Articles | Volume 23, issue 3
© Author(s) 2023. This work is distributed underthe Creative Commons Attribution 4.0 License.
A non-extensive approach to probabilistic seismic hazard analysis
- Final revised paper (published on 16 Mar 2023)
- Preprint (discussion started on 05 Sep 2022)
Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor |
: Report abuse
RC1: 'Comment on nhess-2022-214', Anonymous Referee #1, 02 Oct 2022
- AC1: 'Reply on RC1', sasan motaghed, 11 Nov 2022
- CC1: 'Comment on nhess-2022-214', Luciano Telesca, 14 Nov 2022
RC2: 'Comment on nhess-2022-214', Luciano Telesca, 15 Nov 2022
- AC3: 'Reply on RC2', sasan motaghed, 17 Nov 2022
- AC2: 'modified Reply on RC1', sasan motaghed, 16 Nov 2022
Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (further review by editor and referees) (26 Nov 2022) by Filippos Vallianatos
AR by sasan motaghed on behalf of the Authors (26 Nov 2022) Author's response Author's tracked changes Manuscript
ED: Referee Nomination & Report Request started (10 Dec 2022) by Filippos Vallianatos
RR by Anonymous Referee #2 (10 Dec 2022)
RR by Anonymous Referee #1 (11 Jan 2023)
ED: Publish subject to minor revisions (review by editor) (05 Feb 2023) by Filippos Vallianatos
AR by sasan motaghed on behalf of the Authors (06 Feb 2023) Author's response Author's tracked changes Manuscript
ED: Publish as is (19 Feb 2023) by Filippos Vallianatos
AR by sasan motaghed on behalf of the Authors (25 Feb 2023) Manuscript
Moatghed et al. in their paper “A non-extensive approach to probabilistic seismic hazard analysis” present a new approach for the probabilistic seismic hazard analysis (PSHA), in which they use the fragment-asperity model of Sotolongo-Costa and Posadas (SCP) to describe the frequency-magnitude distribution of earthquakes, instead of the well-known Gutenberg-Richter (GR) scaling law. Various studies during the last two decades have demonstrated that the SCP model, based on the concept of Tsallis entropy, it provides a physical model for the energy distribution of earthquakes. In addition, it provides in various cases a better fit to the observed frequency-magnitude distribution over a wider range of magnitudes compared to the GR law. Nonetheless, the well-known b-value can be deduced as a particular case in the SCP model. In this framework, the generalization of the classic PSHA by using the SCP model may provide better results regarding the estimation of seismic hazard. The paper presented by Moatghed et al. aims to contribute to this field and clearly falls within the scope of Natural Hazards and Earth System Sciences. The paper is generally well written and structured, but it needs some revisions before it can be further considered for publication. Some points that require further clarification are listed below.
The main issue concerns the application of PSHA in the Tehran region in Section 4.
1) The spatial distribution of earthquakes used in the analysis should be shown in a Figure, perhaps Fig.1.
2) The authors use earthquakes since 1900AD. Which is the magnitude of completeness of the catalogue during this period?
3) Present a Figure showing the cumulative number of earthquakes used in the analysis and the cumulative number after declustering to show its effectiveness.
4) Which method was used to estimate the GR parameters? Obviously, in Fig.2 the GR law is not well implemented.
5) Provide confidence intervals for the parameter values in Table 1.
6) Revise all calculations of PSHA based on the better estimation of the GR parameters. Show in Fig.3-5 the revised calculations and the corresponding confidence intervals.
7) Provide more information on how the uniform hazard spectra are calculated.
Some minor comments concern:
1) Correct to “Posadas” in Line 185.
2) Correct to “NEPSHA” in Line 135.
3) Refer to other relevant studies that use the Tsallis entropy approach to identify precursors in the earthquake generation process, such as Vallianatos et al. (2014), Physica A.
4) Refer to other relevant studies that review the non-extensive approach in earthquakes and tectonics, such as Vallianatos et al. (2016), Proc. R. Soc. A.