North Slope Borough Disaster Risk

North Slope Borough has a FEMA National Risk Index rating of Very Low, placing it in the 15th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.

North Slope Borough is evaluated for five major natural hazard types: earthquake (50th percentile), wildfire (11th percentile), flooding (3th percentile), tornado (1th percentile). The highest-risk hazard is earthquake at the 50th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.

North Slope Borough's composite risk percentile is 15th, compared to the Alaska state average of 35th percentile. The state's overall risk rating is Very Low. This means North Slope Borough faces lower natural disaster risk than the typical county in Alaska.

Yes, North Slope Borough's earthquake risk is at the 50th percentile nationally. This is above the national median. For flooding specifically, North Slope Borough is at the 3th percentile.

FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.

North Slope Borough's composite risk score of 15th percentile is below the Alaska state average of 35th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is earthquake at the 50th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.