Natural hazards · Hartley

Hartley, CA natural hazards

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

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

Expected damage

How exposed is Hartley?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Hartley to be higher than in 70% of U.S. communities, mostly from earthquakes and inland flooding.

Earthquakes56%Inland flooding38%Everything else7%

By hazard

What Hartley faces

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

Earthquakes

56% of expected damage

Well above average · higher than 91% of U.S. places

Inland flooding

38% of expected damage

Below average · higher than 46% of U.S. places

Recorded about once a year in the area

Lower here

TornadoesHailWinter weatherHeat wavesWildfireLandslidesStrong windLightningDroughtVolcanic activity

Not a risk here

Coastal floodingHurricanesIce stormsCold wavesAvalanchesTsunamis

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 Hartley flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Solano County.

Disasters that hit Hartley

Federal disasters declared here

None of the disasters declared for Solano County shows FEMA aid or repair money reaching Hartley itself in FEMA’s records.

Brought FEMA money into HartleyDeclared for Solano County only

Solano County has had 27 natural disasters declared since 1953, most often floods and fires.

Around Hartley

Hartley and the towns around it

Very lowLowModerateHighVery high

Allendalemostly inland floodingVery high

Vacavillemostly inland floodingVery high

Hartleymostly earthquakesHigh

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. Hartley 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 Hartley’s own flood-insurance community; household aid to the registrant’s city; repair grants to Hartley. 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.