Photo: CanadianEman · CC BY-SA 3.0Hazards in Fort Nelson: wildfire moderate, radon over the guideline in 10% of tested homes
Some 5.1% of the land within 25 km of Fort Nelson has burned since 1986; at 0.13% a year that is moderate, not high. Shaking is about as much of a worry in Fort Nelson as in most places, at $0.023 a year per $1,000 of building value ($0.030 typical). Hazard risk gives Fort Nelson a grade of B−; its wildfire band pulls it down.
What stands out about Fort Nelson’s hazards
Four national sources, each read for Fort Nelson: earthquakes, radon, past fires and flood studies.
What Fort Nelson faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Fort Nelson: B−
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Fort Nelson with little fire nearby would get no credit for it.
Its place: #96 of 254 in British Columbia and #1,572 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Small fires and grass fires are largely missing from the national burned-area record.
Fire reaches the land around Fort Nelson: 1.7% within 5 km, 5.1% within 25 km
Fires mapped since 1986 around where Fort Nelson’s residents live, and the fuel next to their homes.
Moderate: the land around Fort Nelson burns at 0.13% a year, where the typical Canadian town sees 0.000%.
The nearer ring around Fort Nelson is less wooded (73% forest fuel) than the land out to 25 km (82%).
Shares of land within 5 and 25 km of populated blocks: burned at least once in 1986–2025 (CWFIS burned-area composite), forest fuel and grass (fire behaviour fuel types, 2026, 250 m grid).
Burn rate a year, towns in British Columbia · highest of 255
At 0.13% a year, Fort Nelson is near the top in British Columbia: 49th of 255, behind Oliver (0.98%).
Each bar: the yearly average share of land within 25 km of a town’s homes that burned, 1986–2025 (CWFIS); the seven highest towns of 2,500 people or more.
Moderate puts Fort Nelson above most of Canada’s 2,610 towns, yet 2.1% rank high or very high and 5.4% share its band.
Bands of the yearly burn rate: low under 0.05%, moderate under 0.25%, high under 1%, very high 1% or more; towns of 2,500 people or more.
Fire danger and active fires (CWFIS)
Canadian Wildland Fire Information System: National Burned Area Composite 1986–2025 and fire behaviour fuel types (2026), Natural Resources Canada. Measured within 25 km and 5 km of each populated dissemination area; past fire, not a forecast.
No flood study is listed for Fort Nelson
Flood studies whose area touches Fort Nelson, from NRCan’s inventory, each linked to its owner.
NRCan’s inventory is silent on Fort Nelson, so any flood map would be the municipality’s own.
Towns with a flood study on file
76% of towns in British Columbia have a flood study, more than Canada’s 58%; Fort Nelson is not yet one of them.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
The grade leaves flood out, since a study area says nothing about how many of Fort Nelson’s homes are at risk.
The inventory’s own caution (NRCan): “The Canada Flood Map (CFM) does not include every flood hazard map in Canada and may be incomplete or contain inaccuracies. It should not be relied upon as the official source of flood mapping information. Furthermore, if a map appears to be missing, this does not necessarily mean that the area has never been mapped. For the official version of a map, updated information, or confirmation of applicable regulations, please contact the local authority responsible for flood mapping.”
Earthquakes cost buildings in Fort Nelson $0.023 per $1,000 a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
At $0.023 per $1,000, Fort Nelson’s earthquake risk is about the typical Canadian town’s ($0.030; 0.8 times).
Shaking damage a year per $1,000 of building value
Earthquake risk in British Columbia peaks in Duncan ($1.33); Fort Nelson, at $0.023, is below the median of $0.36.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Middle of the pack: 54% of Canada’s 2,611 towns have more earthquake risk than Fort Nelson.
Each column: the share of Canada’s towns of 2,500 people or more in that range of yearly loss per $1,000 (NRCan, 2022).
The model counts damage to Fort Nelson’s buildings and their occupants from shaking only: not liquefaction, landslides, tsunami or fires after a quake.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Test for radon in Fort Nelson: 10% of area homes were over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
Radon runs above the typical Canadian town (6.6%) in Fort Nelson’s area, at 10%. Nobody publishes radon tests for Fort Nelson alone, so this card uses the figure for the Northeast health region.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
More homes top the guideline around Fort Nelson (10%) than in the typical town in British Columbia (1.8%); 0.5% went over 600.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
One test in ten or more tops the guideline around Fort Nelson, as in 22% of Canada’s 2,611 towns; 4.6% go higher.
Each bar: the share of Canada’s towns of 2,500 people or more whose survey area had that share of tests over 200 Bq/m³.
The survey sampled homes around Fort Nelson; it can’t tell you your basement’s level.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Fort Nelson
Environment and Climate Change Canada issues the weather alerts for Fort Nelson; Alert Ready carries the urgent ones to phones, radio and TV.
| Alert | What it means |
|---|---|
| Warning | Severe weather is happening or about to: act now. |
| Watch | Conditions favour severe weather: be ready. |
| Advisory | Weather that is less severe but could disrupt the day. |
| Special weather statement | Unusual weather worth knowing about. |
| Special air quality statement | Poor air, often wildfire smoke. |
Smoke and fire warnings for Fort Nelson come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Get ready for what Fort Nelson faces
What to do about the hazards Fort Nelson faces, and what to ask before you buy.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Test for three months in winter.
- Over 200 Bq/m³: fix it.
- Kits are cheap; pros test too.
- Never drive through floodwater.
- Move papers and medicines upstairs.
- Ask whether your street is mapped.
- Has it had a radon test?
- Ask the municipality for flood maps.
- How close is the forest edge?
- Are flood and wildfire insured?
What this data can and can’t tell you
- Flood studies aren’t flood zones. NRCan’s inventory says where flood mapping exists, not where water goes; the map’s owner is the authority for Fort Nelson.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Fort Nelson’s figure is its subdivision’s.
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Fort Nelson is its health region’s, the survey’s design unit.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Fort Nelson’s homes since 1986, a history of fire that may lower Risk but never raises it.
Questions about flooding and hazards in Fort Nelson
Is Fort Nelson at risk of wildfire?
Less than most of Canada: 5.1% of the land within 25 km of Fort Nelson has burned since 1986, the last in 2025, a moderate band that leaves Risk alone.
Is radon a problem in Fort Nelson?
In Health Canada’s survey, 10% of 200 homes tested in Fort Nelson’s area were above 200 Bq/m³, though only a test tells you about one house.
Does Fort Nelson flood?
Nothing is listed for Fort Nelson on the national inventory (0); local maps may still exist with the municipality.
How big is the earthquake risk in Fort Nelson?
Expected earthquake damage in Fort Nelson comes to $0.023 a year for each $1,000 that buildings are worth.
How is Fort Nelson’s Hazard risk Grade worked out?
Hazard risk gives Fort Nelson B−, weighing earthquakes and radon and counting wildfire only against it.
Seismic risk: Natural Resources Canada. Radon: Health Canada. Wildfire: Canadian Wildland Fire Information System. Flood studies: Natural Resources Canada, Canada Flood Map Inventory. Contains information licensed under the Open Government Licence – Canada.
Sources: NRCan, Canada’s Seismic Risk Model 2022 · Health Canada, Cross-Canada Survey of Radon Concentrations in Homes · CWFIS, National Burned Area Composite and FBP fuel types · NRCan, Canada Flood Map Inventory. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).