Anchorage, Alaska: natural disaster risk
How exposed Anchorage is to floods, storms and other hazards, from FEMA and NOAA records for Anchorage Municipality.
Anchorage is a city of 288,976 people in Anchorage Municipality, Alaska. FEMA's National Risk Index rates Anchorage Municipality relatively high for natural hazards overall, higher than most of the US. The costliest hazards there are earthquake, avalanche and tsunami, with about $367 million in expected losses a year across the county. The weather service has logged 4 storm reports in the county since 1997, including 0 tornadoes and 1 floods. About 0.4% of homes in the county carry federal flood insurance.
Risk figures are for Anchorage Municipality. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Anchorage
Full Anchorage Municipality report ›- Ask whether an older house is bolted to its foundation.
- Consider separate earthquake insurance where risk is high.
- Check avalanche forecasts before backcountry trips.
- Ask about slide paths near mountain homes.
- Learn the tsunami evacuation route signs.
- If you feel a strong quake near the coast, move to high ground right away.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Earthquake | $353M | |
| Avalanche | $7M | |
| Tsunami | $2M | |
| Winter weather | $2M | |
| Landslide | $2M | |
| Cold wave | $492K | |
| Wildfire | $471K | |
| Lightning | $201K | |
| Hail | $27K | |
| Ice storm | $27K | |
| Volcanic activity | $7K | |
| Coastal flooding | $4K |
Homes in Anchorage
Older homes and mobile homes usually take more damage in storms, floods and earthquakes. Ask about roof age, flood history and retrofits before you buy or rent.
Common questions about Anchorage
Is Anchorage safe from natural disasters?
Anchorage is in Anchorage Municipality, which FEMA's National Risk Index rates relatively high overall, higher than most of the US. The biggest hazards are earthquake, avalanche, tsunami. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Anchorage?
By expected yearly losses in Anchorage Municipality, the top hazards are earthquake (High), avalanche (Very High), tsunami (Low). Anchorage Municipality has been part of 5 federal disaster or emergency declarations for natural events.
Does Anchorage get tornadoes?
Tornadoes are rare here. NOAA has no county tornado reports for Anchorage Municipality since 1950.
Do I need flood insurance in Anchorage?
Standard home insurance does not cover floods. In Anchorage Municipality, about 0.4% of homes have federal flood insurance, and FEMA rates coastal flooding risk very low. Check the FEMA flood map for your address and get a quote even outside a high-risk zone.