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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/nhess-2018-328
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-2018-328
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 03 Jan 2019

Research article | 03 Jan 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Natural Hazards and Earth System Sciences (NHESS).

Probabilistic seismic hazard analysis using logic tree approach – Patna District (India)

Panjamani Anbazhagan1, Ketan Bajaj1, Karanpreet Matharu1, Sayed S. R. Moustafa2, and Nassir S. N. Al-Arifi2 Panjamani Anbazhagan et al.
  • 1Department of Civil Engineering, Indian Institute of Science, Bangalore, India
  • 2Geological and Geophysics Department, King Saud University, Riyadh, Saudi Arabia

Abstract. PGA and SA distribution for Patna district is presented considering both classical and zoneless approach through logic tree frame work to capture the epistemic uncertainty. Seismicity parameters are calculated by considering completed and mixed earthquake data. Maximum magnitude was calculated using three methods namely incremental method, Kijko method and regional rupture characteristics approach. Best suitable GMPE was selected by carrying out efficacy test using log likelihood. Uniform hazard response spectra have been compared with Indian standard BIS 1893. PGA varies from 0.38 g to 0.30g from southern to northern periphery considering 2% probability of exceedence in 50 years.

Panjamani Anbazhagan et al.
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Panjamani Anbazhagan et al.
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