Photo: JFVoll · CC BY-SA 4.0Vanier is on Canada’s flood inventory: 1 listed, led by Grand River Conservation Authority
Wildfire isn’t Vanier’s worry: 0% of the land within 25 km burned since 1986 (0.000% a year). Shaking is about as much of a worry in Vanier as in most places, at $0.022 a year per $1,000 of building value ($0.030 typical). Radon is lower than usual: 4% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Vanier grades A− for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Vanier’s hazards
Four national sources, each read for Vanier: earthquakes, radon, past fires and flood studies.
What Vanier faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Vanier grades A− for hazard risk
Earthquake risk and radon make Vanier’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #237 of 866 in Ontario and #594 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Small fires and grass fires are largely missing from the national burned-area record.
Few fires near Vanier: 0% within 5 km, 0% within 25 km
Fires mapped since 1986 around where Vanier’s residents live, and the fuel next to their homes.
Low by Canadian standards: 0.000% of the land a year around Vanier, 0.000% for the typical Canadian town.
Forest makes up 1.9% of the land within 5 km of Vanier and 3.8% 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 Ontario · highest of 871
Near-zero burning puts Vanier with 638 of the 871 towns in Ontario, far below Sioux Lookout at 0.16%.
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.
Only 7.5% of Canada’s 2,610 towns are above the low band, which holds 92%; Vanier, at a rounded zero, is far from them.
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.
A flood study covers Vanier, from Grand River Conservation Authority: 1 on the inventory
Flood studies whose area touches Vanier, from NRCan’s inventory, each linked to its owner.
Grand River Conservation Authority studied flooding in an area that includes Vanier (2018); open its map to see which streets lie in a flood zone.
| Study | By | Year | Status |
|---|---|---|---|
| Grand River Regulatory Floodplain | Grand River Conservation Authority | 2018 | final |
Towns with a flood study on file
Flood maps are common in Ontario: 69% of towns have one, against 58% nationally, and Vanier is among them.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Listed, not scored: a flood study proves a map exists, not that Vanier 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.
Expected shaking damage in Vanier: $0.022 a year per $1,000
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
Nothing unusual about Vanier’s ground: $0.022 against a typical $0.030, 0.7 times.
Vanier doesn’t get its own earthquake risk figures; the ones here come from the city of Kitchener.
Shaking damage a year per $1,000 of building value
At $0.022, Vanier is below the typical town in Ontario ($0.043); Alexandria is highest at $0.21.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Around half of Canada’s 2,611 towns expect more shaking damage than Vanier (61%).
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 Vanier’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).
4% of homes tested around Vanier are over the radon guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
At 4% over the guideline, the area around Vanier is under the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon around Vanier is ordinary for towns in Ontario: 4%, beside a median of 4%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Few tests over the guideline: Vanier shares the bottom band with 37% of Canada’s 2,611 towns, below the other 63%.
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.
Basements, soil and how a house is sealed decide its radon, so in Vanier only a test can say.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Radon tests: one figure for all of the Waterloo Health Unit
Weather and fire alerts for Vanier
Alerts for Vanier 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. |
Alert Ready carries evacuation orders for Vanier to phones; CWFIS shows the day’s fire danger.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Vanier
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Vanier | Low | $0.022 | 4% | Yes |
| Trillium Industrial Park 3,420 · 1.3 km | Low | $0.022 | 4% | Yes |
| Centreville Chicopee 10,291 · 1.8 km | Low | $0.022 | 4% | Yes |
| Stanley Park 8,721 · 1.9 km | Low | $0.022 | 4% | Yes |
| Country Hills 4,561 · 2.3 km | Low | $0.022 | 4% | Yes |
| Alpine 3,055 · 2.4 km | Low | $0.022 | 4% | Yes |
| Idlewood 5,005 · 2.8 km | Low | $0.022 | 4% | Yes |
Trillium Industrial Park (low) has the heaviest fire record of Vanier’s neighbours, and Vanier (low) matches or beats it.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Vanier faces
Practical steps for Vanier’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
- 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 Vanier 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 Vanier floods.
- Earthquakes are modelled. Shaking damage is modelled from the ground, the buildings and the odds of each quake, and published for whole subdivisions such as Vanier’s.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Vanier’s homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
Questions about flooding and hazards in Vanier
How big is the earthquake risk in Vanier?
About $0.022 a year per $1,000 of building value, NRCan’s long-run expectation for Vanier.
Is Vanier at risk of wildfire?
The burned-area record shows next to nothing around Vanier (0% within 25 km since 1986), so its band is low.
How is Vanier’s Hazard risk Grade worked out?
Hazard risk gives Vanier A−, weighing earthquakes and radon and counting wildfire only against it.
Is radon a problem in Vanier?
4% of the 101 homes Health Canada tested around Vanier topped the guideline; your own house needs its own test.
Does Vanier flood?
Vanier’s area has been studied for flooding, and the owner’s map shows which streets lie in a zone; the grade leaves flood out.
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).