05. Comparison with 2001 seismic hazard model

A comparison of the 2021 and 2001 National Seismic Hazard Models (NSHMs) for Hawaii was performed by creating difference and ratio maps for a uniform-hazard with a 2% probability of excedance in 50 years, for spectral accelerations at 0.2 and 1.0 second periods. The data are for a reference site condition of Vs30 equal to 760 m/s. A similar comparison between the ground-motion models (GMMs) used in 2021 versus 2001 was performed by running the 2021 NSHM with the 2001 GMMs. The maps and gridded data used to make the maps are available here for download.