Photo: Veillg1 · CC0A flood study covers Saint-Pie: 1 on the national inventory, the newest from Gouvernement du Québec
Wildfire is rare near Saint-Pie: 0% of the land within 25 km has burned since 1986, a burn rate of 0.001% a year. Seismic risk runs high: $0.11 of expected damage per $1,000 of buildings a year, the typical town $0.030. Radon is about average around Saint-Pie: 8.2% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Saint-Pie grades C for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Saint-Pie’s hazards
Four national sources, each read for Saint-Pie: earthquakes, radon, past fires and flood studies.
What Saint-Pie faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Saint-Pie: C
Earthquake risk and radon make Saint-Pie’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #130 of 507 in Quebec and #2,062 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Small fires and grass fires are largely missing from the national burned-area record.
Little of the land around Saint-Pie has burned: 0.1% within 5 km, 0% within 25 km since 1986
Past fire around Saint-Pie’s homes, from the national burned-area record, with the fuel within 5 km.
Fire claims 0.001% of the land around Saint-Pie each year, a low band, with the typical Canadian town at 0.000%.
Little near Saint-Pie’s homes can carry a forest fire; only 0.8% of the land within 5 km is forest fuel, and 2.3% 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 513
In the upper half in Quebec but far from Mistissini (0.31%): Saint-Pie ranks 136th of 513, at 0.001% a year.
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, Saint-Pie 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.
Gouvernement du Québec has mapped flooding for Saint-Pie (1 study)
What Canada’s Flood Map Inventory lists for Saint-Pie: who studied flooding and where to see their maps.
One study on the inventory touches Saint-Pie, Gouvernement du Québec’s from 1983, and its area can be large, so it says a map exists, not that the town floods.
| Study | By | Year | Status |
|---|---|---|---|
| Yamaska-St-Hyacinthe-St-césaire | Gouvernement du Québec | 1983 | final |
Towns with a flood study on file
Its flood study sets Saint-Pie 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.
Nothing here counts toward Risk; the studies are pointers to the maps their owners keep for Saint-Pie.
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.
Earthquakes cost buildings in Saint-Pie $0.11 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Saint-Pie’s $0.11 is about 3.6 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
At $0.11, Saint-Pie is below the typical town 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.
25% of Canada’s 2,611 towns expect more shaking damage than Saint-Pie, which places it in the upper third.
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).
The loss is to Saint-Pie’s buildings alone, from ground shaking; infrastructure and secondary hazards are left out.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
8.2% of homes tested around Saint-Pie are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Around Saint-Pie, 8.2% of tested homes topped the guideline, near the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Saint-Pie’s area, at 8.2%, is close to the median in Quebec (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 Saint-Pie’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.
A survey sample isn’t a map: any home in Saint-Pie 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). · Radon tests: the Monteregie health region
Weather and fire alerts for Saint-Pie
Environment and Climate Change Canada issues the weather alerts for Saint-Pie; 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 Saint-Pie, 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 Saint-Pie
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Saint-Pie | Low | $0.11 | 8.2% | Yes |
| Saint-Dominique 3,062 · 7.6 km | Low | $0.11 | 8.2% | None listed |
| Saint-Damase 2,390 · 8.4 km | Low | $0.12 | 8.2% | Yes |
| Saint-Paul-d'Abbotsford 2,891 · 9.3 km | Low | $0.096 | 8.2% | Yes |
| Sainte-Cécile-de-Milton 2,267 · 11 km | Low | $0.098 | 8.2% | None listed |
| Saint-Césaire 6,150 · 14 km | Low | $0.13 | 8.2% | Yes |
| Rougemont 2,832 · 14 km | Low | $0.11 | 8.2% | Yes |
Fire is no heavier anywhere nearby than around Saint-Pie (low), with Saint-Dominique next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Saint-Pie faces
Practical steps for Saint-Pie’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. Wildfire is read from the national burned-area record around Saint-Pie’s homes since 1986, a history of fire that may lower Risk but never raises it.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Saint-Pie’s figure is its subdivision’s.
- Flood studies aren’t flood zones. NRCan’s inventory says where flood mapping exists, not where water goes; the map’s owner is the authority for Saint-Pie.
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Saint-Pie is its health region’s, the survey’s design unit.
Questions about flooding and hazards in Saint-Pie
Does Saint-Pie flood?
There is flood mapping for Saint-Pie on the national inventory, each study linked to its owner’s map, none of them graded.
Is radon a problem in Saint-Pie?
8.2% of the 110 homes Health Canada tested around Saint-Pie topped the guideline; your own house needs its own test.
How big is the earthquake risk in Saint-Pie?
In NRCan’s seismic model, Saint-Pie’s buildings lose $0.11 per $1,000 of value in an average year.
Is Saint-Pie at risk of wildfire?
Not much by Canadian standards: Saint-Pie’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.
How is Saint-Pie’s Hazard risk Grade worked out?
Saint-Pie’s Hazard risk grade is C, 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).