I am doing psha analysis of a site in Indian peninsular region using R-crisis software. I have devided the site with various seismic zones. Maximum credible earthquake is 6.8. I have calculated a b value of each zone. During PSHA analysis my site is located inside the one seismic zone, with lamda =0.12, beta 1.953, Mmin4.8, and Mmax 6.8. with PSHA with return period 10000 years, I am getting pga value nearly 0.48 to 0.58 g. Which is very high value for any stable continent. I think is I am getting that much high value because my site is located inside the source zone and made some gross mistake in defining the problem. (Source parameters are correct). Kindly give your comments and suggestions. In R-crisis software, in have define site location, Source geometry as area source, Source seismicity, Attinuation relationship ( Pezeshek et.al. 2011, and Atkinson Boots 2006, ENA). Depth of source 10km. Site location 17.6868° N, 83.2185° E Square seismic zone
Obtained high PSHA value in stable continent,
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- Last Post 26 February 2020
Content_Manager
posted this
24 February 2020
Dear R-CRISIS User,
Beforehand, I thank you for your interest in R-CRISIS.
Regarding your question, ERN cannot give you an opinion about the hazard model your are building. ERN only provides you support in order to correctly use the software. Perhaps, other Forum User may help you with your question.
Best regards,
srijit
posted this
26 February 2020
I just want to know about the software, whether I am doing right or not, I am getting any example where the site is inside the seismic zone.
Nikos Vavlas
posted this
26 February 2020
- Last edited 26 February 2020
Dear srijit
Could you please respond to the following questions?
1) Have you inserted K1 and K2 rupture parameters?
2) Have you applied any truncation to the GMPEs?
3) Were the G-R parameters calculated from a complete and declustered catalog?
