Natural hazards · Adak

Adak, AK natural hazards

Most of the natural-hazard damage FEMA expects in Adak comes from tsunamis, and overall the risk is very high for a U.S. community.

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

Expected damage

How exposed is Adak?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Adak to be higher than in 100% of U.S. communities, mostly from tsunamis.

Tsunamis93%Earthquakes7%

By hazard

What Adak faces

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

Tsunamis

93% of expected damage

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

Earthquakes

7% of expected damage

Well above average · higher than 97% of U.S. places

Lower here

TornadoesIce stormsWinter weatherCold wavesLandslidesLightningVolcanic activity

Not a risk here

Inland floodingCoastal floodingHurricanesHailHeat wavesWildfireStrong windDroughtAvalanches

Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.

Flood insurance claims

Does Adak flood?

FEMA's records show no paid flood insurance claims in Adak.

Disasters that hit Adak

Federal disasters declared here

None of the disasters declared for Aleutians West Census Area shows FEMA aid or repair money reaching Adak itself in FEMA’s records.

Brought FEMA money into AdakDeclared for Aleutians West Census Area only

Aleutians West Census Area has had 4 natural disasters declared since 1953, most often severe storms and floods.

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. Adak is smaller than a census tract, so it shares the figures of the tract around its center.

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

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.