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Uniform hazard response spectra and ground motions for tabriz

Moghaddam, H ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. Publisher: 2009
  3. Abstract:
  4. Tabriz has experienced several large destructive historical earthquakes in the past. Due to the absence of ground motion records in this area, a simulation of future events based on a regional seismicity information and ground motion model is necessary. Based on a maximum likelihood method, earthquake magnitude is estimated for a 10% probability of exceedance within 50 years (475-year return period) and its corresponding strong ground motions have been simulated using stochastic finite fault modeling. Using different stress parameters, suites of ground motions have been simulated for a return period of £75 years and their spectral accelerations have been compared with the corresponding uniform hazard spectrum. It is observed that the fit between simulated spectra and its corresponding uniform hazard spectrum has been improved including the directivity effect especially at high periods. © Sharif University of Technology, June 2009
  5. Keywords:
  6. Directivity effect ; Earthquake magnitudes ; Finite fault modeling ; Ground motion model ; Ground motions ; Hazard spectrums ; Historical earthquakes ; Maximum likelihood methods ; Probability of exceedance ; Response spectra ; Return periods ; Seismic hazard deaggregation ; Simulated spectra ; Spectral acceleration ; Stochastic finite fault ; Stress parameter ; Strong ground motion ; Deaggregation ; Earthquakes ; Maximum likelihood ; Risk assessment ; Seismic design ; Probability ; Stochastic systems ; Hazards ; Computer simulation ; earthquake magnitude ; fault ; ground motion ; hazard assessment ; seismicity ; stochasticity ; earthquake ; faulting ; stress analysis ; Asia ; East Azerbaijan ; Eurasia ; Iran ; Middle East ; Tabriz
  7. Source: Scientia Iranica ; Volume 16, Issue 3 , 2009 , Pages 238-248 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_3106.html