Kenai Peninsula Borough
Alaska — Natural Disaster Risk Assessment
MediumComposite Risk Score
National percentile: 93th
Kenai Peninsula Borough faces medium composite natural disaster risk (NRI Risk Index score 93.0, 93th national percentile), driven primarily by avalanche and earthquake exposure. Expected annual loss across all 18 hazard types is $121M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Avalanche | Very High | 1.03 / yr | $10M |
| Earthquake | High | 0.19 / yr | $87M |
| Landslide | Medium | 133.35 / yr | $285K |
| Wildfire | Medium | 0.00 / yr | $7M |
| Winter Weather | High | 9.18 / yr | $535K |
| Volcanic Activity | Low | 0.03 / yr | $13K |
| Tsunami | Medium | 0.30 / yr | $10M |
| Riverine Flood | Low | 0.01 / yr | $5M |
| Coastal Flood | Very Low | 0.01 / yr | $7K |
| Ice Storm | Very Low | 0.01 / yr | $21K |
| Lightning | Very Low | 6.76 / yr | $47K |
| Cold Wave | Very Low | 1.14 / yr | $129K |
| Drought | Very Low | 0.39 / yr | $0 |
| Hail | Very Low | 0.01 / yr | $4K |
| Tornado | Very Low | 0.00 / yr | $3 |
| Heat Wave | Very Low | 0.00 / yr | $0 |
| Hurricane | Very Low | 0.00 / yr | $0 |
| Strong Wind | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Kenai Peninsula Borough?
Kenai Peninsula Borough has a composite FEMA National Risk Index score of 93.0 out of 100, placing it in the Medium category and the 93th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Kenai Peninsula Borough?
The three highest-rated hazards are Avalanche (Very High, $10M EAL), Earthquake (High, $87M EAL), Landslide (Medium, $285K EAL). These account for most of the county's expected annual losses.
How does Kenai Peninsula Borough compare to other Alaska counties?
Kenai Peninsula Borough ranks #3 of 30 Alaska counties for overall natural disaster risk, with a medium rating.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Kenai Peninsula Borough's $121M EAL is a statistical average, not a guarantee for any specific year or address.