Photo: Jérémie Sénéchal-Castonguay · CC BY-SA 4.0Wildfire low, radon 8.2%: how Sainte-Clotilde stands on hazards
Wildfire barely registers for Sainte-Clotilde, at 0% of the land within 25 km since 1986 (0.001% a year). Earthquakes add more: NRCan’s model puts building losses at $0.20 a year per $1,000 of value, against $0.030 for the typical town. Hazard risk gives Sainte-Clotilde a grade of C−, from earthquakes and radon alone.
What stands out about Sainte-Clotilde’s hazards
For Sainte-Clotilde, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Sainte-Clotilde 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-Clotilde: C−
Two inputs always count for Sainte-Clotilde, earthquakes and radon; the third, wildfire, counts only against a town.
Its place: #372 of 507 in Quebec and #2,347 of 2,589 Canadian towns.
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-Clotilde: 0% within 5 km, 0% within 25 km
Past fire around Sainte-Clotilde’s homes, from the national burned-area record, with the fuel within 5 km.
At 0.001% of the land a year, Sainte-Clotilde’s burn rate is in the low band; the typical Canadian town sees 0.000%.
Since 1986 the nearest fire to Sainte-Clotilde’s homes came within 14 km, never inside 5 km.
About as much forest grows next to Sainte-Clotilde’s homes (6.6% within 5 km) as across 25 km (5.2%).
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, Sainte-Clotilde 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.
Some fire is mapped around Sainte-Clotilde, but not enough to leave the low band, where 92% of Canada’s 2,610 towns are; 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.
No flood study is listed for Sainte-Clotilde
What Canada’s Flood Map Inventory lists for Sainte-Clotilde: who studied flooding and where to see their maps.
The inventory has nothing for Sainte-Clotilde, but a local or conservation-authority map may still exist.
Towns with a flood study on file
Only 45% of towns in Quebec have a flood study, short of Canada’s 58%, and Sainte-Clotilde is not among them.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
The grade leaves flood out, since a study area says nothing about how many of Sainte-Clotilde’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.”
Earthquakes cost buildings in Sainte-Clotilde $0.20 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
At $0.20 per $1,000, Sainte-Clotilde carries roughly 6.7 times the typical Canadian town’s earthquake risk ($0.030).
Shaking damage a year per $1,000 of building value
Above the middle in Quebec: Sainte-Clotilde’s $0.20 against a median of $0.14, with La Pocatière 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.
11% of Canada’s 2,611 towns expect more shaking damage than Sainte-Clotilde, 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).
Only shaking damage to buildings in Sainte-Clotilde is counted; landslides, liquefaction, tsunami and fire after a quake aren’t.
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 Sainte-Clotilde are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Radon tests for the Monteregie health region
Sainte-Clotilde’s area, at 8.2%, is close to the 6.6% of the typical Canadian town.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Around Sainte-Clotilde, 8.2% of tests topped the guideline, about the same as the typical town in Quebec (8.2%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
26% of Canada’s 2,611 towns have more homes over 200 Bq/m³ than Sainte-Clotilde’s 5–10% band, which holds 37%.
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.
Health Canada advises testing every home, Sainte-Clotilde’s included, whatever the area’s figure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Sainte-Clotilde
Environment and Climate Change Canada issues the weather alerts for Sainte-Clotilde; 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. |
Smoke and fire warnings for Sainte-Clotilde come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Sainte-Clotilde’s neighbours compare on hazards
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Sainte-Clotilde | Low | $0.20 | 8.2% | None listed |
| Saint-Chrysostome 2,641 · 6.7 km | Low | $0.20 | 8.2% | Yes |
| Hemmingford 2,206 · 8.3 km | Low | $0.18 | 8.2% | None listed |
| Saint-Urbain-Premier 1,380 · 11 km | Low | $0.19 | 8.2% | None listed |
| Saint-Patrice-de-Sherrington 1,996 · 13 km | Low | $0.18 | 8.2% | None listed |
| Saint-Michel 3,672 · 15 km | Low | $0.18 | 8.2% | None listed |
| Très-Saint-Sacrement 1,223 · 15 km | Low | $0.20 | 8.2% | Yes |
Très-Saint-Sacrement burns a little more than Sainte-Clotilde, 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 Sainte-Clotilde faces
What to do about the hazards Sainte-Clotilde 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?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
- Is earthquake cover included?
What this data can and can’t tell you
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Sainte-Clotilde’s included.
- 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-Clotilde.
- 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-Clotilde.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Sainte-Clotilde takes its 2007 health region’s share.
Questions about flooding and hazards in Sainte-Clotilde
Does Sainte-Clotilde flood?
Nothing is listed for Sainte-Clotilde on the national inventory (0); local maps may still exist with the municipality.
Is radon a problem in Sainte-Clotilde?
In Health Canada’s survey, 8.2% of 110 homes tested in Sainte-Clotilde’s area were above 200 Bq/m³, though only a test tells you about one house.
How big is the earthquake risk in Sainte-Clotilde?
In NRCan’s seismic model, Sainte-Clotilde’s buildings lose $0.20 per $1,000 of value in an average year.
How is Sainte-Clotilde’s Hazard risk Grade worked out?
Sainte-Clotilde grades C− for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is Sainte-Clotilde at risk of wildfire?
Less than most of Canada: 0% of the land within 25 km of Sainte-Clotilde has burned since 1986, the last in 2025, a low band that leaves Risk alone.
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).