Photo: Not specified - non spécifié · Public domainRadon is Allardville’s main hazard: 40% of tested homes in its area top Health Canada’s guideline
Fire reaches the land around Allardville now and then: 8.4% within 25 km since 1986 (0.21% a year), below the high band. Shaking is about as much of a worry in Allardville as in most places, at $0.048 a year per $1,000 of building value ($0.030 typical). Hazard risk gives Allardville a grade of D; its wildfire band pulls it down.
What stands out about Allardville’s hazards
Four national sources, each read for Allardville: earthquakes, radon, past fires and flood studies.
What Allardville faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Allardville: D
The grade weighs Allardville’s seismic risk and radon equally, and wildfire is one-sided: a high band counts against a town, a low one earns nothing.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Small fires and grass fires are largely missing from the national burned-area record.
Some fire around Allardville: 8.4% of the land within 25 km since 1986, 6.9% within 5 km
Fires mapped since 1986 around where Allardville’s residents live, and the fuel next to their homes.
At 0.21% of the land a year, Allardville’s burn rate is moderate; the typical Canadian town sees 0.000%.
88% of the land within 5 km of Allardville is forest fuel, close to the 89% within 25 km.
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 New Brunswick · highest of 61
Allardville ranks 5th of the 61 towns in New Brunswick for burn rate, at 0.21% a year; Tracadie leads with 0.28%.
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 Allardville 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.
The flood map inventory lists nothing for Allardville
Flood studies whose area touches Allardville, from NRCan’s inventory, each linked to its owner.
Nationally, Allardville has no listed flood study; the municipality is the place to ask.
Towns with a flood study on file
93% of towns in New Brunswick have a flood study, more than Canada’s 58%; Allardville 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.
Flood is shown here, never graded: a study says where a map exists, not how many of Allardville’s homes stand in a flood zone.
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.”
Expected shaking damage in Allardville: $0.048 a year per $1,000
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
Nothing unusual about Allardville’s ground: $0.048 against a typical $0.030, 1.6 times.
Shaking damage a year per $1,000 of building value
Earthquake risk in New Brunswick peaks in St. Stephen ($0.16); Allardville, at $0.048, sits above the median of $0.036.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
In the upper part of Canada’s range: 31% of its 2,611 towns expect more damage than Allardville.
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).
Roads, pipes and bridges aren’t in Allardville’s figure, nor landslides or tsunami: it is buildings and shaking.
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 Allardville: 40% of area homes were over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
Allardville’s area, at 40%, is above the 6.6% of the typical Canadian town, so testing is worth more here than most places. Allardville shares its radon tests numbers with the rest of the Region 6 health region.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon runs higher around Allardville than in most towns in New Brunswick: 40% over the guideline (20% is typical), 17% over 600.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
No band is higher: Allardville is among the 1.5% of Canada’s towns with 30% or more of tests over 200 Bq/m³.
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.
A survey sample isn’t a map: any home in Allardville can be high, and a three-month test is the only way to know.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Allardville
Environment and Climate Change Canada issues the weather alerts for Allardville; 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. |
In fire season, check CWFIS for danger and active fires around Allardville, and listen to local authorities for orders.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Get ready for what Allardville faces
What to do about the hazards Allardville 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
- Radon is a survey. Radon figures pool the survey’s home tests by area: postal areas once their boundaries arrive, the 2007 health region around Allardville until then.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Allardville’s homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Allardville without grading them.
- Earthquakes are modelled. Shaking damage is modelled from the ground, the buildings and the odds of each quake, and published for whole subdivisions such as Allardville’s.
Questions about flooding and hazards in Allardville
Is Allardville at risk of wildfire?
Less than most of Canada: 8.4% of the land within 25 km of Allardville has burned since 1986, the last in 2025, a moderate band that leaves Risk alone.
Does Allardville flood?
Nothing is listed for Allardville on the national inventory (0); local maps may still exist with the municipality.
How big is the earthquake risk in Allardville?
Expected earthquake damage in Allardville comes to $0.048 a year for each $1,000 that buildings are worth.
Is radon a problem in Allardville?
In Health Canada’s survey, 40% of 115 homes tested in Allardville’s area were above 200 Bq/m³, though only a test tells you about one house.
How is Allardville’s Hazard risk Grade worked out?
Allardville’s Hazard risk grade is D, built on earthquakes and radon with a one-sided wildfire input.
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).