Journal Article10.1785/0120120134
A New Procedure for Selecting and Ranking Ground-Motion Prediction Equations (GMPEs): The Euclidean Distance-Based Ranking (EDR) Method
Özkan Kale,Sinan Akkar +1 more
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TL;DR: In this paper, the Euclidean distance-based ranking (EDR) method is proposed for selecting and ranking of ground-motion prediction equations (GMPEs) that can be useful for regional or site-specific probabilistic seismic hazard assessment.
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Abstract: We introduce a procedure for selecting and ranking of ground‐motion prediction equations (GMPEs) that can be useful for regional or site‐specific probabilistic seismic hazard assessment (PSHA). The methodology is called Euclidean distance‐based ranking (EDR) as it modifies the Euclidean distance ( DE ) concept for ranking of GMPEs under a given set of observed data. DE is similar to the residual analysis concept; its modified form, as discussed in this paper, can efficiently serve for ranking the candidate GMPEs. The proposed procedure separately considers ground‐motion uncertainty (i.e., aleatory variability addressed by the standard deviation) and the bias between the observed data and median estimations of candidate GMPEs (i.e., model bias). Indices computed from the consideration of aleatory variability and model bias or their combination can rank GMPEs to design GMPE logic trees that can serve for site‐specific or regional PSHA studies. We discussed these features through a case study and ranked a suite of GMPEs under a specific ground‐motion database. The case study indicated that separate consideration of ground‐motion uncertainty (aleatory variability) and model bias or their combination can change the ranking of GMPEs, which also showed that the ground‐motion models having simpler functional forms generally rank at the top of the list. We believe that the proposed method can be a useful tool to improve the decision‐making process while identifying the most proper GMPEs according to the specific objectives of PSHA. Online Material: MATLAB script and sample input file for EDR index calculation.
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Citations
Empirical ground-motion models for point- and extended-source crustal earthquake scenarios in Europe and the Middle East
TL;DR: This paper presented the latest generation of ground motion models for the prediction of elastic response (pseudo-) spectral accelerations, as well as peak ground acceleration and velocity, derived using pan-European databases.
Alternative Approaches to Modeling Epistemic Uncertainty in Ground Motions in Probabilistic Seismic‐Hazard Analysis
TL;DR: In this paper, two types of uncertainty are recognized in ground motion prediction equations (GMPE) and modeled in a PSHA: (1) ǫ-aleatory uncertainty, expressing random variability of amplitudes about a median prediction equation, and (2) Ã -epistemic uncertainty concerning the correct value of the median.
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Ground motion prediction equations for the Chilean subduction zone
TL;DR: In this paper, the authors presented a database of strong motion records for Chilean subduction zone earthquakes and developed a ground motion prediction equation (GMPE) for peak ground acceleration and response spectral accelerations with 5% damping ratio for periods between 0.01 and 10 s.
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Test of the Applicability of NGA Models to the Strong Ground-Motion Data in the Iranian Plateau
Jafar Shoja-Taheri
- 08 Apr 2009
TL;DR: The Next Generation Attenuation (NGA) project has published several new sets of empirical ground-motion prediction equations (GMPEs) for PGA, PGV, and response spectral ordinates as discussed by the authors.
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The 2014 seismic hazard model of the Middle East: overview and results
Karin Sesetyan,Laurentiu Danciu,Mine Betül Demircioğlu Tümsa,Mine Betül Demircioğlu Tümsa,Domenico Giardini,Mustafa Erdik,Sinan Akkar,Levent Gülen,Mehdi Zare,Shota Adamia,Anooshiravan Ansari,Avetis Arakelyan,Aysegul Askan,Mher Avanesyan,Hektor Babayan,Tamaz Chelidze,Raffi Durgaryan,Ata Elias,H. Hamzehloo,Khaled Hessami,Dogan Kalafat,Özkan Kale,Arkady Karakhanyan,Muhammad Asif Khan,Tahir Mammadli,Mahmood Al-Qaryouti,Mohammad Sayab,Nino Tsereteli,Murat Utkucu,O. Varazanashvili,Muhammad Waseem,Hilal Yalçın,Mustafa Tolga Yilmaz +32 more
TL;DR: The Earthquake Model of Middle East (EMME-SHM14) as mentioned in this paper was developed by the European Facility for Earthquake Hazard and Risk (efehr.org ) to develop regional scale seismic hazard and risk models uniformly throughout a region extending from the Eastern Mediterranean in the west to the Himalayas in the east and from the Gulf of Oman in the south to the Greater Caucasus in the North; a region which has been continuously devastated by large earthquakes throughout the history.
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References
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Maurice Power,Brian S.-J. Chiou,Norman A. Abrahamson,Yousef Bozorgnia,Thomas Shantz,Clifford Roblee +5 more
TL;DR: The Next Generation of Ground-Motion Attenuation Models (NGA) project as mentioned in this paper is a multidisciplinary research program coordinated by the Lifelines Program of the Pacific Earthquake Engineering Research Center (PEER), in partnership with the U.S. Geological Survey and the Southern California Earthquake Center.
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Julian J. Bommer,John Douglas,Frank Scherbaum,Fabrice Cotton,Hilmar Bungum,Donat Fäh,Donat Fäh +6 more
TL;DR: A key element in any seismic hazard analysis is the selection of appropriate ground-motion prediction equations (GMPEs) as discussed by the authors, where Cotton et al. proposed seven criteria as the basis for selecting GMPEs.
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Model Selection in Seismic Hazard Analysis: An Information-Theoretic Perspective
TL;DR: The application of Kullback–Leibler-distance based model selection to real data using the model generating data set for the Abrahamson and Silva (1997) ground-motion model demonstrates the superior performance of the information-theoretic perspective in comparison to earlier attempts at data-driven model selection.
345
Relocation and assessment of seismicity in the Iran region
TL;DR: In this paper, a review of starting depths, association of teleseismic depth phases, and the effects of reading errors on these phases are made and, when necessary, waveforms have been examined to better constrain EHB focal depths.
Relationships between Median Values and between Aleatory Variabilities for Different Definitions of the Horizontal Component of Motion
Katrin Beyer,Julian J. Bommer +1 more
TL;DR: In this article, the authors provide the ratios of different horizontal component definitions in relation to the specification of seismic input for dynamic structural analyses, highlighting the importance of consistency between the component definition used to derive the elastic design-response spectrum and the way that biaxial dynamic loading input is prepared.
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