Program for computing seismic hazard

What does 'sigma truncation' mean for a GMPE

What does 'sigma truncation' mean for a GMPE

  • 1.5K Views
  • Last Post 03 July 2021
Content_Manager posted this 15 January 2018

Concerning the attenuation model (GMPE), what the term “sigma truncation” represents and what are the typical values it assumes?

Order By: Standard | Newest | Votes
Content_Manager posted this 15 January 2018

Fragment taken from R-CRISIS help Menu:

 

In many cases, truncation is specified in the GMPM trough a parameter called "Sigma truncation", Tc. This means that the integration across the attenuation relation uncertainty implied in the previous equations is not carried out up to infinity, but up to a certain value, Tc.

 

For more information about this subject, we suggest to look up R-CRISIS help Menu available pressing F1 or inside Help->Index Menu. We attach you a help Menu print-screen to show you where is this subject explained:

 

Muhammad Ahmed posted this 30 June 2021

Could not find any change in the results after applying sigma truncation upto -3 sigma? could you please tell me the appropriate way of applying sigma truncation for 2 sigma in R-crisis 18.4.2?

sukranperk posted this 03 July 2021

Could not find any change in the results after applying sigma truncation upto -3 sigma? could you please tell me the appropriate way of applying sigma truncation for 2 sigma in R-crisis 18.4.2?

 

Dear Muhammad, did you download the programme. ı haven't .. can you give info about how I can download

Close