Photo: Daniel from Glasgow, United Kingdom · CC BY 2.0Flood mapping exists for Lansing-Westgate: 1 on record, latest by Toronto Regional Conservation Authority
For Lansing-Westgate, wildfire history is close to nil: 0% of nearby land since 1986, 0.001% a year. For earthquakes Lansing-Westgate is middling, $0.043 a year per $1,000 against $0.030 for the typical town. Radon is lower than usual: 2.7% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Hazard risk gives Lansing-Westgate a grade of A−; its wildfire band pulls it down.
What stands out about Lansing-Westgate’s hazards
For Lansing-Westgate, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Lansing-Westgate faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Lansing-Westgate: A−
Two inputs always count for Lansing-Westgate, earthquakes and radon; the third, wildfire, counts only against a town.
Its place: #285 of 866 in Ontario and #700 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Only 74 homes were tested in the survey area, so the radon share is rough. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Little of the land around Lansing-Westgate has burned: 0% within 5 km, 0% within 25 km since 1986
Fires mapped since 1986 around where Lansing-Westgate’s residents live, and the fuel next to their homes.
Low: the land around Lansing-Westgate burns at 0.001% a year, where the typical Canadian town sees 0.000%.
The closest burn since 1986 lies 24 km from Lansing-Westgate’s homes, none within 5 km.
Land that isn’t forest covers nearly all the ground around Lansing-Westgate: forest fuel is 0.2% within 5 km and 2.1% 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 Ontario · highest of 871
Sioux Lookout burns fastest in Ontario at 0.16% a year; Lansing-Westgate, at 0.001%, ranks 83rd of 871.
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, Lansing-Westgate 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.
Lansing-Westgate is on the flood map inventory: 1 study, by Toronto Regional Conservation Authority
Flood studies whose area touches Lansing-Westgate, from NRCan’s inventory, each linked to its owner.
Toronto Regional Conservation Authority holds the flood mapping that covers Lansing-Westgate (2021), linked below.
| Study | By | Year | Status |
|---|---|---|---|
| Toronto Floodline Consolidation | Toronto Regional Conservation Authority | 2021 | final |
Towns with a flood study on file
69% of towns in Ontario have a flood study, more than Canada’s 58%; Lansing-Westgate has one too.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood mapping is shown for Lansing-Westgate to be opened and checked, never turned into a grade.
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 Lansing-Westgate $0.043 per $1,000 a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
Nothing unusual about Lansing-Westgate’s ground: $0.043 against a typical $0.030, 1.4 times.
Shaking damage a year per $1,000 of building value
Shaking damage around Lansing-Westgate runs at $0.043 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.
Lansing-Westgate sits mid-range among Canada’s 2,611 towns: 36% expect more shaking damage.
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).
What a quake does after the shaking, fire, landslides, tsunami, falls outside NRCan’s figure for Lansing-Westgate.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean). · Earthquake risk published for the city of Toronto, not by town
2.7% of homes tested around Lansing-Westgate are over the radon guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Source area for radon tests: the City of Toronto Health Unit
At 2.7% over the guideline, the area around Lansing-Westgate is under the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon runs lower around Lansing-Westgate than in most towns in Ontario: 2.7% against 4%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Lansing-Westgate is in the lowest band, with 37% of Canada’s 2,611 towns: under 5% of tests over the guideline, while 63% have more.
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 Lansing-Westgate 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 Lansing-Westgate
Alerts for Lansing-Westgate 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. |
Evacuation orders for Lansing-Westgate come from the municipality or the province, while CWFIS maps fire danger every day.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Lansing-Westgate
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Lansing-Westgate | Low | $0.043 | 2.7% | Yes |
| Avondale 13,803 · 1.3 km | Low | $0.043 | 2.7% | Yes |
| Yonge-Doris 20,298 · 1.8 km | Low | $0.043 | 2.7% | None listed |
| Willowdale West 17,210 · 2.1 km | Low | $0.043 | 2.7% | Yes |
| East Willowdale 15,514 · 2.4 km | Low | $0.043 | 2.7% | Yes |
| Clanton Park 17,673 · 2.4 km | Low | $0.043 | 2.7% | Yes |
| St.Andrew-Windfields 17,005 · 2.6 km | Low | $0.043 | 2.7% | Yes |
Among its neighbours Lansing-Westgate has the most fire on record (low); Avondale follows (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Lansing-Westgate faces
What to do about the hazards Lansing-Westgate 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.
- 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
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Lansing-Westgate’s census subdivision (a neighbourhood shows its city’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 Lansing-Westgate.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Lansing-Westgate takes its 2007 health region’s share.
- Wildfire counts one way. For Lansing-Westgate, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
Questions about flooding and hazards in Lansing-Westgate
Is radon a problem in Lansing-Westgate?
In Health Canada’s survey, 2.7% of 74 homes tested in Lansing-Westgate’s area were above 200 Bq/m³, though only a test tells you about one house.
Is Lansing-Westgate at risk of wildfire?
Less than most of Canada: 0% of the land within 25 km of Lansing-Westgate has burned since 1986, the last in 2001, a low band that leaves Risk alone.
Does Lansing-Westgate flood?
The inventory lists a study touching Lansing-Westgate; whether a given street floods is on that map, not in the grade.
How is Lansing-Westgate’s Hazard risk Grade worked out?
Lansing-Westgate’s Hazard risk grade is A−, built on earthquakes and radon with a one-sided wildfire input.
How big is the earthquake risk in Lansing-Westgate?
About $0.043 a year per $1,000 of building value, NRCan’s long-run expectation for Lansing-Westgate.
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).