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PSHA primer: Ground motion models
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This video is part of a highly condensed introduction to probabilistic seismic hazard analysis (PSHA), based on the book "Seismic Hazard and Risk Analysis" by Jack Baker, Brendon Bradley, and Peter Stafford (Cambridge University Press, 2021).
This video discusses metrics of ground motion intensity and defines the popular intensity measure Spectral Acceleration. The mathematical form of ground-motion models (GMMs) is then introduced. Finally, observational data, and two example ground motion models, are used to illustrate trends in ground motion intensity as a function of the earthquake's magnitude and distance.
This video discusses metrics of ground motion intensity and defines the popular intensity measure Spectral Acceleration. The mathematical form of ground-motion models (GMMs) is then introduced. Finally, observational data, and two example ground motion models, are used to illustrate trends in ground motion intensity as a function of the earthquake's magnitude and distance.
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