Photo: Gordalmighty · CC BY-SA 3.0Danville is on Canada’s flood inventory: 1 listed, led by Gouvernement du Québec
Wildfire barely registers for Danville, at 0% of the land within 25 km since 1986 (0.000% a year). Seismic risk in Danville sits near the middle: $0.049 of expected damage per $1,000 of buildings a year, the typical town $0.030. In Health Canada’s survey, 7.3% of homes tested in Danville’s area exceeded 200 Bq/m³, close to the typical 6.6%. Danville grades B for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Danville’s hazards
Four national sources, each read for Danville: earthquakes, radon, past fires and flood studies.
What Danville faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Danville: B
Seismic risk and radon set Danville’s grade, wildfire can drag it down, and flood mapping stays out of it.
Its place: #81 of 507 in Quebec and #1,512 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. The radon share rests on 55 home tests in the survey area, so a few homes move it. Small fires and grass fires are largely missing from the national burned-area record.
Little of the land around Danville has burned: 0% within 5 km, 0% within 25 km since 1986
Past fire around Danville’s homes, from the national burned-area record, with the fuel within 5 km.
The yearly burn rate around Danville is 0.000%, low beside 0.000% for the typical Canadian town.
The 5 km ring around Danville’s homes is clear of burns since 1986, the nearest 11 km out.
26% of the land within 5 km of Danville is forest fuel, close to the 31% 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
Among the 513 towns in Quebec, Mistissini burns fastest (0.31% a year); Danville is with the 144 near 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.
Most of the country’s 2,610 towns are low-band (92%, against 7.5% above); around Danville, burning rounds to zero.
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.
Gouvernement du Québec has mapped flooding for Danville (1 study)
What Canada’s Flood Map Inventory lists for Danville: who studied flooding and where to see their maps.
For Danville the inventory points to Gouvernement du Québec’s 2005 study, whose map is the one to check.
| Study | By | Year | Status |
|---|---|---|---|
| Asbestos-Danville-Tingwick-St-Rémi-de-Tingwick | Gouvernement du Québec | 2005 | final |
Towns with a flood study on file
Danville is one of the 45% of towns in Quebec with a flood study on file, fewer than Canada’s 58%.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Listed, not scored: a flood study proves a map exists, not that Danville floods.
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.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
Earthquakes cost buildings in Danville $0.049 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
At $0.049 per $1,000, Danville’s earthquake risk is about the typical Canadian town’s ($0.030; 1.6 times).
Shaking damage a year per $1,000 of building value
Below the middle in Quebec: Danville’s $0.049 against a median of $0.14; La Pocatière has $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: 31% of its 2,611 towns expect more damage than Danville.
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).
Roads, pipes and bridges aren’t in Danville’s figure, nor landslides or tsunami: it is buildings and shaking.
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 Danville: 7.3% over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
At 7.3% over the guideline, the area around Danville is about level with the typical Canadian town’s 6.6%. Figures for radon tests are published for the Estrie health region as a whole, not for Danville alone.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The typical town in Quebec has 8.2% over 200 Bq/m³; Danville’s area has 7.3%, much the same.
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 Danville, 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.
One home in Danville can be high while next door is low; a three-month test settles it.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Danville
Alerts for Danville 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. |
Alert Ready carries evacuation orders for Danville to phones; CWFIS shows the day’s fire danger.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Danville’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 |
|---|---|---|---|---|
| Danville | Low | $0.049 | 7.3% | Yes |
| Val-des-Sources 7,303 · 4.9 km | Low | $0.044 | 7.3% | Yes |
| Kingsey Falls 2,072 · 9.6 km | Low | $0.076 | 0% | None listed |
| Tingwick 1,567 · 9.7 km | Low | $0.047 | 0% | Yes |
| Saint-Georges-de-Windsor 1,034 · 12 km | Low | $0.051 | 7.3% | None listed |
| Wotton 1,448 · 14 km | Low | $0.044 | 7.3% | None listed |
| Cleveland 1,624 · 16 km | Low | $0.041 | 7.3% | Yes |
The neighbour with the most fire is Val-des-Sources (low), still no more than Danville (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Danville faces
Practical steps for Danville’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.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Has it had a radon test?
- Check the address on the flood map.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Danville 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 Danville until then.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Danville’s homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
- Earthquakes are modelled. Shaking damage is modelled from the ground, the buildings and the odds of each quake, and published for whole subdivisions such as Danville’s.
Questions about flooding and hazards in Danville
How big is the earthquake risk in Danville?
In NRCan’s seismic model, Danville’s buildings lose $0.049 per $1,000 of value in an average year.
Is Danville at risk of wildfire?
Some, but Danville’s low band (0% of nearby land burned since 1986, latest 2022) is short of the level that counts.
How is Danville’s Hazard risk Grade worked out?
Danville grades B for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Does Danville flood?
A flood study covers Danville on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
Is radon a problem in Danville?
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 Danville.
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).