Spudich et al. (1999)

Reference: 

Spudich, P., W. B. Joyner, A. G. Lindh, D. M. Boore, B. M. Margaris, and J. B. Fletcher (1999), SEA99: A revised ground motion prediction relation for use in extensional tectonic regimes, Bulletin of the Seismological Society of America, 89(1), 1156-1170.

Supported Intensity Measure Types (IMTs): 
SA damping (5%) at the following periods:
  • 0.0
  • 0.1
  • 0.11
  • 0.12
  • 0.13
  • 0.14
  • 0.15
  • 0.16
  • 0.17
  • 0.18
  • 0.19
  • 0.2
  • 0.22
  • 0.24
  • 0.26
  • 0.28
  • 0.3
  • 0.32
  • 0.34
  • 0.36
  • 0.38
  • 0.4
  • 0.42
  • 0.44
  • 0.46
  • 0.48
  • 0.5
  • 0.55
  • 0.6
  • 0.65
  • 0.7
  • 0.75
  • 0.8
  • 0.85
  • 0.9
  • 0.95
  • 1.0
  • 1.1
  • 1.2
  • 1.3
  • 1.4
  • 1.5
  • 1.6
  • 1.7
  • 1.8
  • 1.9
  • 2.0
Required Parameters: 
Earthquake Rupture
Site
  • Site Type [Rock, Soil]
Propagation-Effect
Other
Parameter values are numeric unless otherwise indicated with options. If only one option is presented, the value is fixed for this attenuation relationship.