Natural hazards · Etna

Etna, CA natural hazards

Most of the natural-hazard damage FEMA expects in Etna comes from wildfires, and overall the risk is very high for a U.S. community. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Etna?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Etna to be higher than in 99% of U.S. communities, mostly from wildfires and inland flooding.

Wildfire48%Inland flooding34%Avalanches6%Drought6%Everything else6%

By hazard

What Etna faces

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

Wildfire

48% of expected damage

Well above average · among the top 1% of U.S. places

Inland flooding

34% of expected damage

Well above average · higher than 96% of U.S. places

Recorded about once a year in the area

Avalanches

6% of expected damage

Well above average · among the top 1% of U.S. places

Recorded about once every 30 years in the area

Drought

6% of expected damage

Recorded about 67 times a year in the area

Lower here

TornadoesHailWinter weatherHeat wavesEarthquakesLandslidesStrong windLightningVolcanic activity

Not a risk here

Coastal floodingHurricanesIce stormsCold wavesTsunamis

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 Etna flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Siskiyou County.

Disasters that hit Etna

2 federal disasters brought FEMA money here

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

Brought FEMA money into EtnaDeclared for Siskiyou County only

2020

Wildfires

2 households applied for aid

2005

Severe Storms, Flooding, Mudslides, and Landslides

11 households applied for aid $4K aid approved $82K to the City of Etna for repairs

Siskiyou County has had 20 natural disasters declared since 1953, most often fires and floods.

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