...what is it? Or more specifically, how does it affect design? I understand it has to do with how active and severe a nearby fault is, but don't see where or whether it affects the process of calc-ing design parameters and forces. Isn't this already taken into account in the probabilities associated with the MCE accelerations?
Ref. SEAOC V3 design examples (ie: EBF example parameters, pg 86)
Ref. SEAOC V3 design examples (ie: EBF example parameters, pg 86)