Photo: Gary J. Wood from Toronto, ON, Canada · CC BY-SA 2.0Edgeley faces fewer hazards than 90% of Canadian towns
Fire has left almost no mark near Edgeley: 0% of the land within 25 km since 1986, 0.000% a year. NRCan expects $0.028 of shaking damage a year per $1,000 of buildings in Edgeley, near the typical $0.030. In Health Canada’s survey, just 0% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Hazard risk gives Edgeley a grade of A, from earthquakes and radon alone.
What stands out about Edgeley’s hazards
Four national sources, each read for Edgeley: earthquakes, radon, past fires and flood studies.
What Edgeley faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Edgeley grades A for hazard risk
Earthquake risk and radon make Edgeley’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #74 of 866 in Ontario and #383 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Small fires and grass fires are largely missing from the national burned-area record.
Wildfire is rare near Edgeley: 0% of the land within 25 km burned since 1986, 0% within 5 km
Past fire around Edgeley’s homes, from the national burned-area record, with the fuel within 5 km.
In a typical year 0.000% of the land near Edgeley burns; the typical Canadian town sees 0.000%, and both are low.
Forest makes up 0% of the land within 5 km of Edgeley and 2.8% 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
Near-zero burning puts Edgeley with 638 of the 871 towns in Ontario, far below Sioux Lookout at 0.16%.
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.
92% of Canada’s 2,610 towns are in the low band and 7.5% above it; Edgeley is among the many where the yearly burn rate 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.
Toronto Regional Conservation Authority has mapped flooding for Edgeley (1 study)
What Canada’s Flood Map Inventory lists for Edgeley: who studied flooding and where to see their maps.
A 2021 study by Toronto Regional Conservation Authority covers Edgeley, and its map, not the inventory, shows the zones.
| 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%; Edgeley has one too.
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 Edgeley’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.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
Earthquakes cost buildings in Edgeley $0.028 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
At $0.028 per $1,000, Edgeley’s earthquake risk is about the typical Canadian town’s ($0.030; 0.9 times).
For earthquake risk, the only official count covers all of the city of Vaughan, Edgeley included.
Shaking damage a year per $1,000 of building value
Below the middle in Ontario: Edgeley’s $0.028 against a median of $0.043; 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.
Around half of Canada’s 2,611 towns expect more shaking damage than Edgeley (51%).
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 Edgeley’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).
Little radon around Edgeley: 0% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Edgeley’s survey area reads 0% over the guideline, under the typical Canadian town’s 6.6%. Behind radon tests sits data gathered across the York Regional Health Unit, with Edgeley one part of it.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Fewer homes top the guideline around Edgeley (0%) 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.
Under 5% puts Edgeley 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.
The survey sampled homes around Edgeley; 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 Edgeley
Environment and Climate Change Canada issues the weather alerts for Edgeley; 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. |
Smoke and fire warnings for Edgeley come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Edgeley
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Edgeley | Low | $0.028 | 0% | Yes |
| Vaughan Metropolitan Centre 8,484 · 3.1 km | Low | $0.028 | 0% | Yes |
| Concord 7,225 · 3.3 km | Low | $0.028 | 0% | Yes |
| Black Creek 21,307 · 4.4 km | Low | $0.043 | 2.7% | Yes |
| Dufferin Hill 7,910 · 4.5 km | Low | $0.028 | 0% | Yes |
| Vellore 39,490 · 4.6 km | Low | $0.028 | 0% | Yes |
| Crossroads 4,525 · 4.7 km | Low | $0.028 | 0% | Yes |
Edgeley’s low band tops its neighbours; Vaughan Metropolitan Centre is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Edgeley faces
Practical steps for Edgeley’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
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Edgeley’s homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Edgeley without grading them.
- 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 Edgeley’s.
- 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 Edgeley until then.
Questions about flooding and hazards in Edgeley
Does Edgeley flood?
A flood study covers Edgeley on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
How is Edgeley’s Hazard risk Grade worked out?
Edgeley grades A for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is radon a problem in Edgeley?
0% of the 95 homes Health Canada tested around Edgeley topped the guideline; your own house needs its own test.
Is Edgeley at risk of wildfire?
The burned-area record shows next to nothing around Edgeley (0% within 25 km since 1986), so its band is low.
How big is the earthquake risk in Edgeley?
In NRCan’s seismic model, Edgeley’s buildings lose $0.028 per $1,000 of value in an average year.
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).