20160620 18282500 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 horizontal spectral response acceleration for 1.0-second period 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 1Hz 1.0-second seismic Alaska Horizontal Spectral Response Acceleration for 1.0-second Period with 10% Probability of Exceedance in 50 Years (1999) US Geological Survey National Seismic Hazard Mapping Program AK 1Hz 10% in 50 years 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