- See Section 2.87
- Ground-motion model for deep soil is:
where C6 is different for reverse and strike-slip earthquakes.
Ground-motion model for rock is:
where C1 is different for reverse and strike-slip earthquakes.
Vertical equations do not include C7.
- Response parameter is acceleration for 5% damping.
- Perform analysis on spectral amplification ln(SA∕PGA).
- Give smooth coefficients.
- Find standard errors to be dependent on magnitude and fit to a linear relation.