Iliamna’s biggest natural hazard is earthquakes
Most of the natural-hazard damage FEMA expects in Iliamna comes from earthquakes, and overall the risk is very high for a U.S. community.
What stands out about Iliamna’s weather risks
Read from FEMA’s records below. The page puts what stands out first.
Does Iliamna flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Iliamna. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
How exposed is Iliamna?
FEMA expects yearly storm and flood damage to homes and buildings here to be higher than in 80% of U.S. communities, mostly from earthquakes and tsunamis.
Rated higher than 209 of the 352 Alaska towns we cover.
Iliamna is smaller than a census tract, so it shares the figures of the tract around its center.
What Iliamna faces
Each hazard’s share of the damage FEMA expects here, and how it compares with the rest of the country.
Earthquakes
Tsunamis
Cold waves
Federal disasters declared here
None of the disasters declared for Lake and Peninsula Borough shows FEMA aid or repair money reaching Iliamna itself in FEMA’s records.
Lake and Peninsula Borough has had 1 natural disaster declared since 1953, most often severe storms.
Get ready for what Iliamna actually faces
A short kit for its top hazards, what to check before you buy, and where neighbors get alerts.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- Strong shaking or a sudden drop in the sea means head for high ground now.
- Learn the tsunami route signs near the shore.
- Stay away until officials say it’s safe.
- Let faucets drip so pipes don’t freeze.
- Know where your water shutoff is.
- Never heat the house with the oven or a grill.
- Look up the address on FEMA’s flood map.
- Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
- Get a flood insurance quote early: policies usually start 30 days after you buy.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
What these numbers can and can’t tell you
- An average, not a forecast. FEMA’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 there, so a big city isn’t rated riskier just for having more buildings.
- Money that reached town. Flood claims are matched to Iliamna’s own flood-insurance community; household aid to the registrant’s city; repair grants to Iliamna.
- It follows property value. FEMA’s model weighs damage to buildings, so a place that recently lost many homes can rate lower than it feels.
Storm stories
Memories, warnings and help from neighbors in Iliamna.
Your answer becomes a post in Town Square.
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. Preparedness tips: Ready.gov. An average of past damage, not a forecast.