Photo: Parcours riverain - Ville de Montréal from Canada · CC BY 2.0Flood mapping exists for Sainte-Anne-de-Bellevue: 2 on record, latest by Communauté métropolitaine de Montréal
Fire has left almost no mark near Sainte-Anne-de-Bellevue: 0% of the land within 25 km since 1986, 0.001% a year. Earthquakes add more: NRCan’s model puts building losses at $0.17 a year per $1,000 of value, against $0.030 for the typical town. About as many homes carry radon around Sainte-Anne-de-Bellevue as elsewhere, 6.8% over the guideline where the typical town has 6.6%. Sainte-Anne-de-Bellevue grades C for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Sainte-Anne-de-Bellevue’s hazards
For Sainte-Anne-de-Bellevue, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Sainte-Anne-de-Bellevue 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-Anne-de-Bellevue: C
Earthquake risk and radon make Sainte-Anne-de-Bellevue’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #133 of 507 in Quebec and #2,070 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. The radon share rests on 74 home tests in the survey area, so a few homes move it. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Few fires near Sainte-Anne-de-Bellevue: 0% within 5 km, 0% within 25 km
Fires mapped since 1986 around where Sainte-Anne-de-Bellevue’s residents live, and the fuel next to their homes.
The yearly burn rate around Sainte-Anne-de-Bellevue is 0.001%, low beside 0.000% for the typical Canadian town.
Sainte-Anne-de-Bellevue’s homes have had no fire within 5 km since 1986; the closest was 12 km away.
With 1.7% forest fuel within 5 km and 2.6% within 25 km, the land around Sainte-Anne-de-Bellevue gives a fire little to burn.
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
Sainte-Anne-de-Bellevue sits mid-table in Quebec: 136th of 513 towns, at 0.001% a year, well behind Mistissini (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.
The low band takes in 92% of Canada’s 2,610 towns, Sainte-Anne-de-Bellevue among them, though its rate is above zero; 7.5% rank higher.
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.
Sainte-Anne-de-Bellevue is on the flood map inventory: 2 studies, latest by Communauté métropolitaine de Montréal
Flood studies whose area touches Sainte-Anne-de-Bellevue, from NRCan’s inventory, each linked to its owner.
2 studies on the inventory touch Sainte-Anne-de-Bellevue, the newest Communauté métropolitaine de Montréal’s from 2008, and their areas can be large, so they say maps exist, not that the town floods.
| 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
Its flood study sets Sainte-Anne-de-Bellevue apart in Quebec, where 45% of towns have one (Canada: 58%).
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
The 2 studies touching Sainte-Anne-de-Bellevue are spread over time, from the 1970s to the 2000s.
Study dates as the NRCan inventory lists them, one count per study touching Sainte-Anne-de-Bellevue.
Listed, not scored: a flood study proves a map exists, not that Sainte-Anne-de-Bellevue floods.
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 Sainte-Anne-de-Bellevue: $0.17 per $1,000 of buildings a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
Roughly 5.7 times the typical $0.030: Sainte-Anne-de-Bellevue’s $0.17 marks real seismic exposure.
Shaking damage a year per $1,000 of building value
Typical for its province: Sainte-Anne-de-Bellevue at $0.17 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.
More earthquake risk than most: only 14% of Canada’s 2,611 towns are above Sainte-Anne-de-Bellevue.
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 Sainte-Anne-de-Bellevue.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Radon about average around Sainte-Anne-de-Bellevue: 6.8% over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
6.8% of tested homes around Sainte-Anne-de-Bellevue were over the guideline, much like the typical Canadian town at 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The typical town in Quebec has 8.2% over 200 Bq/m³; Sainte-Anne-de-Bellevue’s area has 6.8%, much the same.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Between 5% and 10% of tests over the guideline: Sainte-Anne-de-Bellevue, and 37% of Canada’s 2,611 towns; 26% are 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-Anne-de-Bellevue 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). · Area behind the radon tests figures: the Montreal health region
Where to get warnings in Sainte-Anne-de-Bellevue
Alerts for Sainte-Anne-de-Bellevue 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. |
Evacuation orders for Sainte-Anne-de-Bellevue come from the municipality or the province, while CWFIS maps fire danger every day.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Sainte-Anne-de-Bellevue
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Sainte-Anne-de-Bellevue | Low | $0.17 | 6.8% | Yes |
| Senneville 1,042 · 0.9 km | Low | $0.15 | 6.8% | Yes |
| L'Île-Perrot 11,921 · 2.5 km | Low | $0.16 | 8.2% | Yes |
| Baie-D'Urfé 3,706 · 2.9 km | Low | $0.16 | 6.8% | Yes |
| Terrasse-Vaudreuil 1,883 · 4.0 km | Low | $0.19 | 8.2% | Yes |
| Notre-Dame-de-l'Île-Perrot 11,716 · 4.1 km | Low | $0.14 | 8.2% | Yes |
| Pincourt 15,220 · 4.8 km | Low | $0.17 | 8.2% | Yes |
The neighbour with the most fire is Senneville (low), still no more than Sainte-Anne-de-Bellevue (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Sainte-Anne-de-Bellevue faces
Practical steps for Sainte-Anne-de-Bellevue’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
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Sainte-Anne-de-Bellevue’s census subdivision (a neighbourhood shows its city’s).
- Wildfire counts one way. For Sainte-Anne-de-Bellevue, 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, Sainte-Anne-de-Bellevue takes its 2007 health region’s share.
- 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-Anne-de-Bellevue.
Questions about flooding and hazards in Sainte-Anne-de-Bellevue
How big is the earthquake risk in Sainte-Anne-de-Bellevue?
Expected earthquake damage in Sainte-Anne-de-Bellevue comes to $0.17 a year for each $1,000 that buildings are worth.
How is Sainte-Anne-de-Bellevue’s Hazard risk Grade worked out?
Sainte-Anne-de-Bellevue’s Hazard risk grade is C, built on earthquakes and radon with a one-sided wildfire input.
Is Sainte-Anne-de-Bellevue at risk of wildfire?
Some, but Sainte-Anne-de-Bellevue’s low band (0% of nearby land burned since 1986, latest 2025) is short of the level that counts.
Is radon a problem in Sainte-Anne-de-Bellevue?
The area’s survey found 6.8% of 74 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Sainte-Anne-de-Bellevue.
Does Sainte-Anne-de-Bellevue flood?
The inventory lists a study touching Sainte-Anne-de-Bellevue; whether a given street floods is on that map, not in the 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).