Photo: P199 · CC BY-SA 3.0Admaston/Bromley’s hazards at a glance: a low wildfire record and 8% of area homes over the radon guideline
Fire has left almost no mark near Admaston/Bromley: 0% of the land within 25 km since 1986, 0.001% a year. Seismic risk runs high: $0.10 of expected damage per $1,000 of buildings a year, the typical town $0.030. Admaston/Bromley grades C+ for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Admaston/Bromley’s hazards
For Admaston/Bromley, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Admaston/Bromley faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Admaston/Bromley: C+
Earthquake risk and radon make Admaston/Bromley’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
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. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Wildfire is rare near Admaston/Bromley: 0% of the land within 25 km burned since 1986, 0% within 5 km
Past fire around Admaston/Bromley’s homes, from the national burned-area record, with the fuel within 5 km.
The yearly burn rate around Admaston/Bromley is 0.001%, low beside 0.000% for the typical Canadian town.
No fire has burned within 5 km of Admaston/Bromley’s homes since 1986; the nearest burn is 22 km away.
Forest thickens with distance from Admaston/Bromley: 21% of the land within 5 km, 34% 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
Admaston/Bromley ranks 83rd of the 871 towns in Ontario for burn rate, at 0.001% a year; Sioux Lookout leads with 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.
7.5% of Canada’s 2,610 towns burn fast enough to rank moderate or above; Admaston/Bromley stays low, with 92%.
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 Admaston/Bromley
What Canada’s Flood Map Inventory lists for Admaston/Bromley: who studied flooding and where to see their maps.
Nationally, Admaston/Bromley has no listed flood study; the municipality is the place to ask.
Towns with a flood study on file
Missing from a well-mapped province: Admaston/Bromley 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.
Nothing here counts toward Risk; the studies are pointers to the maps their owners keep for Admaston/Bromley.
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.”
Shaking is Admaston/Bromley’s costliest hazard: $0.10 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Roughly 3.5 times the typical $0.030: Admaston/Bromley’s $0.10 marks real seismic exposure.
Shaking damage a year per $1,000 of building value
Admaston/Bromley’s $0.10 tops the median in Ontario, $0.043, though Alexandria reaches $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.
In the upper part of Canada’s range: 25% of its 2,611 towns expect more damage than Admaston/Bromley.
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 Admaston/Bromley 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).
Some radon around Admaston/Bromley: 8% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Area-wide: radon tests, counted over the Renfrew County and District Health Unit
Around Admaston/Bromley, 8% of tested homes topped the guideline, near the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon runs higher around Admaston/Bromley than in most towns in Ontario: 8% over the guideline (4% is typical), 1% over 600.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Radon tops the guideline in a modest share of homes around Admaston/Bromley, a band holding 37% of Canada’s 2,611 towns; 26% 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.
Whatever Admaston/Bromley’s area share, the reading that matters is your own home’s, over a winter.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Admaston/Bromley
Environment and Climate Change Canada issues the weather alerts for Admaston/Bromley; 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 Admaston/Bromley, and listen to local authorities for orders.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Admaston/Bromley’s neighbours compare on hazards
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Admaston/Bromley | Low | $0.10 | 8% | None listed |
| Renfrew 8,721 · 12 km | Low | $0.10 | 8% | None listed |
Admaston/Bromley’s low band tops its neighbours; Renfrew is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Admaston/Bromley faces
Practical steps for Admaston/Bromley’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?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
- Is earthquake cover included?
What this data can and can’t tell you
- Radon is a survey. Radon figures pool the survey’s home tests by area: postal areas once their boundaries arrive, the 2007 health region around Admaston/Bromley until then.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Admaston/Bromley without grading them.
- Wildfire counts one way. Burned land within 25 km of where people live, averaged over 1986–2025 and checked for fuel near homes, is the measure; it looks back, not ahead, and only ever counts against Admaston/Bromley.
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Admaston/Bromley’s included.
Questions about flooding and hazards in Admaston/Bromley
Does Admaston/Bromley flood?
The inventory has 0 studies for Admaston/Bromley, and an empty list isn’t a clean bill: the municipality holds any flood maps.
How is Admaston/Bromley’s Hazard risk Grade worked out?
Admaston/Bromley grades C+ for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is radon a problem in Admaston/Bromley?
The area’s survey found 8% of 100 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Admaston/Bromley.
How big is the earthquake risk in Admaston/Bromley?
In NRCan’s seismic model, Admaston/Bromley’s buildings lose $0.10 per $1,000 of value in an average year.
Is Admaston/Bromley at risk of wildfire?
Some, but Admaston/Bromley’s low band (0% of nearby land burned since 1986, latest 2013) is short of the level that counts.
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).