Natural hazards · Ahuimanu

Ahuimanu, HI natural hazards

Most of the natural-hazard damage FEMA expects in Ahuimanu comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 12 claims here since 1978.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations

Expected damage

How exposed is Ahuimanu?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Ahuimanu to be higher than in 84% of U.S. communities, mostly from inland flooding and tsunamis.

Inland flooding63%Tsunamis20%Earthquakes10%Everything else7%

By hazard

What Ahuimanu faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Inland flooding

63% of expected damage

Well above average · higher than 89% of U.S. places

Recorded about 6 times a year in the area

Tsunamis

20% of expected damage

Well above average · among the top 1% of U.S. places

Earthquakes

10% of expected damage

Well above average · higher than 79% of U.S. places

Lower here

Coastal floodingHurricanesTornadoesHailWildfireLandslidesStrong windLightning

Not a risk here

Ice stormsWinter weatherCold wavesHeat wavesDroughtAvalanchesVolcanic activity

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.

Flood insurance claims

Does Ahuimanu flood?

Every paid claim on a federal flood insurance policy in Ahuimanu, from FEMA’s records.

12paid claims since 1978

$365Kpaid to owners

0homes flooded more than once

19782026

of homes in flood zones
are insured

of all homes
are insured

No community discount. Ahuimanu isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Honolulu County.

Disasters that hit Ahuimanu

Federal disasters declared here

None of the disasters declared for Honolulu County shows FEMA aid or repair money reaching Ahuimanu itself in FEMA’s records.

Brought FEMA money into AhuimanuDeclared for Honolulu County only

Honolulu County has had 22 natural disasters declared since 1953, most often floods and hurricanes.

Around Ahuimanu

Ahuimanu and the towns around it

Very lowLowModerateHighVery high

Ahuimanumostly inland floodingVery high

Kahaluumostly inland floodingVery high

Heeiamostly inland floodingHigh

About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.

Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Ahuimanu covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Ahuimanu’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to Ahuimanu. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Ahuimanu total about $2.2M a year, counting buildings, people and crops.

Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.