Anchorage Municipality, Alaska: hazard risk

FEMA rates Anchorage Municipality's overall risk Relatively High (score 97.4 of 100, higher than 97% of rated U.S. counties); 4 of its 16 hazards are rated Relatively High or Very High, led by winter weather, avalanche, earthquake. Its storm record holds 569 events since 1950.

FEMA's rating for each hazard

These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.

FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).

National Risk Index (December 2025), Anchorage Municipality, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Winter WeatherVery High98.8$2.2M
AvalancheVery High97.1$6.8M
EarthquakeRelatively High99.5$353M
LandslideRelatively High98.9$1.6M
Volcanic ActivityRelatively Low87.3$7K
WildfireRelatively Low78.6$471K
TsunamiRelatively Low53.8$2.5M
LightningRelatively Low38.6$201K
Cold WaveRelatively Low27.9$492K
Coastal FloodingVery Low28.0$4K
Ice StormVery Low22.5$27K
HailVery Low7.2$27K
TornadoVery Low0.4$1
Riverine FloodingVery Low0.2$397
DroughtNo Rating0.0$0
Strong WindNo Rating0.0$0

Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.

What the record holds

Storm records by hazard, with the county's rank by days with a record per 1,000 sq mi over each hazard's complete period
HazardRecordsDeathsDamageRank in stateRank in U.S.
High wind and dust storms3240$26M2nd of 29189th of 3,080
Winter storms1993$1.1M4th of 291569th of 3,077
Landslides and avalanches2712$58K1st of 2958th of 2,278
Floods90$17M2nd of 292904th of 3,080
Wildfires50–1st of 29711th of 2,972
Extreme cold20–15th of 292834th of 3,076
Rip currents and high surf10$1.3M1st of 29246th of 2,080
Hurricanes and tropical storms10$90K1st of 291067th of 1,849
Lightning10–1st of 292333rd of 3,080

Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.

The full Anchorage Municipality record: every hazard by year and month, the deadliest events and FEMA's declarations.

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