Photo: Jarmuz · CC BY-SA 4.0A flood study covers L'Épiphanie: 2 on the national inventory, the newest from Gouvernement du Québec
Wildfire is rare near L'Épiphanie: 0.1% of the land within 25 km has burned since 1986, a burn rate of 0.001% a year. Shaking is a bigger worry than in most places, at $0.19 a year per $1,000 of building value ($0.030 typical). In Health Canada’s survey, just 3.9% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). L'Épiphanie grades C+ for hazard risk; wildfire is low here, so it earns no credit.
What stands out about L'Épiphanie’s hazards
Four national sources, each read for L'Épiphanie: earthquakes, radon, past fires and flood studies.
What L'Épiphanie faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
L'Épiphanie grades C+ for hazard risk
For L'Épiphanie, Risk will be the average of earthquakes and radon, with wildfire added only if it makes the average worse.
Its place: #113 of 507 in Quebec and #1,818 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 77 home tests in the survey area, so a few homes move it. Small fires and grass fires are largely missing from the national burned-area record.
Few fires near L'Épiphanie: 0% within 5 km, 0.1% within 25 km
Fires mapped since 1986 around where L'Épiphanie’s residents live, and the fuel next to their homes.
Fire claims 0.001% of the land around L'Épiphanie each year, a low band, with the typical Canadian town at 0.000%.
The 5 km ring around L'Épiphanie’s homes is clear of burns since 1986, the nearest 5.4 km out.
Forest fuel is spread evenly around L'Épiphanie: 8.5% within 5 km, 6.7% 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%): L'Épiphanie 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.
L'Épiphanie is in the low band with 92% of Canada’s 2,610 towns; 7.5% sit in moderate or 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.
2 flood studies cover L'Épiphanie, the newest from Gouvernement du Québec
Flood studies whose area touches L'Épiphanie, from NRCan’s inventory, each linked to its owner.
2 studies on the inventory touch L'Épiphanie, the newest Gouvernement du Québec’s from 2006, and their areas can be large, so they say maps exist, not that the town floods.
| Study | By | Year | Status |
|---|---|---|---|
| Assomption | Gouvernement du Québec | 2006 | final |
| Charlemagne-Joliette | Gouvernement du Québec | 1981 | final |
Towns with a flood study on file
Mapping in Quebec reaches 45% of towns, L'Épiphanie among them, below the 58% across Canada.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
No single decade dominates: 2 studies for L'Épiphanie between the 1980s and the 2000s.
Study dates as the NRCan inventory lists them, one count per study touching L'Épiphanie.
Listed, not scored: a flood study proves a map exists, not that L'Épiphanie 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.
Earthquakes cost buildings in L'Épiphanie $0.19 per $1,000 a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
L'Épiphanie’s $0.19 is about 6.2 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 $0.19, L'Épiphanie is above the typical town in Quebec ($0.14); La Pocatière has the most 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.
13% of Canada’s 2,611 towns expect more shaking damage than L'Épiphanie, 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 model counts damage to L'Épiphanie’s buildings and their occupants from shaking only: not liquefaction, landslides, tsunami or fires after a quake.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Little radon around L'Épiphanie: 3.9% of area homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Shared with the rest of the Lanaudiere health region: radon tests
L'Épiphanie’s area, at 3.9%, is below the 6.6% of the typical Canadian town, though any one home can still be high.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The median in Quebec is 8.2% over 200 Bq/m³; around L'Épiphanie it is 3.9%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Under 5% puts L'Épiphanie with 37% of Canada’s 2,611 towns; 63% have more high tests.
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.
The survey sampled homes around L'Épiphanie; it can’t tell you your basement’s level.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for L'Épiphanie
Alerts for L'Épiphanie 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 L'Épiphanie 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 L'Épiphanie
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| L'Épiphanie | Low | $0.19 | 3.9% | Yes |
| L'Assomption 25,126 · 5.5 km | Low | $0.18 | 3.9% | Yes |
| Saint-Roch-de-l'Achigan 5,675 · 7.9 km | Low | $0.18 | 3.9% | None listed |
| Sainte-Marie-Salomé 1,296 · 8.1 km | Low | $0.18 | 3.9% | None listed |
| Saint-Sulpice 3,688 · 10 km | Low | $0.16 | 3.9% | Yes |
| Repentigny 91,290 · 10 km | Low | $0.20 | 3.9% | Yes |
| Saint-Jacques 4,830 · 13 km | Low | $0.16 | 3.9% | None listed |
The fire record around Saint-Sulpice is a touch heavier than L'Épiphanie’s, but the band is the same: low (here low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what L'Épiphanie faces
Practical steps for L'Épiphanie’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
- 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 L'Épiphanie.
- Wildfire counts one way. Wildfire is read from the national burned-area record around L'Épiphanie’s homes since 1986, a history of fire that may lower Risk but never raises it.
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for L'Épiphanie is its health region’s, the survey’s design unit.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; L'Épiphanie’s figure is its subdivision’s.
Questions about flooding and hazards in L'Épiphanie
Is radon a problem in L'Épiphanie?
3.9% of the 77 homes Health Canada tested around L'Épiphanie topped the guideline; your own house needs its own test.
How is L'Épiphanie’s Hazard risk Grade worked out?
L'Épiphanie’s Hazard risk grade is C+, built on earthquakes and radon with a one-sided wildfire input.
Does L'Épiphanie flood?
There is flood mapping for L'Épiphanie on the national inventory, each study linked to its owner’s map, none of them graded.
Is L'Épiphanie at risk of wildfire?
Not much by Canadian standards: L'Épiphanie’s band is low, with 0.1% of the land within 25 km burned since 1986 (last in 2025), so wildfire doesn’t change its grade.
How big is the earthquake risk in L'Épiphanie?
Expected earthquake damage in L'Épiphanie comes to $0.19 a year for each $1,000 that buildings are worth.
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).