North Slope Borough Disaster Risk
North Slope Borough, Alaska
FEMA Risk Rating
Very Low
NRI score (0–100 relative scale)
14.8
FEMA composite county value
State Rank
#20
of 30, sorted high to low by RiskByCounty
Flood NRI score
2.6
higher coastal/inland value
Hazard Risk Breakdown
Five selected hazard categories out of FEMA's 18. Values are FEMA NRI v1.20 scores on a 0–100 relative scale.
Earthquake
50.2 / 100
Wildfire
11.4 / 100
Flood
2.6 / 100
Higher of FEMA Coastal Flooding (0.0) and Inland Flooding (2.6) NRI scores.
Tornado
0.7 / 100
FEMA NRI data summary
Selected hazard scores for North Slope Borough
Among the five hazard categories displayed by RiskByCounty, earthquake has the highest NRI score for this county.
- Earthquake
- 50.2
- Wildfire
- 11.4
- Flood
- 2.6
- Tornado
- 0.7
- Hurricane
- Not available
Higher of FEMA Coastal Flooding and Inland Flooding NRI scores
- Displayed flood score
- 2.6
- Coastal Flooding
- 0.0
- Inland Flooding
- 2.6
These five categories are a selected subset of FEMA's 18 natural hazards. FEMA's composite score and official rating are separate fields in the National Risk Index dataset.
FEMA National Risk Index documentationOfficial Ready.gov resource
Continue to Ready.gov for federal emergency-planning information maintained outside RiskByCounty.
Frequently Asked Questions
How many Alaska county records are included?
Which FEMA county ratings appear in Alaska?
How complete are the five selected hazard fields for Alaska?
What FEMA NRI information is available for North Slope Borough, AK?
Which selected hazard scores are shown for North Slope Borough?
How is flood displayed for North Slope Borough?
Published by RiskByCounty
County summaries are deterministic transformations of frozen FEMA county fields. No external subject-matter reviewer is credited.
Published · Updated
Data Source
County data sourced from FEMA National Risk Index v1.20, released December 2025. Values are labeled NRI score (0–100 relative scale). RiskByCounty displays five selected hazard categories out of FEMA's 18; flood is the higher of the Coastal Flooding and Inland Flooding source scores.
RiskByCounty presents county-level source fields and deterministic arithmetic summaries.