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- Title
Ground-Motion Prediction Equations for the Average Horizontal Component of PGA, PGV, and 5%-Damped PSA at Spectral Periods between 0.01 s and 10.0 s.
- Authors
Boore, David M.; Atkinson, Gail M.
- Abstract
This paper contains ground-motion prediction equations (GMPEs) for average horizontal-component ground motions as a function of earthquake magnitude, distance from source to site, local average shear-wave velocity, and fault type. Our equations are for peak ground acceleration (PGA), peak ground velocity (PGV), and 5%-damped pseudo-absolute-acceleration spectra (PSA) at periods between 0.01 s and 10 s. They were derived by empirical regression of an extensive strong-motion database compiled by the "PEER NGA" (Pacific Earthquake Engineering Research Center's Next Generation Attenuation) project. For periods less than 1 s, the analysis used 1,574 records from 58 mainshocks in the distance range from 0 km to 400 km (the number of available data decreased as period increased). The primary predictor variables are moment magnitude (M), closest horizontal distance to the surface projection of the fault plane ( RJB ), and the time-averaged shear-wave velocity from the surface to 30 m ( VS 30). The equations are applicable for M =5–8, RJB <200 km, and VS 30=180–1300 m/s.
- Publication
Earthquake Spectra, 2008, Vol 24, Issue 1, p99
- ISSN
8755-2930
- Publication type
Article
- DOI
10.1193/1.2830434