Photo: Lamusicographe · CC BY-SA 3.0A flood study covers Saint-Éphrem-de-Beauce: 1 on the national inventory, the newest from Gouvernement du Québec
The national fire record shows next to nothing around Saint-Éphrem-de-Beauce, 0% of the land within 25 km since 1986 (0.000% a year). For earthquakes Saint-Éphrem-de-Beauce is middling, $0.046 a year per $1,000 against $0.030 for the typical town. More homes than usual carry radon here, 13% over the guideline where the typical town has 6.6%. Saint-Éphrem-de-Beauce grades C− for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Saint-Éphrem-de-Beauce’s hazards
For Saint-Éphrem-de-Beauce, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Saint-Éphrem-de-Beauce 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-Éphrem-de-Beauce: C−
Earthquake risk and radon make Saint-Éphrem-de-Beauce’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #293 of 507 in Quebec and #2,254 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 Saint-Éphrem-de-Beauce: 0% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where Saint-Éphrem-de-Beauce’s residents live, and the fuel next to their homes.
The land within 25 km of Saint-Éphrem-de-Beauce burns at 0.000% a year on average, the low band; the typical Canadian town: 0.000%.
Since 1986 the nearest fire to Saint-Éphrem-de-Beauce’s homes came within 5.7 km, never inside 5 km.
Forest thickens with distance from Saint-Éphrem-de-Beauce: 44% of the land within 5 km, 55% 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
Mistissini has the highest burn rate in Quebec, 0.31% a year; around Saint-Éphrem-de-Beauce, 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.
Like most of Canada’s 2,610 towns (92%), Saint-Éphrem-de-Beauce is in the low band, with a burn rate of zero to three decimals; 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.
Saint-Éphrem-de-Beauce is on the flood map inventory: 1 study, by Gouvernement du Québec
Flood studies whose area touches Saint-Éphrem-de-Beauce, from NRCan’s inventory, each linked to its owner.
A 2006 study by Gouvernement du Québec covers Saint-Éphrem-de-Beauce, and its map, not the inventory, shows the zones.
| Study | By | Year | Status |
|---|---|---|---|
| St-Éphrem-de-Beauce | Gouvernement du Québec | 2006 | final |
Towns with a flood study on file
Its flood study sets Saint-Éphrem-de-Beauce 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 grade leaves flood out, since a study area says nothing about how many of Saint-Éphrem-de-Beauce’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.
Ordinary seismic risk in Saint-Éphrem-de-Beauce: $0.046 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.
With $0.046 of shaking damage a year per $1,000, Saint-Éphrem-de-Beauce is about even with the typical $0.030 (1.5 times).
Shaking damage a year per $1,000 of building value
Below the middle in Quebec: Saint-Éphrem-de-Beauce’s $0.046 against a median of $0.14; La Pocatière has $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 31% of Canada’s 2,611 towns are above Saint-Éphrem-de-Beauce.
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).
For Saint-Éphrem-de-Beauce the model prices shaking damage to buildings, nothing more.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Test for radon in Saint-Éphrem-de-Beauce: 13% of area homes were over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Source area for radon tests: the Chaudiere-Appalaches health region
More homes than usual test high around Saint-Éphrem-de-Beauce: 13% against 6.6% for the typical Canadian town.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Around Saint-Éphrem-de-Beauce, 13% of tests were over 200 Bq/m³ and 0.6% 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.
The 10–20% band holds 22% of Canada’s 2,611 towns, Saint-Éphrem-de-Beauce among them; 4.6% rank above.
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 low area share in Saint-Éphrem-de-Beauce doesn’t clear a house, nor does a high one condemn it: test.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Saint-Éphrem-de-Beauce
Environment and Climate Change Canada issues the weather alerts for Saint-Éphrem-de-Beauce; 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 Saint-Éphrem-de-Beauce 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 Saint-Éphrem-de-Beauce’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Saint-Éphrem-de-Beauce | Low | $0.046 | 13% | Yes |
| La Guadeloupe 1,927 · 9.6 km | Low | $0.043 | 13% | None listed |
| Saint-Victor 2,344 · 10 km | Low | $0.043 | 13% | None listed |
| Adstock 3,203 · 12 km | Low | $0.045 | 13% | None listed |
| Saint-Benoît-Labre 1,655 · 14 km | Low | $0.052 | 13% | None listed |
| Saint-Honoré-de-Shenley 1,610 · 14 km | Low | $0.045 | 13% | None listed |
Saint-Éphrem-de-Beauce’s low band tops its neighbours; La Guadeloupe is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Saint-Éphrem-de-Beauce faces
Practical steps for Saint-Éphrem-de-Beauce’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.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Has it had a radon test?
- Check the address on the flood map.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Wildfire counts one way. For Saint-Éphrem-de-Beauce, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Saint-Éphrem-de-Beauce’s census subdivision (a neighbourhood shows its city’s).
- Radon is a survey. The radon share comes from about 14,000 long-term home tests in 2009–2011, pooled for now by the 2007 health region Saint-Éphrem-de-Beauce sits in.
- Flood studies aren’t flood zones. A study’s area can be a whole watershed or province, so being on the inventory says a map exists, not that a home in Saint-Éphrem-de-Beauce floods.
Questions about flooding and hazards in Saint-Éphrem-de-Beauce
Is Saint-Éphrem-de-Beauce at risk of wildfire?
Not much by Canadian standards: Saint-Éphrem-de-Beauce’s band is low, with 0% of the land within 25 km burned since 1986 (last in 2016), so wildfire doesn’t change its grade.
How big is the earthquake risk in Saint-Éphrem-de-Beauce?
Expected earthquake damage in Saint-Éphrem-de-Beauce comes to $0.046 a year for each $1,000 that buildings are worth.
Does Saint-Éphrem-de-Beauce flood?
Saint-Éphrem-de-Beauce’s area has been studied for flooding, and the owner’s map shows which streets lie in a zone; the grade leaves flood out.
How is Saint-Éphrem-de-Beauce’s Hazard risk Grade worked out?
Hazard risk gives Saint-Éphrem-de-Beauce C−, weighing earthquakes and radon and counting wildfire only against it.
Is radon a problem in Saint-Éphrem-de-Beauce?
13% of the 175 homes Health Canada tested around Saint-Éphrem-de-Beauce topped the guideline; your own house needs its own test.
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).