What is the relative tsunami risk for the covered Hawaii cities?
Honolulu and Kailua use FEMA data for Honolulu County, which has a relative tsunami score of 100.0/100.
Tsunami Risk by City in Hawaii
See FEMA's relative tsunami score and annualized frequency for the county-equivalent area used by these cities.
FEMA area covered
100.0/100
Honolulu County
Covered cities: Honolulu and Kailua
These are relative FEMA scores for county-equivalent areas. They are not annual probabilities or property-level findings.
Hawaii tsunami data
Cities sharing a FEMA area are grouped together and receive the same score.
| Area | FEMA area and cities | Rating | Score | Annualized frequency |
|---|---|---|---|---|
| FEMA | Honolulu County | Very High | 100.0/100 | 0.030 per year |
Occurrence thresholds vary by hazard. The FEMA methodology defines the value for each hazard.
Preparing for tsunami
Ready.gov Be Informed ↗For a home or move
- ✓Confirm the exact hazard using official local maps before making property or insurance decisions.
- ✓Review policy exclusions, deductibles, and temporary-living coverage with a licensed professional.
- ✓Keep inspections, inventories, and critical documents in a secure location you can access after an emergency.
For a household plan
- ✓Know how local officials issue warnings and evacuation instructions.
- ✓Maintain water, food, lighting, medications, and communications for several days.
- ✓Create a household communication plan and practice it before an emergency.
Questions about tsunami risk in Hawaii
Why do these cities use one FEMA score?
FEMA publishes this hazard metric for Honolulu County, not for municipal boundaries or individual properties. The city pages are a way to find the FEMA area that contains each place.
Are these tsunami figures city-level?
No. The city links provide geographic navigation, while the score and frequency cover the FEMA county-equivalent area shown. Address-level conditions require local maps and property details.
Is the FEMA relative score an annual probability?
No. The relative score compares FEMA areas on a 0–100 scale. Annualized frequency appears separately with hazard-specific units.
Source: FEMA National Risk Index v1.19.0, released March 2023. Hazard data covers FEMA county-equivalent areas.