- Ground-motion model is the same as Ambraseys et al. (2005a) (see Section 2.235) with the addition of
a term b11AS, where AS = 1 for an aftershock record and 0 otherwise. Find predicted motions from
aftershocks slightly smaller than from mainshocks.
- Examine total residual plots, biases and standard deviations of rederived GMPEs of Ambraseys
et al. (2005a) with magnitude-independent σ with earthquake classified as aftershock or other. Do not
find significant differences in residuals between aftershocks and the rest of the data.
- Discuss the use of aftershock data when developing GMPEs.