Natural hazards · Magna

Magna, UT natural hazards

Most of the natural-hazard damage FEMA expects in Magna comes from earthquakes, and overall the risk is moderate for a U.S. community. Flood insurance has paid 2 claims here since 1983. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Magna?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Magna to be higher than in 45% of U.S. communities, mostly from earthquakes and inland flooding.

Earthquakes74%Inland flooding15%Everything else11%

By hazard

What Magna faces

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

Earthquakes

74% of expected damage

Well above average · higher than 88% of U.S. places

Inland flooding

15% of expected damage

Well below average · higher than 9% of U.S. places

Recorded about once a year in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong windLightningVolcanic activity

Not a risk here

Coastal floodingHurricanesDroughtAvalanchesTsunamis

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 Magna flood?

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

2paid claims since 1983

$4Kpaid to owners

0homes flooded more than once

19832026

Biggest named events

Tropical Storm Hilary: 1 claim, $3K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Salt Lake County.

Disasters that hit Magna

1 federal disaster brought FEMA money here

Disasters the President declared that paid out in Magna itself: aid to households, or repair grants to the City of Magna.

Brought FEMA money into MagnaDeclared for Salt Lake County only

2020

Earthquake and Aftershocks

173 households applied for aid $197K aid approved

Salt Lake County has had 10 natural disasters declared since 1953, most often floods and fires.

Around Magna

Magna and the towns around it

Very lowLowModerateHighVery high

Salt Lake Citymostly earthquakesVery high

West Valley Citymostly earthquakesHigh

Magnamostly earthquakesModerate

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. Magna covers 4 census tracts, combined by population.

Money that reached townFlood claims are matched to Magna’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the City of Magna. 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 Magna total about $4.9M 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.