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Pure and Applied Geophysics

, Volume 167, Issue 12, pp 1475–1484 | Cite as

Probabilistic Seismic Hazard Assessment for Izmir, Turkey

  • Aykut Deniz
  • Kasim Armagan KorkmazEmail author
  • Ayhan Irfanoglu
Article

Abstract

Izmir, the third largest city and one of the major economic centers in Turkey, has more than three million residents and one-half million buildings. The city, located in a seismically active region in western Anatolia, was a subject of the 1997 RADIUS (Risk Assessment Tools for Diagnosis of Urban Areas against Seismic Disaster) project. In this paper, the seismic hazard of Izmir is investigated through probabilistic seismic hazard assessment. First, the seismic setting of Izmir is presented. Considering the statistics of earthquakes that took place in the region during the period 1900–2005, a simple seismic hazard model is used to facilitate the assessment. To account for modeling uncertainties associated with the values of seismicity parameters, a logic tree procedure is employed in carrying out the seismic hazard computations. The resulting weighted average seismic hazard, presented in terms of peak ground acceleration and associated probability of exceedence, could be considered the “best estimate” of seismic hazard for Izmir. Accordingly, for a return period of 475 years, for rock sites, a PGA value of 0.34 g is calculated. This PGA hazard estimate is close to the current code-recommended design acceleration level for Izmir.

Keywords

Seismic hazard assessment seismic hazard analysis earthquake Izmir 

Notes

Acknowledgements

The authors would like to thank Dr. Sinan Akkar at the Middle East Technical University, Ankara, Turkey for his help and suggestions to improve the article.

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Copyright information

© Birkhäuser / Springer Basel AG 2010

Authors and Affiliations

  • Aykut Deniz
    • 1
  • Kasim Armagan Korkmaz
    • 2
    Email author
  • Ayhan Irfanoglu
    • 3
  1. 1.Technological Engineering Services Co. LtdAntalyaTurkey
  2. 2.Department of Civil EngineeringSuleyman Demirel UniversityIspartaTurkey
  3. 3.School of Civil EngineeringPurdue UniversityWest LafayetteUSA

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