Program for computing seismic hazard

What does 'sigma truncation' mean for a GMPE

What does 'sigma truncation' mean for a GMPE

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  • Last Post 15 January 2018
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?

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:

 

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