20160620 18505000 1.0 TRUE Probabilistic seismic-hazard maps were prepared for Alaska portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities of exceedance of 10 percent in 50 years and 2 percent in 50 years. This particular data set is for peak horizontal acceleration with a 10 percent probability of exceedance in 50 years. All of the maps were prepared by combining the hazard derived from spatially smoothed historic seismicity with the hazard from fault-specific sources. The acceleration values contoured are the random horizontal component. The reference site condition is firm rock, defined as having an average shear-wave velocity of 760 m/sec in the top 30 meters corresponding to the boundary between NEHRP (National Earthquake Hazards Reduction program) site classes B and C. For more information online visit: http://pubs.er.usgs.gov/publication/i2679, http://pubs.er.usgs.gov/publication/ofr9936, and http://earthquake.usgs.gov/hazards/ earthquake hazard pga seismic Alaska Peak Horizontal Acceleration with 10% Probability of Exceedance in 50 Years (1999) US Geological Survey National Seismic Hazard Mapping Program AK pga 10% in 50 years 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