- Ground-motion model is:
where A is in g, a = -1.879, b = 0.431 and c = -1.908 (for vertical components) and a = -2.114, b = 0.480 and c = -1.693 (for horizontal components).

- All records from digital instruments.
- Try including a term dlog(M) but tests show that d is negligible with respect to a, b and c.