Photo: Parcours riverain - Ville de Montréal from Canada · CC BY 2.0Baie-D'Urfé is on Canada’s flood inventory: 2 listed, led by Communauté métropolitaine de Montréal
The national fire record shows next to nothing around Baie-D'Urfé, 0% of the land within 25 km since 1986 (0.001% a year). Seismic risk runs high: $0.16 of expected damage per $1,000 of buildings a year, the typical town $0.030. Radon around Baie-D'Urfé is ordinary for Canada: 6.8% of tested homes over the guideline (6.6% typical). Baie-D'Urfé grades C for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Baie-D'Urfé’s hazards
For Baie-D'Urfé, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Baie-D'Urfé faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Baie-D'Urfé grades C for hazard risk
Two inputs always count for Baie-D'Urfé, earthquakes and radon; the third, wildfire, counts only against a town.
Its place: #127 of 507 in Quebec and #2,055 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Only 74 homes were tested in the survey area, so the radon share is rough. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Little of the land around Baie-D'Urfé has burned: 0% within 5 km, 0% within 25 km since 1986
Past fire around Baie-D'Urfé’s homes, from the national burned-area record, with the fuel within 5 km.
Baie-D'Urfé burns at 0.001% a year, low against 0.000% for the typical Canadian town.
The closest burn since 1986 lies 11 km from Baie-D'Urfé’s homes, none within 5 km.
Only 2.3% of the land within 25 km of Baie-D'Urfé is forest fuel, and 1.7% close in.
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 513
At 0.001% a year, Baie-D'Urfé ranks 136th of the 513 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 Baie-D'Urfé 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.
Baie-D'Urfé is on the flood map inventory: 2 studies, latest by Communauté métropolitaine de Montréal
What Canada’s Flood Map Inventory lists for Baie-D'Urfé: who studied flooding and where to see their maps.
Communauté métropolitaine de Montréal and others have studied flooding in areas that include Baie-D'Urfé: 2 studies, the latest from 2008.
| Study | By | Year | Status |
|---|---|---|---|
| Montréal-Argenteuil-Deux-Montagnes-Vaudreuil-Soulanges | Communauté métropolitaine de Montréal | 2008 | final |
| St-Louis-Varennes | Gouvernement du Québec | 1977 | final |
Towns with a flood study on file
Mapping in Quebec reaches 45% of towns, Baie-D'Urfé among them, below the 58% across Canada.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood mapping around Baie-D'Urfé has come in steps: 2 studies from the 1970s to the 2000s.
Study dates as the NRCan inventory lists them, one count per study touching Baie-D'Urfé.
The grade leaves flood out, since a study area says nothing about how many of Baie-D'Urfé’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.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
High seismic risk in Baie-D'Urfé: $0.16 per $1,000 of buildings a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
The typical town loses $0.030 a year to shaking; Baie-D'Urfé loses $0.16, 5.4 times as much.
Shaking damage a year per $1,000 of building value
Baie-D'Urfé’s $0.16 is close to the median in Quebec, $0.14; La Pocatière is highest 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.
More earthquake risk than most: only 14% of Canada’s 2,611 towns are above Baie-D'Urfé.
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).
What a quake does after the shaking, fire, landslides, tsunami, falls outside NRCan’s figure for Baie-D'Urfé.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
6.8% of homes tested around Baie-D'Urfé are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Baie-D'Urfé’s area sits close to the typical Canadian town: 6.8% over the guideline, against 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon around Baie-D'Urfé is ordinary for towns in Quebec: 6.8%, 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.
Baie-D'Urfé is in the 5–10% band with 37% of Canada’s 2,611 towns; 26% have more.
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.
Whatever Baie-D'Urfé’s area share, the reading that matters is your own home’s, over a winter.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Radon tests: the Montreal health region
Where to get warnings in Baie-D'Urfé
Environment and Climate Change Canada issues the weather alerts for Baie-D'Urfé; 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. |
For fires near Baie-D'Urfé, the national fire information system maps danger and active fires daily; local authorities give any evacuation order.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Baie-D'Urfé
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Baie-D'Urfé | Low | $0.16 | 6.8% | Yes |
| Sainte-Anne-de-Bellevue 5,393 · 2.9 km | Low | $0.17 | 6.8% | Yes |
| Notre-Dame-de-l'Île-Perrot 11,716 · 3.5 km | Low | $0.14 | 8.2% | Yes |
| Senneville 1,042 · 3.7 km | Low | $0.15 | 6.8% | Yes |
| Beaconsfield 19,430 · 4.1 km | Low | $0.17 | 6.8% | Yes |
| L'Île-Perrot 11,921 · 4.4 km | Low | $0.16 | 8.2% | Yes |
| Kirkland 19,696 · 5.3 km | Low | $0.20 | 6.8% | Yes |
The neighbour with the most fire is Sainte-Anne-de-Bellevue (low), still no more than Baie-D'Urfé (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Baie-D'Urfé faces
What to do about the hazards Baie-D'Urfé faces, and what to ask before you buy.
- 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
- 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 Baie-D'Urfé.
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Baie-D'Urfé’s census subdivision (a neighbourhood shows its city’s).
- Wildfire counts one way. For Baie-D'Urfé, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Baie-D'Urfé takes its 2007 health region’s share.
Questions about flooding and hazards in Baie-D'Urfé
Is Baie-D'Urfé at risk of wildfire?
Fire has reached 0% of the land around Baie-D'Urfé since 1986 (last in 2025); at low, it neither helps nor hurts the grade.
How big is the earthquake risk in Baie-D'Urfé?
NRCan’s model expects shaking to cost buildings in Baie-D'Urfé $0.16 a year for every $1,000 of their value, on average over many years.
How is Baie-D'Urfé’s Hazard risk Grade worked out?
Baie-D'Urfé’s Hazard risk grade is C, built on earthquakes and radon with a one-sided wildfire input.
Does Baie-D'Urfé flood?
The inventory lists a study touching Baie-D'Urfé; whether a given street floods is on that map, not in the grade.
Is radon a problem in Baie-D'Urfé?
Around Baie-D'Urfé, 74 survey homes were tested and 6.8% came in over 200 Bq/m³, a guide to the area, not to any one home.
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).