Photo: P199 · CC BY-SA 3.0Hazard risk in Angus is lower than in 95% of Canadian towns
No wildfire is mapped within 25 km of Angus’ homes since 1986 (0% of the land, 0.001% a year). For earthquakes Angus is middling, $0.018 a year per $1,000 against $0.030 for the typical town. In Health Canada’s survey, just 0.9% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Angus grades A+ for hazard risk, with wildfire counted against it.
What stands out about Angus’s hazards
For Angus, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Angus faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Angus grades A+ for hazard risk
The grade weighs Angus’ seismic risk and radon equally, and wildfire is one-sided: a high band counts against a town, a low one earns nothing.
Its place: #18 of 866 in Ontario and #251 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 Angus: 0% within 5 km, 0% within 25 km
Fires mapped since 1986 around where Angus’ residents live, and the fuel next to their homes.
Around Angus fire takes 0.001% of the land in a typical year, the typical Canadian town 0.000%, which is low.
Angus’ homes have had no fire within 5 km since 1986; the closest was 18 km away.
17% of the land within 5 km of Angus is forest fuel, close to the 12% 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
At 0.001% a year, Angus is near the top in Ontario: 83rd of 871, behind Sioux Lookout (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.
Angus 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.
The flood map inventory lists nothing for Angus
Flood studies whose area touches Angus, from NRCan’s inventory, each linked to its owner.
Nationally, Angus has no listed flood study; the municipality is the place to ask.
Towns with a flood study on file
Flood maps are common in Ontario, 69% of towns against 58% nationally, but none in the inventory touches Angus.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
The grade leaves flood out, since a study area says nothing about how many of Angus’ homes are at risk.
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.”
Earthquakes cost buildings in Angus $0.018 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.
0.6 times the typical $0.030: Angus’ $0.018 is ordinary.
Shaking damage a year per $1,000 of building value
At $0.018, Angus 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.
68% of Canada’s 2,611 towns expect more shaking damage than Angus.
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 Angus 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).
Little radon around Angus: 0.9% of area homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Area-wide: radon tests, counted over the Simcoe Muskoka District Health Unit
Angus’ area, at 0.9%, 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
Fewer homes top the guideline around Angus (0.9%) than in the typical town in Ontario (4%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Radon rarely tops the guideline around Angus, as for 37% of Canada’s 2,611 towns; 63% see more.
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 Angus, 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 Angus
Environment and Climate Change Canada issues the weather alerts for Angus; 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. |
Smoke and fire warnings for Angus come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Angus
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Angus | Low | $0.018 | 0.9% | None listed |
| Barrie 174,469 · 15 km | Low | $0.015 | 0.9% | Yes |
| Adjala-Tosorontio 11,948 · 19 km | Low | $0.017 | 0.9% | Yes |
| Springwater 24,144 · 19 km | Low | $0.017 | 0.9% | Yes |
Fire is no heavier anywhere nearby than around Angus (low), with Barrie next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Angus faces
What to do about the hazards Angus 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.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Has it had a radon test?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
What this data can and can’t tell you
- 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 Angus.
- 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 Angus until then.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Angus without grading them.
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Angus’ included.
Questions about flooding and hazards in Angus
Does Angus flood?
With 0 studies on the inventory, Angus’ flood risk is unmapped nationally; check with the municipality before buying.
How big is the earthquake risk in Angus?
About $0.018 a year per $1,000 of building value, NRCan’s long-run expectation for Angus.
Is radon a problem in Angus?
Around Angus, 109 survey homes were tested and 0.9% came in over 200 Bq/m³, a guide to the area, not to any one home.
How is Angus’s Hazard risk Grade worked out?
Angus’ Hazard risk grade is A+, built on earthquakes and radon with a one-sided wildfire input.
Is Angus at risk of wildfire?
Fire has reached 0% of the land around Angus since 1986 (last in 2006); at low, it neither helps nor hurts the grade.
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).