Photo: Judicieux · CC BY-SA 4.0Hazard risk in Saint-Lambert-de-Lauzon is higher than in 92% of Canadian towns
The burned-area map is nearly blank around Saint-Lambert-de-Lauzon, 0% within 25 km since 1986, 0.000% a year. Earthquakes add more: NRCan’s model puts building losses at $0.14 a year per $1,000 of value, against $0.030 for the typical town. More homes than usual carry radon here, 13% over the guideline where the typical town has 6.6%. Saint-Lambert-de-Lauzon grades D for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Saint-Lambert-de-Lauzon’s hazards
For Saint-Lambert-de-Lauzon, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Saint-Lambert-de-Lauzon 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-Lambert-de-Lauzon: D
Seismic risk and radon set Saint-Lambert-de-Lauzon’s grade, wildfire can drag it down, and flood mapping stays out of it.
Its place: #479 of 507 in Quebec and #2,489 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Little of the land around Saint-Lambert-de-Lauzon has burned: 0% within 5 km, 0% within 25 km since 1986
Past fire around Saint-Lambert-de-Lauzon’s homes, from the national burned-area record, with the fuel within 5 km.
Around Saint-Lambert-de-Lauzon fire takes 0.000% of the land in a typical year, the typical Canadian town 0.000%, which is low.
Fire has stayed at least 6.8 km from Saint-Lambert-de-Lauzon’s homes since 1986.
More forest grows near Saint-Lambert-de-Lauzon’s homes (32% within 5 km) than across 25 km (23%).
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
Fire has taken almost none of the land around Saint-Lambert-de-Lauzon, as for 144 of the 513 towns in Quebec; Mistissini tops the list at 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.
Most of the country’s 2,610 towns are low-band (92%, against 7.5% above); around Saint-Lambert-de-Lauzon, 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.
No flood study is listed for Saint-Lambert-de-Lauzon
What Canada’s Flood Map Inventory lists for Saint-Lambert-de-Lauzon: who studied flooding and where to see their maps.
The inventory has nothing for Saint-Lambert-de-Lauzon, but a local or conservation-authority map may still exist.
Towns with a flood study on file
Saint-Lambert-de-Lauzon has no flood study on file; only 45% of towns in Quebec do, against 58% across Canada.
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-Lambert-de-Lauzon’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.”
Earthquakes cost buildings in Saint-Lambert-de-Lauzon $0.14 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Roughly 4.7 times the typical $0.030: Saint-Lambert-de-Lauzon’s $0.14 marks real seismic exposure.
Shaking damage a year per $1,000 of building value
Neither high nor low in Quebec: Saint-Lambert-de-Lauzon’s $0.14 sits by the median of $0.14, while La Pocatière reaches $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 20% of Canada’s 2,611 towns are above Saint-Lambert-de-Lauzon.
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).
For Saint-Lambert-de-Lauzon the model prices shaking damage to buildings, nothing more.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Test for radon in Saint-Lambert-de-Lauzon: 13% of area homes were over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Radon tests for the Chaudiere-Appalaches health region
A higher share than most: 13% of tested homes around Saint-Lambert-de-Lauzon, the typical Canadian town 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Around Saint-Lambert-de-Lauzon, 13% of tests were over 200 Bq/m³ and 0.6% over 600, against a median of 8.2% in Quebec.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
4.6% of Canada’s 2,611 towns have a higher share of homes over 200 Bq/m³ than Saint-Lambert-de-Lauzon, in the 10–20% band with 22%.
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 low area share in Saint-Lambert-de-Lauzon doesn’t clear a house, nor does a high one condemn it: test.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Saint-Lambert-de-Lauzon
Environment and Climate Change Canada issues the weather alerts for Saint-Lambert-de-Lauzon; 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. |
In fire season, check CWFIS for danger and active fires around Saint-Lambert-de-Lauzon, and listen to local authorities for orders.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Saint-Lambert-de-Lauzon’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-Lambert-de-Lauzon | Low | $0.14 | 13% | None listed |
| Saint-Narcisse-de-Beaurivage 1,303 · 9.2 km | Low | $0.11 | 13% | None listed |
| Saint-Isidore 3,550 · 9.4 km | Low | $0.12 | 13% | None listed |
| Saint-Bernard 2,680 · 11 km | Low | $0.10 | 13% | None listed |
| Saint-Gilles 3,521 · 13 km | Low | $0.13 | 13% | Yes |
| Scott 2,938 · 14 km | Low | $0.098 | 13% | None listed |
| Saint-Agapit 4,817 · 17 km | Low | $0.13 | 13% | Yes |
Fire is no heavier anywhere nearby than around Saint-Lambert-de-Lauzon (low), with Saint-Narcisse-de-Beaurivage next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Saint-Lambert-de-Lauzon faces
Practical steps for Saint-Lambert-de-Lauzon’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.
- 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
- Flood studies aren’t flood zones. The flood inventory points to maps; it is incomplete and not the official source, so ask the municipality about any street in Saint-Lambert-de-Lauzon.
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Saint-Lambert-de-Lauzon’s included.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Saint-Lambert-de-Lauzon takes its 2007 health region’s share.
- 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 Saint-Lambert-de-Lauzon.
Questions about flooding and hazards in Saint-Lambert-de-Lauzon
Does Saint-Lambert-de-Lauzon flood?
The inventory has 0 studies for Saint-Lambert-de-Lauzon, and an empty list isn’t a clean bill: the municipality holds any flood maps.
How is Saint-Lambert-de-Lauzon’s Hazard risk Grade worked out?
Saint-Lambert-de-Lauzon grades D for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is radon a problem in Saint-Lambert-de-Lauzon?
The area’s survey found 13% of 175 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Saint-Lambert-de-Lauzon.
How big is the earthquake risk in Saint-Lambert-de-Lauzon?
In NRCan’s seismic model, Saint-Lambert-de-Lauzon’s buildings lose $0.14 per $1,000 of value in an average year.
Is Saint-Lambert-de-Lauzon at risk of wildfire?
Some, but Saint-Lambert-de-Lauzon’s low band (0% of nearby land burned since 1986, latest 2018) is short of the level that counts.
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).