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Statistical evaluation and probabilistic modeling of aftershock sequences of Iranian plateau

Khansefid, A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1007/s10950-018-9765-6
  3. Publisher: Springer Netherlands , 2018
  4. Abstract:
  5. The present research focuses on the statistical evaluation of Iranian plateau aftershocks from an engineering perspective and presents probabilistic models applicable for generating random earthquake scenarios. Accordingly, a comprehensive earthquake data catalog including the period from 1964 to 2016 is prepared. Data are declustered into 37 separate mainshock-aftershock sequences by considering the completeness moment magnitude of the database. The well-known modified Omori occurrence rate formula is adopted to determine the recurrence time of the events, considering the effect of secondary aftershocks. In addition to computing the probability density functions of the parameters of the Omori formula, the joint probability distribution of the aftershock occurrence versus magnitude and occurrence time is obtained for modeling their magnitude sequences. The obtained results are applicable for producing randomly generated mainshock-aftershock scenarios. © 2018, Springer Nature B.V
  6. Keywords:
  7. Aftershock ; Iranian plateau ; Joint probability distribution ; Magnitude model ; Mainshock ; Occurrence model ; Earthquake catalogue ; Earthquake event ; Earthquake magnitude ; Probability ; Seismic source ; Statistical analysis
  8. Source: Journal of Seismology ; Volume 22, Issue 5 , 2018 , Pages 1249-1261 ; 13834649 (ISSN)
  9. URL: https://link.springer.com/article/10.1007/s10950-018-9765-6