Photo: Picturelover · CC BY-SA 4.0Saint-Calixte faces few natural hazards: little fire nearby, low seismic risk, radon over the guideline in 3.9% of tested homes
Wildfire is rare near Saint-Calixte: 0% of the land within 25 km has burned since 1986, a burn rate of 0.001% a year. Seismic risk runs high: $0.091 of expected damage per $1,000 of buildings a year, the typical town $0.030. Hazard risk gives Saint-Calixte a grade of B; its wildfire band pulls it down.
What stands out about Saint-Calixte’s hazards
Four national sources, each read for Saint-Calixte: earthquakes, radon, past fires and flood studies.
What Saint-Calixte 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-Calixte: B
Earthquake risk and radon make Saint-Calixte’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #61 of 507 in Quebec and #1,431 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Only 77 homes were tested in the survey area, so the radon share is rough. Small fires and grass fires are largely missing from the national burned-area record.
Little of the land around Saint-Calixte has burned: 0% within 5 km, 0% within 25 km since 1986
Past fire around Saint-Calixte’s homes, from the national burned-area record, with the fuel within 5 km.
Low: the land around Saint-Calixte burns at 0.001% a year, where the typical Canadian town sees 0.000%.
Near or far, forest fuel covers a similar share around Saint-Calixte: 25% within 5 km and 26% 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
In the upper half in Quebec but far from Mistissini (0.31%): Saint-Calixte ranks 136th of 513, at 0.001% a year.
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, Saint-Calixte 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.
No flood study is listed for Saint-Calixte
What Canada’s Flood Map Inventory lists for Saint-Calixte: who studied flooding and where to see their maps.
An empty entry for Saint-Calixte on the inventory isn’t proof of safety; ask locally for flood maps.
Towns with a flood study on file
Mapping in Quebec reaches 45% of towns, below the 58% across Canada, and not Saint-Calixte.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood is shown here, never graded: a study says where a map exists, not how many of Saint-Calixte’s homes stand in a flood zone.
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-Calixte: $0.091 per $1,000 of buildings a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Saint-Calixte’s $0.091 is about 3 times the typical town’s $0.030: it sits in one of Canada’s more active seismic zones.
Shaking damage a year per $1,000 of building value
Below the middle in Quebec: Saint-Calixte’s $0.091 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: 27% of its 2,611 towns expect more damage than Saint-Calixte.
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-Calixte’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).
Little radon around Saint-Calixte: 3.9% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Radon tests for the Lanaudiere health region
Saint-Calixte’s area, at 3.9%, 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
Radon runs lower around Saint-Calixte than in most towns in Quebec: 3.9% against 8.2%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Under 5% puts Saint-Calixte with 37% of Canada’s 2,611 towns; 63% have more high tests.
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.
Basements, soil and how a house is sealed decide its radon, so in Saint-Calixte only a test can say.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Saint-Calixte
Environment and Climate Change Canada issues the weather alerts for Saint-Calixte; 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-Calixte, 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)
How Saint-Calixte’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 |
|---|---|---|---|---|
| Saint-Calixte | Low | $0.091 | 3.9% | None listed |
| Sainte-Julienne 12,990 · 12 km | Low | $0.11 | 3.9% | None listed |
| Saint-Hippolyte 12,550 · 13 km | Low | $0.085 | 10% | None listed |
| Saint-Lin--Laurentides 26,673 · 14 km | Low | $0.16 | 3.9% | None listed |
| Chertsey 5,678 · 15 km | Low | $0.073 | 3.9% | None listed |
| Saint-Esprit 2,313 · 15 km | Low | $0.17 | 3.9% | Yes |
| Sainte-Sophie 19,467 · 15 km | Low | $0.12 | 10% | None listed |
The fire record around Saint-Hippolyte is a touch heavier than Saint-Calixte’s, but the band is the same: low (here low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Saint-Calixte faces
Practical steps for Saint-Calixte’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?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Saint-Calixte’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 Saint-Calixte’s.
- 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-Calixte.
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Saint-Calixte is its health region’s, the survey’s design unit.
Questions about flooding and hazards in Saint-Calixte
How is Saint-Calixte’s Hazard risk Grade worked out?
Saint-Calixte’s Hazard risk grade is B, built on earthquakes and radon with a one-sided wildfire input.
Is Saint-Calixte at risk of wildfire?
Not much by Canadian standards: Saint-Calixte’s band is low, with 0% of the land within 25 km burned since 1986 (last in 2025), so wildfire doesn’t change its grade.
Does Saint-Calixte flood?
No study on Canada’s Flood Map Inventory covers Saint-Calixte (0), which doesn’t mean it has never been mapped, so ask the municipality.
How big is the earthquake risk in Saint-Calixte?
In NRCan’s seismic model, Saint-Calixte’s buildings lose $0.091 per $1,000 of value in an average year.
Is radon a problem in Saint-Calixte?
3.9% of the 77 homes Health Canada tested around Saint-Calixte topped the guideline; your own house needs its own test.
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).