Boore & Atkinson (2008)

Description: 

This Attenuation Relationship is one of the PEER NGA Models. The OpenSHA implementation has been verified using Ken Campbell's NGA test files.

Reference: 

Abrahamson, N. A., and W. J. Silva (2008), Ground-motion prediction equations for the average horizontal component of PGA, PGV, and 5%-Damped PSA at spectral periods between 0.01s and 10.0s, Earthquake Spectra, 24(1), 99-138.

Supported Intensity Measure Types (IMTs): 
SA damping (5%) at the following periods:
  • 0.01
  • 0.02
  • 0.03
  • 0.05
  • 0.075
  • 0.1
  • 0.15
  • 0.2
  • 0.25
  • 0.3
  • 0.4
  • 0.5
  • 0.75
  • 1.0
  • 1.5
  • 2.0
  • 3.0
  • 4.0
  • 5.0
  • 7.5
  • 10.0
Required Parameters: 
Earthquake Rupture
  • Magnitude (MW)
  • Fault Type: [Reverse (30° < rake < 150°), Normal (-150° < rake < -30°), Strike-Slip (all other rake values), Unkown]
Site
  • Vs30 (applicable range is 180 to 1500 m/sec)
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.