- See Section 2.175.
- Response parameter is acceleration for 5% damping.
- Different set of data than for PGA hence: strike-slip: 20 earthquakes (including one normal faulting shock),
reverse: 7 earthquakes and thrust: 6 earthquakes.
- Find considerable period-to-period variability in coefficients causing predicted spectra to be very jagged
near limits of magnitude and distance ranges so carried out partial smoothing of coefficients.