- Ground-motion model is: where Y v is in g, V REF = 750m∕s, a1 = 1.299, a2 = 0.3329, a3 = 0.00317, a4 = -1.24624, a5 = 0.2129,
a6 = 7.5192, a7 = 0.3196, a8 = -0.06736, a9 = 0.09853, a10 = -0.20467, ϕv = 0.5753 (intra-event),
τv = 0.3311 (inter-event) and σv = 0.6638.
- Corresponding vertical model of Akkar et al. (2014a,b) (see Section 2.377). Derive by combining the
models for the horizontal component and vertical-to-horizontal ratio rather than direct regression on data.
- Validate model by computing inter- and intra-event residuals using the vertical data and the proposed
model. Find model is unbiased w.r.t. Mw, rjb and V s,30.