ve bu faylara ait deprem parametreleri belirlenmiştir. Elde edilen “mmax” değerine bağlı olarak yerel tepki spektrumları EZ-FRISK 7.52 programı yardımıyla belirlenmiştir. Yapılan hesaplamalar sonucunda 50 yılda aşılma olasılığı %10 olan depremler için ivme değerleri sırası ile 0.40 g, 3.64 g ve 0.92 g olarak hesaplanmıştır.

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Cite This Article

KALYONCUOĞLU, Ü. Y., KILIÇ, N. C. A. (2022). SEISMICITY AND SEISMIC HAZARD ANALYSIS FOR MUĞLA CITY AND ITS VICINITY. Mühendislik Bilimleri ve Tasarım Dergisi, Cilt: 5 - Sayı: 3, 507–524. https://ajindex.com/articles/583796

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References (11)

  1. Abercrombie, R.E., 1997. Near-surface Attenuation and Site Effects from Comparison of Surface and Deep Borehole Recordings, Bulletin of the Seismological Society of America, 87, 731-144.
  2. Abrahamson, N.A. ve Silva, W.J., 1997. Empirical Response Spectral Attenuation Relations for Shallow Crustal Earthqaukes. Seismological Research Letters, 68: 94-127.
  3. Abrahamson, N.A. ve Silva, W.J., 2008. Summary of the Abrahamson and Silva Ground-Motion Relations Earthquake Spectra, 24, I, 67-97.
  4. Aki, K., 1965. Maximum Likelihood Estimate of b in the formula logN=a-bM and its confidence limits. Bulletin of the Earthquake Research Institute, University of Tokyo, 43, 237-239.
  5. Allen, C.R., Amanp, P., Richter, C.F., Nordquist, J.M., 1965. Relation Between Seismicity and Geological Structure in the S. California Region. Bulletin of the Seismological Society of America, 55, 752-797.
  6. Alptekin, Ö., 1978. Magnitude-Frequency Relationships and Deformation Release fort he Earthquakes in and around Turkey. Thesis for Prpmoting to Associate Professor Level, Karadeniz Technical University, 107s., Trabzon. Ambraseys, N.N. ve Jackson, J.A., 1998. Faulting Associated with Historical and Recent Earthquakes in the Eastern Mediterranean Region, Geophysical Journal International, 133, 390-406.
  7. Ambraseys, N.N., 1975. Trends in Engineering Seismology in European Conference on Earthquake Engineering, Volume 3. Ambraseys, N.N., Douglas, J., Sarma, S.K., Smith, P.M., 2005. Equations for the Estimation of Strong Ground Motions from Shallow Crustal Earthquakes Using Data from Europe and the Middler East: Horizontal Peak Ground Acceleration and Spectral Acceleration. Bulletin of Earthquake Engineering, 3:1-53.
  8. Ambraseys., N.N., Simpson, K.A., Bommer, J.J., 1996. Prediction of Horizontal Response in Europe. Earthquake Engineering and Structral Dynamics, 25, 371-400.
  9. Atkinson, G.M. ve Boore, D.M., 2003. Empirical Ground-Motion Relations for Subduction Zone Earthquakes and theri Application to Casadia and other Regions. Bulletin of the Geological Society of America, 93(4). Aydan, Ö., 2001. İstanbul Boğazı Denizaltı Geçişi İçin Tip Tünel ile Kalkan Tünelin Uygunluğunun Karşılaştırılması. Jeoloji Mühendisliği Dergisi, 25(1),1-17.
  10. Aydan, Ö., Sedaki, M. ve Yarar, R., 1996. The Seismic Characteristic of Turkish Earthqaukes. Eleventh World Conference on Earthquake Engineering, 23-28
  11. June, Acapulco, Mexico. Bayrak, Y., Bayrak, E., Atay, N., 2011. En Büyük Olasılık Yöntemi Kullanılarak Batı Anadolu’nun Farklı B