riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Kenai Peninsula Borough Disaster Risk

Kenai Peninsula Borough, Alaska

FEMA Risk Rating

Relatively Moderate

National Percentile

93th

of 3,144 counties

State Rank

#3

of 30 (1 = highest risk)

Flood Risk

44th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 44% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively High

Higher than 97% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 1% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively High

Higher than 99% of US counties

Risk Overview

About Natural Disaster Risk in Kenai Peninsula Borough, Alaska

Kenai Peninsula faces elevated U.S. disaster risk

With a composite score of 93.03, Kenai Peninsula Borough ranks as Relatively Moderate and far exceeds Alaska's state average of 35.22. This south-central region is among the nation's higher-risk counties, driven by seismic and wildfire hazards.

Alaska's highest-risk county overall

Kenai Peninsula Borough edges out Fairbanks North Star Borough (88.52) as Alaska's riskiest region. The peninsula's combination of wildfire exposure and earthquake activity creates the state's most severe natural disaster profile.

Dramatically riskier than Southeast, comparable to Fairbanks

Kenai Peninsula (93.03) vastly exceeds Southeast Alaska counties like Juneau (11.51) and Ketchikan (1.69), and nearly matches Fairbanks (88.52) in overall risk. This south-central location exposes residents to hazards largely absent in the Southeast.

Earthquakes and wildfires present extreme threats

Earthquake risk peaks at 98.70—nearly maximal—while wildfire risk reaches 97.07, making both near-certain hazards residents will face. Flood risk (43.77) poses a meaningful secondary threat during spring snowmelt and coastal storm surge.

Earthquake and wildfire insurance are absolutely essential

Do not skip earthquake and wildfire insurance—both hazards are nearly certain in this region and standard homeowners policies exclude them. Clear brush within 100+ feet of your home, use fire-resistant roofing, and ensure your foundation is bolted to withstand seismic activity.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Kenai Peninsula Borough

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    99th percentile
  2. #2
    WildfirePrepare
    97th percentile
  3. #3
    FloodPrepare
    44th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Kenai Peninsula Borough

Risk Verdict

With a composite score at the 93th percentile, Kenai Peninsula Borough sits above the national median for natural hazard exposure. Proactive preparedness — not reactive response — is key to managing life in one of the country's higher-risk counties; Kenai Peninsula Borough residents should plan accordingly.

Hazard Breakdown

Earthquake risk is Kenai Peninsula Borough's dominant natural hazard, ranked at the 99th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 97th percentile nationally. Additional tracked hazards include flood (44th percentile), tornado (1th percentile).

Preparedness Context

At the 99th percentile nationally for earthquake exposure, Kenai Peninsula Borough households benefit from practicing Drop, Cover, and Hold On — the protocol that minimizes injury during shaking. Getting under a sturdy table or desk and holding on until shaking stops is the key action. Kenai Peninsula Borough's secondary hazard, wildfire at the 97th percentile nationally, requires different alert monitoring and response than earthquake — households benefit from understanding the distinct early-warning systems for each. Building age matters for earthquake risk in Kenai Peninsula Borough: structures built before local seismic code adoption are statistically more vulnerable. Contacting the local building department about retrofit programs can reveal whether your structure qualifies for mitigation assistance.

Regional Context

At 57.8 points above the Alaska state average, Kenai Peninsula Borough carries meaningfully higher natural disaster exposure than a typical Alaska county.

Is your household prepared for Kenai Peninsula Borough's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Kenai Peninsula Borough, AK?
Kenai Peninsula Borough has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 93th 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.
What types of natural hazards affect Kenai Peninsula Borough?
Kenai Peninsula Borough is evaluated for five major natural hazard types: earthquake (99th percentile), wildfire (97th percentile), flooding (44th percentile), tornado (1th percentile). The highest-risk hazard is earthquake at the 99th 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.
How does Kenai Peninsula Borough risk compare to the Alaska average?
Kenai Peninsula Borough's composite risk percentile is 93th, compared to the Alaska state average of 35th percentile. The state's overall risk rating is Very Low. This means Kenai Peninsula Borough faces higher natural disaster risk than the typical county in Alaska.
Is Kenai Peninsula Borough at risk for earthquake?
Yes, Kenai Peninsula Borough's earthquake risk is at the 99th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Kenai Peninsula Borough is at the 44th percentile.
How is natural disaster risk measured?
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.
Why is Kenai Peninsula Borough higher risk than average?
Kenai Peninsula Borough's composite risk score of 93th percentile is above the Alaska state average of 35th percentile. This elevated risk is driven by earthquake exposure (99th percentile), along with wildfire risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Data Source

Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.

Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.