Articles | Volume 23, issue 3
Research article
16 Mar 2023
Research article |  | 16 Mar 2023

A non-extensive approach to probabilistic seismic hazard analysis

Sasan Motaghed, Mozhgan Khazaee, Nasrollah Eftekhari, and Mohammad Mohammadi

Related subject area

Earthquake Hazards
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Nat. Hazards Earth Syst. Sci., 22, 3939–3956,,, 2022
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Cited articles

Anbazhagan, P., Bajaj, K., Matharu, K., Moustafa, S. S. R., and Al-Arifi, N. S. N.: Probabilistic seismic hazard analysis using the logic tree approach – Patna district (India), Nat. Hazards Earth Syst. Sci., 19, 2097–2115,, 2019. 
Berberian, M. and Yeats, R. S: Patterns of historical earthquake rupture in the Iranian Plateau, Bull. Seismol. Soc. Am., 89, 120–139,, 1999. 
Cornell, C. A.: Engineering seismic risk analysis, Bull. Seismol. Soc. Am., 58, 1583–1606,, 1968. 
da Silva, S. L. E. and Corso, G.: Nonextensive Gutenberg–Richter law and the connection between earthquakes and marsquakes, Eur. Phys. J. B., 94, 1–5,, 2021. 
Dutfoy, A. and Senfaute, G.: A New Generation of Earthquake Recurrence Models Based on The Extreme Value Theory and Impact on Probabilistic Seismic Hazard Assessments, PREPRINT (Version 3), Research Square,, 2021. 
Short summary
We modify the probabilistic seismic hazard analysis (PSHA) formulation by replacing the Gutenberg–Richter power law with the SCP (Sotolongo-Costa and Posadas) non-extensive model for earthquake size distribution and call it NEPSHA. The proposed method (NEPSHA) is implemented in the Tehran region, and the results are compared with the classic PSHA method. The hazard curves show that NEPSHA gives a higher hazard, especially in the range of practical return periods.
Final-revised paper