Photo: Veillg1 · CC0Hazards in Saint-Dominique: wildfire low, radon over the guideline in 8.2% of tested homes
Around Saint-Dominique, wildfire is practically absent from the record: 0% within 25 km since 1986, 0.001% a year. Seismic risk runs high: $0.11 of expected damage per $1,000 of buildings a year, the typical town $0.030. Saint-Dominique grades C for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Saint-Dominique’s hazards
Four national sources, each read for Saint-Dominique: earthquakes, radon, past fires and flood studies.
What Saint-Dominique faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Saint-Dominique: C
Two inputs always count for Saint-Dominique, earthquakes and radon; the third, wildfire, counts only against a town.
Its place: #129 of 507 in Quebec and #2,059 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Small fires and grass fires are largely missing from the national burned-area record.
Little of the land around Saint-Dominique has burned: 0% within 5 km, 0% within 25 km since 1986
Past fire around Saint-Dominique’s homes, from the national burned-area record, with the fuel within 5 km.
In a typical year 0.001% of the land near Saint-Dominique burns; the typical Canadian town sees 0.000%, and both are low.
Saint-Dominique’s homes have had no fire within 5 km since 1986; the closest was 12 km away.
With 1.2% forest fuel within 5 km and 2% within 25 km, the land around Saint-Dominique gives a fire little to burn.
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
Saint-Dominique burns at 0.001% a year, 136th of 513 towns in Quebec; the leader, Mistissini, reaches 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.
Saint-Dominique 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.
No flood study is listed for Saint-Dominique
What Canada’s Flood Map Inventory lists for Saint-Dominique: who studied flooding and where to see their maps.
No flood study on the national inventory covers Saint-Dominique; ask the municipality, which is the authority for its flood maps.
Towns with a flood study on file
Mapping in Quebec reaches 45% of towns, below the 58% across Canada, and not Saint-Dominique.
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 Saint-Dominique.
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 Saint-Dominique: $0.11 per $1,000 of buildings a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
The typical town loses $0.030 a year to shaking; Saint-Dominique loses $0.11, 3.5 times as much.
Shaking damage a year per $1,000 of building value
Saint-Dominique’s $0.11 sits under the median in Quebec, $0.14, and well under La Pocatière’s $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.
In the upper part of Canada’s range: 25% of its 2,611 towns expect more damage than Saint-Dominique.
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 loss is to Saint-Dominique’s buildings alone, from ground shaking; infrastructure and secondary hazards are left out.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Radon about average around Saint-Dominique: 8.2% over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Measured across the Monteregie health region: radon tests
Saint-Dominique’s area, at 8.2%, is close to the 6.6% of the typical Canadian town.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The typical town in Quebec has 8.2% over 200 Bq/m³; Saint-Dominique’s area has 8.2%, much the same.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
26% of Canada’s 2,611 towns have more homes over 200 Bq/m³ than Saint-Dominique’s 5–10% band, which holds 37%.
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.
A survey sample isn’t a map: any home in Saint-Dominique can be high, and a three-month test is the only way to know.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Saint-Dominique
Environment and Climate Change Canada issues the weather alerts for Saint-Dominique; 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. |
For fires near Saint-Dominique, the national fire information system maps danger and active fires daily; local authorities give any evacuation order.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Saint-Dominique
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Saint-Dominique | Low | $0.11 | 8.2% | None listed |
| Saint-Pie 6,085 · 7.6 km | Low | $0.11 | 8.2% | Yes |
| Saint-Hyacinthe 60,874 · 10 km | Low | $0.15 | 8.2% | Yes |
| Sainte-Cécile-de-Milton 2,267 · 12 km | Low | $0.098 | 8.2% | None listed |
| Saint-Valérien-de-Milton 1,794 · 12 km | Low | $0.098 | 8.2% | Yes |
| Saint-Liboire 3,123 · 12 km | Low | $0.12 | 8.2% | None listed |
| Saint-Damase 2,390 · 13 km | Low | $0.12 | 8.2% | Yes |
Among its neighbours Saint-Dominique has the most fire on record (low); Saint-Pie follows (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Saint-Dominique faces
What to do about the hazards Saint-Dominique 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
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Saint-Dominique is its health region’s, the survey’s design unit.
- Flood studies aren’t flood zones. NRCan’s inventory says where flood mapping exists, not where water goes; the map’s owner is the authority for Saint-Dominique.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Saint-Dominique’s homes since 1986, a history of fire that may lower Risk but never raises it.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Saint-Dominique’s figure is its subdivision’s.
Questions about flooding and hazards in Saint-Dominique
Is radon a problem in Saint-Dominique?
Around Saint-Dominique, 110 survey homes were tested and 8.2% came in over 200 Bq/m³, a guide to the area, not to any one home.
Is Saint-Dominique at risk of wildfire?
Fire has reached 0% of the land around Saint-Dominique since 1986 (last in 2025); at low, it neither helps nor hurts the grade.
Does Saint-Dominique flood?
With 0 studies on the inventory, Saint-Dominique’s flood risk is unmapped nationally; check with the municipality before buying.
How big is the earthquake risk in Saint-Dominique?
NRCan’s model expects shaking to cost buildings in Saint-Dominique $0.11 a year for every $1,000 of their value, on average over many years.
How is Saint-Dominique’s Hazard risk Grade worked out?
Saint-Dominique’s Hazard risk grade is C, built on earthquakes and radon with a one-sided wildfire input.
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).