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Tornado Risk Index Rating, County, National Risk Index
National Risk Index Data Version: December 2025 (1.20.0) A tornado is a narrow, violently rotating column of air that extends from the base of a thunderstorm to the ground and... -
National Risk Index Census Tracts
National Risk Index Data Version: December 2025 (1.20.0) The National Risk Index Census Tracts feature layer contains Census tract-level data for the Risk Index, Expected Annual... -
National Risk Index Counties
National Risk Index Data Version: December 2025 (1.20.0) The National Risk Index Counties feature layer contains county-level data for the Risk Index, Expected Annual Loss,... -
Earthquake Risk Index Rating, County, National Risk Index
National Risk Index Data Version: December 2025 (1.20.0) An earthquake is a shaking of the earth's surface by energy waves emitted by slowly moving tectonic plates overcoming...