Photo: Amakuha · CC BY 4.0Fenside-Parkwoods is on Canada’s flood inventory: 1 listed, led by Toronto Regional Conservation Authority
Since 1986 almost nothing has burned near Fenside-Parkwoods: 0% of the land within 25 km, or 0.001% a year. NRCan expects $0.043 of shaking damage a year per $1,000 of buildings in Fenside-Parkwoods, near the typical $0.030. Radon is lower than usual: 2.7% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Fenside-Parkwoods grades A− for hazard risk, with wildfire counted against it.
What stands out about Fenside-Parkwoods’s hazards
Four national sources, each read for Fenside-Parkwoods: earthquakes, radon, past fires and flood studies.
What Fenside-Parkwoods faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Fenside-Parkwoods grades A− for hazard risk
For Fenside-Parkwoods, Risk will be the average of earthquakes and radon, with wildfire added only if it makes the average worse.
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. Small fires and grass fires are largely missing from the national burned-area record.
Wildfire is rare near Fenside-Parkwoods: 0% of the land within 25 km burned since 1986, 0% within 5 km
Past fire around Fenside-Parkwoods’ homes, from the national burned-area record, with the fuel within 5 km.
Around Fenside-Parkwoods fire takes 0.001% of the land in a typical year, the typical Canadian town 0.000%, which is low.
Nothing inside 5 km of Fenside-Parkwoods’ homes has burned since 1986, and the nearest scar is 17 km off.
With 0.2% forest fuel within 5 km and 2.5% within 25 km, the land around Fenside-Parkwoods gives a fire little to burn.
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
The land around Fenside-Parkwoods burns at 0.001% a year, the 83rd highest rate of 871 towns in Ontario; Sioux Lookout tops it 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.
Some fire is mapped around Fenside-Parkwoods, but not enough to leave the low band, where 92% of Canada’s 2,610 towns are; 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.
Toronto Regional Conservation Authority has mapped flooding for Fenside-Parkwoods (1 study)
What Canada’s Flood Map Inventory lists for Fenside-Parkwoods: who studied flooding and where to see their maps.
One study on the inventory touches Fenside-Parkwoods, Toronto Regional Conservation Authority’s from 2021, and its area can be large, so it says a map exists, not that the town floods.
| Study | By | Year | Status |
|---|---|---|---|
| Toronto Floodline Consolidation | Toronto Regional Conservation Authority | 2021 | final |
Towns with a flood study on file
Fenside-Parkwoods is one of the 69% of towns in Ontario with a flood study on file; across Canada it is 58%.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Nothing here counts toward Risk; the studies are pointers to the maps their owners keep for Fenside-Parkwoods.
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.
Ordinary seismic risk in Fenside-Parkwoods: $0.043 per $1,000 of buildings a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
1.4 times the typical $0.030: Fenside-Parkwoods’ $0.043 is ordinary.
For earthquake risk, the only official count covers all of the city of Toronto, Fenside-Parkwoods included.
Shaking damage a year per $1,000 of building value
Neither high nor low in Ontario: Fenside-Parkwoods’ $0.043 sits by the median of $0.043, while 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.
Neither high nor low for Canada: 36% of the 2,611 towns expect more damage than Fenside-Parkwoods.
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 Fenside-Parkwoods’ 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).
Little radon around Fenside-Parkwoods: 2.7% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Fenside-Parkwoods’ area, at 2.7%, is below the 6.6% of the typical Canadian town, though any one home can still be high.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Against the typical town in Ontario (4%), the area around Fenside-Parkwoods has fewer high tests: 2.7%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
63% of Canada’s 2,611 towns have a higher share of homes over 200 Bq/m³ than Fenside-Parkwoods’ band, which holds 37%.
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 Fenside-Parkwoods; it can’t tell you your basement’s level.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Radon tests: one figure for all of the City of Toronto Health Unit
Weather and fire alerts for Fenside-Parkwoods
Environment and Climate Change Canada issues the weather alerts for Fenside-Parkwoods; 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 Fenside-Parkwoods come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Fenside-Parkwoods’ neighbours compare on hazards
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Fenside-Parkwoods | Low | $0.043 | 2.7% | Yes |
| Parkwoods-O'Connor Hills 13,943 · 1.2 km | Low | $0.043 | 2.7% | Yes |
| Henry Farm 19,953 · 1.7 km | Low | $0.043 | 2.7% | Yes |
| Wexford/Maryvale 28,591 · 2.5 km | Low | $0.043 | 2.7% | Yes |
| Banbury-Don Mills 27,472 · 2.7 km | Low | $0.043 | 2.7% | Yes |
| Don Valley Village 26,972 · 3.0 km | Low | $0.043 | 2.7% | Yes |
| Pleasant View 15,248 · 3.0 km | Low | $0.043 | 2.7% | None listed |
Fire is no heavier anywhere nearby than around Fenside-Parkwoods (low), with Parkwoods-O'Connor Hills next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Fenside-Parkwoods faces
Practical steps for Fenside-Parkwoods’ 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
- 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 Fenside-Parkwoods.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Fenside-Parkwoods’ homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
- 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 Fenside-Parkwoods’.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Fenside-Parkwoods takes its 2007 health region’s share.
Questions about flooding and hazards in Fenside-Parkwoods
Is radon a problem in Fenside-Parkwoods?
The area’s survey found 2.7% of 74 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Fenside-Parkwoods.
How is Fenside-Parkwoods’s Hazard risk Grade worked out?
Fenside-Parkwoods’ Hazard risk grade is A−, built on earthquakes and radon with a one-sided wildfire input.
Is Fenside-Parkwoods at risk of wildfire?
Some, but Fenside-Parkwoods’ low band (0% of nearby land burned since 1986, latest 2001) is short of the level that counts.
Does Fenside-Parkwoods flood?
The inventory lists a study touching Fenside-Parkwoods; whether a given street floods is on that map, not in the grade.
How big is the earthquake risk in Fenside-Parkwoods?
NRCan’s model expects shaking to cost buildings in Fenside-Parkwoods $0.043 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).