Photo: Jean Gagnon · CC BY-SA 3.0Hazard risk in Auteuil is higher than in 93% of Canadian towns
Little of the land around Auteuil has burned: 0% within 25 km since 1986, or 0.000% a year. Shaking is a bigger worry than in most places, at $0.21 a year per $1,000 of building value ($0.030 typical). More homes than usual carry radon here, 12% over the guideline where the typical town has 6.6%. Auteuil grades D for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Auteuil’s hazards
For Auteuil, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Auteuil faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Auteuil: D
Earthquake risk and radon make Auteuil’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #485 of 507 in Quebec and #2,507 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Wildfire is rare near Auteuil: 0% of the land within 25 km burned since 1986, 0% within 5 km
Past fire around Auteuil’s homes, from the national burned-area record, with the fuel within 5 km.
Auteuil burns at 0.000% a year, low against 0.000% for the typical Canadian town.
Only 4.1% of the land within 25 km of Auteuil is forest fuel, and 0.7% 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
Mistissini has the highest burn rate in Quebec, 0.31% a year; around Auteuil, as around 144 of the 513 towns, it rounds to zero.
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.
Auteuil shares the low band with 92% of Canada’s 2,610 towns, its burn rate rounding to nothing; 7.5% burn faster.
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 Auteuil, from Gouvernement du Québec: 1 on the inventory
What Canada’s Flood Map Inventory lists for Auteuil: who studied flooding and where to see their maps.
The flood study touching Auteuil is Gouvernement du Québec’s, dated 2006; its own map shows the zones street by street.
| Study | By | Year | Status |
|---|---|---|---|
| Moulins-Thérèse-De-Blainville-Deux-Montagnes-Laval | Gouvernement du Québec | 2006 | final |
Towns with a flood study on file
Only 45% of towns in Quebec have a flood study, short of Canada’s 58%; Auteuil is one of them.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Nothing here counts toward Risk; the studies are pointers to the maps their owners keep for Auteuil.
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 Auteuil: $0.21 per $1,000 of buildings a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Auteuil’s $0.21 is about 6.9 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
The typical town in Quebec expects $0.14 a year; Auteuil expects $0.21, and La Pocatière $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.
Few of Canada’s 2,611 towns face more earthquake damage than Auteuil: 7.9% of them.
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 Auteuil.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean). · Earthquake risk: one figure for all of the city of Laval
Test for radon in Auteuil: 12% of area homes were over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · The radon tests numbers here cover the Laval health region
More homes than usual test high around Auteuil: 12% against 6.6% for the typical Canadian town.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Around Auteuil, 12% of tests were over 200 Bq/m³ and 0.9% over 600, against a median of 8.2% in Quebec.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
4.6% of Canada’s 2,611 towns have a higher share of homes over 200 Bq/m³ than Auteuil, in the 10–20% band with 22%.
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.
Radon varies from house to house in Auteuil, so the survey is a reason to test, not a result for yours.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Auteuil
Environment and Climate Change Canada issues the weather alerts for Auteuil; 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 Auteuil, and listen to local authorities for orders.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Auteuil
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Auteuil | Low | $0.21 | 12% | Yes |
| Vimont 31,166 · 3.5 km | Low | $0.21 | 12% | None listed |
| Rosemère 14,198 · 3.6 km | Low | $0.16 | 10% | Yes |
| Sainte-Rose 37,408 · 4.0 km | Low | $0.21 | 12% | Yes |
| Bois-des-Filion 10,666 · 4.2 km | Low | $0.13 | 10% | Yes |
| Lorraine 9,721 · 4.8 km | Low | $0.18 | 10% | Yes |
| Duvernay 37,460 · 5.9 km | Low | $0.21 | 12% | None listed |
Sainte-Rose burns a little more than Auteuil, in the same low band (low here).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Auteuil faces
Practical steps for Auteuil’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. For Auteuil, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Auteuil without grading them.
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Auteuil’s census subdivision (a neighbourhood shows its city’s).
- 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 Auteuil until then.
Questions about flooding and hazards in Auteuil
How big is the earthquake risk in Auteuil?
NRCan’s model expects shaking to cost buildings in Auteuil $0.21 a year for every $1,000 of their value, on average over many years.
How is Auteuil’s Hazard risk Grade worked out?
Hazard risk gives Auteuil D, weighing earthquakes and radon and counting wildfire only against it.
Does Auteuil flood?
A flood study covers Auteuil on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
Is radon a problem in Auteuil?
12% of the 107 homes Health Canada tested around Auteuil topped the guideline; your own house needs its own test.
Is Auteuil at risk of wildfire?
Not much by Canadian standards: Auteuil’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).