Photo: Jeangagnon · CC BY-SA 3.0Wildfire low, radon 8.2%: how Fatima stands on hazards
Little of the land around Fatima has burned: 0.1% within 25 km since 1986, or 0.002% a year. Shaking is a bigger worry than in most places, at $0.23 a year per $1,000 of building value ($0.030 typical). Hazard risk gives Fatima a grade of C−, from earthquakes and radon alone.
What stands out about Fatima’s hazards
For Fatima, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Fatima faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Fatima grades C− for hazard risk
The grade weighs Fatima’s seismic risk and radon equally, and wildfire is one-sided: a high band counts against a town, a low one earns nothing.
Its place: #383 of 507 in Quebec and #2,362 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.
Few fires near Fatima: 0% within 5 km, 0.1% within 25 km
Past fire around Fatima’s homes, from the national burned-area record, with the fuel within 5 km.
Forty years of fire maps put Fatima at 0.002% a year, low next to the typical Canadian town’s 0.000%.
The 5 km ring around Fatima’s homes is clear of burns since 1986, the nearest 13 km out.
Forest makes up 0.4% of the land within 5 km of Fatima and 1% within 25 km, little for a forest fire to run through.
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 0.002% a year, Fatima is near the top in Quebec: 35th of 513, 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.
Low, like 92% of the country’s 2,610 towns: the land around Fatima burns, but slower than in the 7.5% above it.
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.
The flood map inventory lists nothing for Fatima
What Canada’s Flood Map Inventory lists for Fatima: who studied flooding and where to see their maps.
There is no study for Fatima on the national flood inventory, which is far from complete.
Towns with a flood study on file
Only 45% of towns in Quebec have a flood study, short of Canada’s 58%, and Fatima is not among them.
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 Fatima.
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.”
High seismic risk in Fatima: $0.23 per $1,000 of buildings a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
The typical town loses $0.030 a year to shaking; Fatima loses $0.23, 7.6 times as much.
Shaking damage a year per $1,000 of building value
Above the middle in Quebec: Fatima’s $0.23 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.
Fatima is in the top tenth of Canada’s 2,611 towns for earthquake risk; 6.4% rank higher.
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 Fatima 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). · Area behind the earthquake risk figures: the city of Longueuil
Radon about average around Fatima: 8.2% over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Around Fatima, 8.2% of tested homes topped the guideline, near the typical Canadian town’s 6.6%. Fatima shares its radon tests numbers with the rest of the Monteregie health region.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon around Fatima is ordinary for towns in Quebec: 8.2%, beside a median of 8.2%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
A middling share of high tests puts Fatima with 37% of Canada’s 2,611 towns, below 26% of them.
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.
Radon varies from house to house in Fatima, so the survey is a reason to test, not a result for yours.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Fatima
Environment and Climate Change Canada issues the weather alerts for Fatima; 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. |
In fire season, check CWFIS for danger and active fires around Fatima, and listen to local authorities for orders.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Fatima
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Fatima | Low | $0.23 | 8.2% | None listed |
| Collectivité Nouvelle 3,587 · 1.3 km | Low | $0.23 | 8.2% | None listed |
| Bellerive 4,393 · 2.6 km | Low | $0.23 | 8.2% | None listed |
| Guybourg 3,554 · 3.0 km | Low | $0.20 | 6.8% | None listed |
| Centre 6,627 · 3.2 km | Low | $0.23 | 8.2% | None listed |
| Carillon / Saint-Pie-X 5,457 · 3.4 km | Low | $0.23 | 8.2% | None listed |
| Vieux-Longueuil 15,414 · 3.8 km | Low | $0.23 | 8.2% | None listed |
Fatima’s low band tops its neighbours; Collectivité Nouvelle is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Fatima faces
What to do about the hazards Fatima 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. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Fatima’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 Fatima 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 Fatima floods.
- Wildfire counts one way. For Fatima, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
Questions about flooding and hazards in Fatima
Is radon a problem in Fatima?
Around Fatima, 110 survey homes were tested and 8.2% came in over 200 Bq/m³, a guide to the area, not to any one home.
Does Fatima flood?
With 0 studies on the inventory, Fatima’s flood risk is unmapped nationally; check with the municipality before buying.
How big is the earthquake risk in Fatima?
In NRCan’s seismic model, Fatima’s buildings lose $0.23 per $1,000 of value in an average year.
Is Fatima at risk of wildfire?
Fire has reached 0.1% of the land around Fatima since 1986 (last in 2024); at low, it neither helps nor hurts the grade.
How is Fatima’s Hazard risk Grade worked out?
Hazard risk gives Fatima C−, weighing earthquakes and radon and counting wildfire only against it.
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).