Predictions of Earthquake Ground Motions in Western AB

We develop a suite of ground-motion prediction equations (GMPEs) for earthquakes in western Alberta, where seismic hazard contributions from induced events is of particular interest. The available ground-motion data is limited for deriving a robust predictive model in the magnitude range of engineering interest (M>4). We adopt two alternative published predictive models in order to ensure seismologically-informed predictions for moderate-to-large magnitudes. We determine model adjustments for the regional source and attenuation attributes for each model using the referenced empirical approach (Atkinson, 2008). We provide two alternative GMPEs that are fully-adjusted for observed motions in western Alberta and is applicable for wide ranges of magnitude and distance.