Photo: Pierre Bona · CC BY-SA 3.0Flood mapping exists for Sainte-Brigide-d'Iberville: 1 on record, latest by Gouvernement du Québec
Around Sainte-Brigide-d'Iberville, wildfire is practically absent from the record: 0% within 25 km since 1986, 0.001% a year. Shaking is a bigger worry than in most places, at $0.15 a year per $1,000 of building value ($0.030 typical). About as many homes carry radon around Sainte-Brigide-d'Iberville as elsewhere, 8.2% over the guideline where the typical town has 6.6%. Sainte-Brigide-d'Iberville grades C for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Sainte-Brigide-d'Iberville’s hazards
For Sainte-Brigide-d'Iberville, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Sainte-Brigide-d'Iberville faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Sainte-Brigide-d'Iberville: C
Seismic risk and radon set Sainte-Brigide-d'Iberville’s grade, wildfire can drag it down, and flood mapping stays out of it.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Few fires near Sainte-Brigide-d'Iberville: 0% within 5 km, 0% within 25 km
Past fire around Sainte-Brigide-d'Iberville’s homes, from the national burned-area record, with the fuel within 5 km.
Next to the typical Canadian town (0.000% a year), Sainte-Brigide-d'Iberville’s 0.001% is in the low band.
Sainte-Brigide-d'Iberville’s homes have had no fire within 5 km since 1986; the closest was 7.0 km away.
Land that isn’t forest covers nearly all the ground around Sainte-Brigide-d'Iberville: forest fuel is 0.6% within 5 km and 1.8% 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 Quebec · highest of 514
At 0.001% a year, Sainte-Brigide-d'Iberville ranks 136th of the 514 towns in Quebec; Mistissini leads at 0.31%.
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.
Low, like 92% of the country’s 2,610 towns: the land around Sainte-Brigide-d'Iberville burns, but slower than in the 7.5% above it.
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.
A flood study covers Sainte-Brigide-d'Iberville, from Gouvernement du Québec: 1 on the inventory
What Canada’s Flood Map Inventory lists for Sainte-Brigide-d'Iberville: who studied flooding and where to see their maps.
For Sainte-Brigide-d'Iberville the inventory points to Gouvernement du Québec’s 1991 study, whose map is the one to check.
| Study | By | Year | Status |
|---|---|---|---|
| St-Césaire-Farnham | Gouvernement du Québec | 1991 | final |
Towns with a flood study on file
Flood maps are thinner in Quebec, 45% of towns against 58% nationally, but Sainte-Brigide-d'Iberville has one.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood studies don’t enter the grade; they are listed so you can open the official map for Sainte-Brigide-d'Iberville.
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.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
Shaking is Sainte-Brigide-d'Iberville’s costliest hazard: $0.15 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Sainte-Brigide-d'Iberville’s $0.15 is about 5 times the typical town’s $0.030: it sits in one of Canada’s more active seismic zones.
Shaking damage a year per $1,000 of building value
Typical for its province: Sainte-Brigide-d'Iberville at $0.15 beside a median in Quebec of $0.14, with La Pocatière on top at $0.48.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Sainte-Brigide-d'Iberville sits above most of Canada’s 2,611 towns on earthquake risk; 19% are higher.
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).
For Sainte-Brigide-d'Iberville the model prices shaking damage to buildings, nothing more.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Some radon around Sainte-Brigide-d'Iberville: 8.2% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
8.2% of tested homes around Sainte-Brigide-d'Iberville were over the guideline, much like the typical Canadian town at 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon around Sainte-Brigide-d'Iberville is ordinary for towns in Quebec: 8.2%, beside a median of 8.2%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
37% of Canada’s 2,611 towns share Sainte-Brigide-d'Iberville’s band of 5 to 10%; 26% sit 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.
Neighbouring homes in Sainte-Brigide-d'Iberville can differ a lot; only a long-term test tells you about yours.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Radon tests: the Monteregie health region
Where to get warnings in Sainte-Brigide-d'Iberville
Alerts for Sainte-Brigide-d'Iberville come from Environment and Climate Change Canada and, for emergencies, Alert Ready.
| 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. |
Alert Ready carries evacuation orders for Sainte-Brigide-d'Iberville to phones; CWFIS shows the day’s fire danger.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Sainte-Brigide-d'Iberville
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Sainte-Brigide-d'Iberville | Low | $0.15 | 8.2% | Yes |
| Mont-Saint-Grégoire 3,158 · 7.9 km | Low | $0.16 | 8.2% | None listed |
| Farnham 11,315 · 8.5 km | Low | $0.13 | 8.2% | Yes |
| Sainte-Angèle-de-Monnoir 1,862 · 9.2 km | Low | $0.14 | 8.2% | None listed |
| Sainte-Sabine 1,123 · 9.6 km | Low | $0.13 | 8.2% | None listed |
| Saint-Alexandre 2,685 · 10 km | Low | $0.16 | 8.2% | None listed |
| Saint-Césaire 6,150 · 11 km | Low | $0.13 | 8.2% | Yes |
The neighbour with the most fire is Mont-Saint-Grégoire (low), still no more than Sainte-Brigide-d'Iberville (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Sainte-Brigide-d'Iberville faces
Practical steps for Sainte-Brigide-d'Iberville’s hazards, most pressing first.
- 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.
- Drop, cover and hold on.
- Strap the water heater down.
- Keep 72 hours of supplies.
- Has it had a radon test?
- Check the address on the flood map.
- Are flood and wildfire insured?
- Is earthquake cover included?
What this data can and can’t tell you
- Wildfire counts one way. Burned land within 25 km of where people live, averaged over 1986–2025 and checked for fuel near homes, is the measure; it looks back, not ahead, and only ever counts against Sainte-Brigide-d'Iberville.
- Flood studies aren’t flood zones. The flood inventory points to maps; it is incomplete and not the official source, so ask the municipality about any street in Sainte-Brigide-d'Iberville.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Sainte-Brigide-d'Iberville takes its 2007 health region’s share.
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Sainte-Brigide-d'Iberville’s included.
Questions about flooding and hazards in Sainte-Brigide-d'Iberville
Is radon a problem in Sainte-Brigide-d'Iberville?
8.2% of the 110 homes Health Canada tested around Sainte-Brigide-d'Iberville topped the guideline; your own house needs its own test.
Does Sainte-Brigide-d'Iberville flood?
The inventory lists a study touching Sainte-Brigide-d'Iberville; whether a given street floods is on that map, not in the grade.
How is Sainte-Brigide-d'Iberville’s Hazard risk Grade worked out?
Hazard risk gives Sainte-Brigide-d'Iberville C, weighing earthquakes and radon and counting wildfire only against it.
How big is the earthquake risk in Sainte-Brigide-d'Iberville?
In NRCan’s seismic model, Sainte-Brigide-d'Iberville’s buildings lose $0.15 per $1,000 of value in an average year.
Is Sainte-Brigide-d'Iberville at risk of wildfire?
Not much by Canadian standards: Sainte-Brigide-d'Iberville’s band is low, with 0% of the land within 25 km burned since 1986 (last in 2025), so wildfire doesn’t change its grade.
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).