Photo: Hayden Soloviev · CC BY 4.0Hazards in East Angus: wildfire low, radon over the guideline in 7.3% of tested homes
For East Angus, wildfire history is close to nil: 0% of nearby land since 1986, 0.001% a year. Earthquake risk in East Angus is ordinary: NRCan’s model puts building losses at $0.045 a year per $1,000 of value, close to the typical town’s $0.030. Hazard risk gives East Angus a grade of B, from earthquakes and radon alone.
What stands out about East Angus’s hazards
For East Angus, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What East Angus faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in East Angus: B
For East Angus, Risk will be the average of earthquakes and radon, with wildfire added only if it makes the average worse.
Its place: #70 of 507 in Quebec and #1,462 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Only 55 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 East Angus: 0% within 5 km, 0% within 25 km
Past fire around East Angus’ homes, from the national burned-area record, with the fuel within 5 km.
The yearly burn rate around East Angus is 0.001%, low beside 0.000% for the typical Canadian town.
The 5 km ring around East Angus’ homes is clear of burns since 1986, the nearest 17 km out.
There is forest near East Angus’ homes (37% within 5 km) and more of it further out (43% 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 Quebec · highest of 513
East Angus sits mid-table in Quebec: 136th of 513 towns, at 0.001% a year, well 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.
Beside 2,610 Canadian towns, East Angus reads low, with 92% of them; only 7.5% rank 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 East Angus
What Canada’s Flood Map Inventory lists for East Angus: who studied flooding and where to see their maps.
An empty entry for East Angus on the inventory isn’t proof of safety; ask locally for flood maps.
Towns with a flood study on file
Only 45% of towns in Quebec have a flood study, short of Canada’s 58%, and East Angus is not among them.
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 East Angus 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.”
Expected shaking damage in East Angus: $0.045 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
With $0.045 of shaking damage a year per $1,000, East Angus is about even with the typical $0.030 (1.5 times).
Shaking damage a year per $1,000 of building value
The typical town in Quebec expects $0.14 a year in shaking damage; East Angus expects less, $0.045, and La Pocatière the most, $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.
More earthquake risk than most: only 32% of Canada’s 2,611 towns are above East 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).
What a quake does after the shaking, fire, landslides, tsunami, falls outside NRCan’s figure for East Angus.
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 East Angus: 7.3% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · The radon tests numbers here cover the Estrie health region
At 7.3% over the guideline, the area around East Angus is about level with the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Around East Angus, 7.3% of tests topped the guideline, about the same as the typical town in Quebec (8.2%).
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 East Angus, 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.
Health Canada advises testing every home, East Angus’ included, whatever the area’s figure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in East Angus
Alerts for East Angus 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 East Angus 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 East Angus
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| East Angus | Low | $0.045 | 7.3% | None listed |
| Westbury 1,207 · 2.2 km | Low | $0.051 | 7.3% | Yes |
| Cookshire-Eaton 5,491 · 10 km | Low | $0.040 | 7.3% | Yes |
| Ascot Corner 3,725 · 11 km | Low | $0.044 | 7.3% | Yes |
| Stoke 3,272 · 13 km | Low | $0.039 | 7.3% | Yes |
| Dudswell 1,850 · 15 km | Low | $0.044 | 7.3% | Yes |
| Bury 1,243 · 16 km | Low | $0.040 | 7.3% | Yes |
East Angus’ low band tops its neighbours; Westbury is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what East Angus faces
Practical steps for East Angus’ 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?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
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 East Angus’ census subdivision (a neighbourhood shows its city’s).
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for East Angus without grading them.
- 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 East Angus until then.
- Wildfire counts one way. For East Angus, 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 East Angus
Is East Angus at risk of wildfire?
Some, but East Angus’ low band (0% of nearby land burned since 1986, latest 2015) is short of the level that counts.
Is radon a problem in East Angus?
The area’s survey found 7.3% of 55 tested homes above Health Canada’s guideline, so a three-month test is worth doing in East Angus.
How is East Angus’s Hazard risk Grade worked out?
East Angus grades B for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Does East Angus flood?
The inventory has 0 studies for East Angus, and an empty list isn’t a clean bill: the municipality holds any flood maps.
How big is the earthquake risk in East Angus?
NRCan’s model expects shaking to cost buildings in East Angus $0.045 a year for every $1,000 of their value, on average over many years.
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).