Photo: Nhl4hamilton | Chit-Chat · Public domainLandsdale’s hazards at a glance: a low wildfire record and 5% of area homes over the radon guideline
Fire has left almost no mark near Landsdale: 0% of the land within 25 km since 1986, 0.000% a year. For earthquakes Landsdale is middling, $0.044 a year per $1,000 against $0.030 for the typical town. Landsdale grades B+ for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Landsdale’s hazards
Four national sources, each read for Landsdale: earthquakes, radon, past fires and flood studies.
What Landsdale faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Landsdale grades B+ for hazard risk
For Landsdale, Risk will be the average of earthquakes and radon, with wildfire added only if it makes the average worse.
Its place: #494 of 866 in Ontario and #1,255 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.
Few fires near Landsdale: 0% within 5 km, 0% within 25 km
Past fire around Landsdale’s homes, from the national burned-area record, with the fuel within 5 km.
The land within 25 km of Landsdale burns at 0.000% a year on average, the low band; the typical Canadian town: 0.000%.
Forest makes up 0.4% of the land within 5 km of Landsdale and 1.6% within 25 km, little for a forest fire to run through.
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 Ontario · highest of 871
Among the 871 towns in Ontario, Sioux Lookout burns fastest (0.16% a year); Landsdale is with the 638 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.
Landsdale shares the low band with 92% of Canada’s 2,610 towns, its burn rate rounding to nothing; 7.5% burn faster.
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 Landsdale
What Canada’s Flood Map Inventory lists for Landsdale: who studied flooding and where to see their maps.
The inventory has nothing for Landsdale, but a local or conservation-authority map may still exist.
Towns with a flood study on file
Landsdale has no flood study on file, though 69% of towns in Ontario do (Canada: 58%).
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
The grade leaves flood out, since a study area says nothing about how many of Landsdale’s homes are at risk.
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 Landsdale: $0.044 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Nothing unusual about Landsdale’s ground: $0.044 against a typical $0.030, 1.5 times.
Shaking damage a year per $1,000 of building value
Shaking damage around Landsdale runs at $0.044 a year, near the $0.043 of the typical town in Ontario; Alexandria has $0.21.
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 Landsdale.
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 Landsdale’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). · Area behind the earthquake risk figures: the city of Hamilton
5% of homes tested around Landsdale are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Measured across the City of Hamilton Health Unit: radon tests
Landsdale’s area sits close to the typical Canadian town: 5% over the guideline, against 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
More homes top the guideline around Landsdale (5%) than in the typical town in Ontario (4%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Between 5% and 10% of tests over the guideline: Landsdale, and 37% of Canada’s 2,611 towns; 26% are higher.
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.
The survey sampled homes around Landsdale; it can’t tell you your basement’s level.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Landsdale
Environment and Climate Change Canada issues the weather alerts for Landsdale; 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 Landsdale, and listen to local authorities for orders.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Landsdale
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Landsdale | Low | $0.044 | 5% | None listed |
| Stinson 3,969 · 0.7 km | Low | $0.044 | 5% | None listed |
| Beasley 6,338 · 0.7 km | Low | $0.044 | 5% | None listed |
| Gibson 7,581 · 1.0 km | Low | $0.044 | 5% | None listed |
| St. Clair 3,201 · 1.1 km | Low | $0.044 | 5% | None listed |
| Corktown 8,952 · 1.2 km | Low | $0.044 | 5% | None listed |
| Stipeley 6,572 · 1.6 km | Low | $0.044 | 5% | None listed |
None of the places around has more fire nearby than Landsdale (low); Stinson comes closest (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Landsdale faces
Practical steps for Landsdale’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. Wildfire is read from the national burned-area record around Landsdale’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; Landsdale’s figure is its subdivision’s.
- 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 Landsdale.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Landsdale takes its 2007 health region’s share.
Questions about flooding and hazards in Landsdale
How is Landsdale’s Hazard risk Grade worked out?
Landsdale grades B+ for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is radon a problem in Landsdale?
5% of the 100 homes Health Canada tested around Landsdale topped the guideline; your own house needs its own test.
Does Landsdale flood?
No study on Canada’s Flood Map Inventory covers Landsdale (0), which doesn’t mean it has never been mapped, so ask the municipality.
Is Landsdale at risk of wildfire?
The burned-area record shows next to nothing around Landsdale (0% within 25 km since 1986), so its band is low.
How big is the earthquake risk in Landsdale?
NRCan’s model expects shaking to cost buildings in Landsdale $0.044 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).