Journal of Seismology and Earthquake Engineering

Journal of Seismology and Earthquake Engineering

Ranking of GMPEs for Seismic Hazard Analysis in Iran Using LH, LLH and EDR Approaches

Document Type : Risk Management

Authors
Mohammad Fallah Tafti 1
Kambod Amini Hosseini 1
Erfan Firouzi 2
Babak Mansouri 1
Anooshiravan Ansari 3
1 International Institute of Earthquake Engineering and Seismology (IIEES)
2 International Institute of Earthquake Engineering and Seismology (IIEES), Tehran, Iran
3 Earthquake Risk Management Research Center, International Institute of Earthquake Engineering and Seismology (IIEES), Tehran, Iran
10.48303/jsee.2017.240760
Abstract
One of the most critical steps of seismic hazard and risk analysis is selecting the appropriate GMPEs to address strong ground motion based on earthquakeparameters. In fact, appropriate modeling of this epistemic source of uncertainty in analysis is a non-trivial approach that is an active area of research. From statistical point of view, this issue can be resolved by measuring the good-of-fit, which describes how well a model fits a set of observations. In this study, the suitability of a set of local, regional and global GMPEs based on the three approaches of LH, LLH and EDR for two distinct seismotectonic regions of Iran have been assessed. Analyses show general compatibility between the order of ranking in both approaches of LH and LLH while the order of ranking in EDR approach shows significant differences. This contradiction come from their conceptual differences, in which the approaches like LH and LLH the overall performance of a model is assessed in an index and the individual effect of other parameters are not examined.
Keywords
Seismic Hazard
Risk Analysis
Ranking of GMPEs
Seismotectonic regions
Iran
LH and LLH methods
EDR index
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Journal of Seismology and Earthquake Engineering
Volume 19, Issue 2 - Serial Number 2
Spring 2017
Pages 139-161

  • Receive Date 29 June 2017
  • Accept Date 26 December 2020
  • Publish Date 01 April 2017