Photo: Pittaway Studio · Public domainCentrepointe - Briargreen’s hazards at a glance: a low wildfire record and 6.2% of area homes over the radon guideline
Around Centrepointe - Briargreen, wildfire is practically absent from the record: 0% within 25 km since 1986, 0.000% a year. Shaking is a bigger worry than in most places, at $0.15 a year per $1,000 of building value ($0.030 typical). Centrepointe - Briargreen grades C+ for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Centrepointe - Briargreen’s hazards
For Centrepointe - Briargreen, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Centrepointe - Briargreen faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Centrepointe - Briargreen: C+
Two inputs always count for Centrepointe - Briargreen, earthquakes and radon; the third, wildfire, counts only against a town.
Its place: #703 of 866 in Ontario and #1,894 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Only 64 homes were tested in the survey area, so the radon share is rough. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Few fires near Centrepointe - Briargreen: 0% within 5 km, 0% within 25 km
Past fire around Centrepointe - Briargreen’s homes, from the national burned-area record, with the fuel within 5 km.
Forty years of fire maps put Centrepointe - Briargreen at 0.000% a year, low next to the typical Canadian town’s 0.000%.
Since 1986 the nearest fire to Centrepointe - Briargreen’s homes came within 18 km, never inside 5 km.
The forest starts beyond town: 3% of the land within 5 km of Centrepointe - Briargreen’s homes is forest fuel, against 9.1% 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 Ontario · highest of 871
Sioux Lookout has the highest burn rate in Ontario, 0.16% a year; around Centrepointe - Briargreen, as around 638 of the 871 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.
The low band holds 92% of Canada’s 2,610 towns, and Centrepointe - Briargreen sits at its very bottom; only 7.5% are 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 Centrepointe - Briargreen
What Canada’s Flood Map Inventory lists for Centrepointe - Briargreen: who studied flooding and where to see their maps.
There is no study for Centrepointe - Briargreen on the national flood inventory, which is far from complete.
Towns with a flood study on file
Missing from a well-mapped province: Centrepointe - Briargreen has no study, where 69% of towns in Ontario have one against 58% nationally.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood mapping is shown for Centrepointe - Briargreen to be opened and checked, never turned into a grade.
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 Centrepointe - Briargreen: $0.15 per $1,000 of buildings a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
At $0.15 per $1,000, Centrepointe - Briargreen carries roughly 5 times the typical Canadian town’s earthquake risk ($0.030).
For earthquake risk, the only official count covers all of the city of Ottawa, Centrepointe - Briargreen included.
Shaking damage a year per $1,000 of building value
The typical town in Ontario expects $0.043 a year; Centrepointe - Briargreen expects $0.15, and Alexandria $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.
15% of Canada’s 2,611 towns expect more shaking damage than Centrepointe - Briargreen, 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 Centrepointe - Briargreen 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).
Some radon around Centrepointe - Briargreen: 6.2% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Shared with the rest of the City of Ottawa Health Unit: radon tests
Near the middle for radon: Centrepointe - Briargreen’s area 6.2%, the typical Canadian town 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Centrepointe - Briargreen’s area, at 6.2%, is above the median in Ontario (4%).
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 Centrepointe - Briargreen 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.
Health Canada advises testing every home, Centrepointe - Briargreen’s included, whatever the area’s figure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Centrepointe - Briargreen
Alerts for Centrepointe - Briargreen 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 Centrepointe - Briargreen 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 Centrepointe - Briargreen
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Centrepointe - Briargreen | Low | $0.15 | 6.2% | None listed |
| Craig Henry - Manordale 8,758 · 0.9 km | Low | $0.15 | 6.2% | None listed |
| Iris 5,733 · 1.3 km | Low | $0.15 | 6.2% | None listed |
| Trend-Arlington 3,844 · 1.5 km | Low | $0.15 | 6.2% | None listed |
| Qualicum - Redwood 4,761 · 1.7 km | Low | $0.15 | 6.2% | Yes |
| Leslie Park - Bruce Farm 3,056 · 2.0 km | Low | $0.15 | 6.2% | None listed |
| City View 6,468 · 2.3 km | Low | $0.15 | 6.2% | None listed |
Iris burns a little more than Centrepointe - Briargreen, 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 Centrepointe - Briargreen faces
What to do about the hazards Centrepointe - Briargreen 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
- 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 Centrepointe - Briargreen floods.
- Wildfire counts one way. For Centrepointe - Briargreen, 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 Centrepointe - Briargreen’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 Centrepointe - Briargreen sits in.
Questions about flooding and hazards in Centrepointe - Briargreen
How big is the earthquake risk in Centrepointe - Briargreen?
NRCan’s model expects shaking to cost buildings in Centrepointe - Briargreen $0.15 a year for every $1,000 of their value, on average over many years.
Is Centrepointe - Briargreen at risk of wildfire?
Less than most of Canada: 0% of the land within 25 km of Centrepointe - Briargreen has burned since 1986, the last in 2014, a low band that leaves Risk alone.
How is Centrepointe - Briargreen’s Hazard risk Grade worked out?
Centrepointe - Briargreen’s Hazard risk grade is C+, built on earthquakes and radon with a one-sided wildfire input.
Is radon a problem in Centrepointe - Briargreen?
In Health Canada’s survey, 6.2% of 64 homes tested in Centrepointe - Briargreen’s area were above 200 Bq/m³, though only a test tells you about one house.
Does Centrepointe - Briargreen flood?
Nothing is listed for Centrepointe - Briargreen on the national inventory (0); local maps may still exist with the municipality.
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).