Photo: Onasill ~ Bill - Onasill ~ Bill - 106 Million View · Public domainHazards in Humewood-Cedarvale are mild: low wildfire and earthquake risk, and 2.7% of area homes above the radon guideline
Fire has left almost no mark near Humewood-Cedarvale: 0% of the land within 25 km since 1986, 0.000% a year. Shaking is about as much of a worry in Humewood-Cedarvale as in most places, at $0.043 a year per $1,000 of building value ($0.030 typical). Humewood-Cedarvale grades A− for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Humewood-Cedarvale’s hazards
Four national sources, each read for Humewood-Cedarvale: earthquakes, radon, past fires and flood studies.
What Humewood-Cedarvale faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Humewood-Cedarvale: A−
The grade weighs Humewood-Cedarvale’s seismic risk and radon equally, and wildfire is one-sided: a high band counts against a town, a low one earns nothing.
Its place: #285 of 866 in Ontario and #700 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Only 74 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 Humewood-Cedarvale has burned: 0% within 5 km, 0% within 25 km since 1986
Fires mapped since 1986 around where Humewood-Cedarvale’s residents live, and the fuel next to their homes.
Low by Canadian standards: 0.000% of the land a year around Humewood-Cedarvale, 0.000% for the typical Canadian town.
Around Humewood-Cedarvale the forest is thin or far off: 0.1% of the land within 5 km and 0.9% within 25 km is forest fuel.
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
Of the 871 towns in Ontario, 638 have a burn rate that rounds to zero, Humewood-Cedarvale among them; Sioux Lookout leads at 0.16% 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.
Measured against 2,610 towns, Humewood-Cedarvale is in the largest group, low (92%), and at its floor, while 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.
The flood map inventory lists nothing for Humewood-Cedarvale
Flood studies whose area touches Humewood-Cedarvale, from NRCan’s inventory, each linked to its owner.
Nationally, Humewood-Cedarvale has no listed flood study; the municipality is the place to ask.
Towns with a flood study on file
Missing from a well-mapped province: Humewood-Cedarvale has no study, where 69% of towns in Ontario have one against 58% nationally.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood studies don’t enter the grade; they are listed so you can open the official map for Humewood-Cedarvale.
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 Humewood-Cedarvale $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 Humewood-Cedarvale’s ground: $0.043 against a typical $0.030, 1.4 times.
Shaking damage a year per $1,000 of building value
About level with the typical town in Ontario: Humewood-Cedarvale’s $0.043 against $0.043; Alexandria reaches $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.
Humewood-Cedarvale’s earthquake risk lands near the centre of Canada’s range; 36% of the 2,611 towns are higher.
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 model counts damage to Humewood-Cedarvale’s buildings and their occupants from shaking only: not liquefaction, landslides, tsunami or fires after a quake.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean). · Earthquake risk: the city of Toronto
2.7% of homes tested around Humewood-Cedarvale are over the radon guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Area-wide: radon tests, counted over the City of Toronto Health Unit
Radon runs below the typical Canadian town (6.6%) in Humewood-Cedarvale’s area, at 2.7%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Fewer homes top the guideline around Humewood-Cedarvale (2.7%) 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.
The quietest radon band, under 5%, holds 37% of Canada’s 2,611 towns and Humewood-Cedarvale; 63% sit 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 share describes the area, not a house: in Humewood-Cedarvale as anywhere, test to be sure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Humewood-Cedarvale
Alerts for Humewood-Cedarvale 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 Humewood-Cedarvale 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 Humewood-Cedarvale
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Humewood-Cedarvale | Low | $0.043 | 2.7% | None listed |
| Forest Hill South 11,059 · 0.9 km | Low | $0.043 | 2.7% | None listed |
| Oakwood Village 20,830 · 1.3 km | Low | $0.043 | 2.7% | None listed |
| Wychwood 13,828 · 1.3 km | Low | $0.043 | 2.7% | None listed |
| Casa Loma 11,369 · 1.6 km | Low | $0.043 | 2.7% | None listed |
| Forest Hill North 12,432 · 1.9 km | Low | $0.043 | 2.7% | None listed |
| Corso Italia-Davenport 13,215 · 2.1 km | Low | $0.043 | 2.7% | None listed |
Fire is no heavier anywhere nearby than around Humewood-Cedarvale (low), with Forest Hill South next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Humewood-Cedarvale faces
What to do about the hazards Humewood-Cedarvale 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?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
What this data can and can’t tell you
- 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 Humewood-Cedarvale until then.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Humewood-Cedarvale without grading them.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Humewood-Cedarvale’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; Humewood-Cedarvale’s figure is its subdivision’s.
Questions about flooding and hazards in Humewood-Cedarvale
How big is the earthquake risk in Humewood-Cedarvale?
Expected earthquake damage in Humewood-Cedarvale comes to $0.043 a year for each $1,000 that buildings are worth.
Is Humewood-Cedarvale at risk of wildfire?
Very little by the national record: Humewood-Cedarvale’s band is low, with 0% of the land within 25 km burned since 1986, so wildfire doesn’t change its grade.
How is Humewood-Cedarvale’s Hazard risk Grade worked out?
Hazard risk gives Humewood-Cedarvale A−, weighing earthquakes and radon and counting wildfire only against it.
Is radon a problem in Humewood-Cedarvale?
Around Humewood-Cedarvale, 74 survey homes were tested and 2.7% came in over 200 Bq/m³, a guide to the area, not to any one home.
Does Humewood-Cedarvale flood?
With 0 studies on the inventory, Humewood-Cedarvale’s flood risk is unmapped nationally; check with the municipality before buying.
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).