Photo: GTD Aquitaine · Public domainRegent Park is on Canada’s flood inventory: 1 listed, led by Toronto Regional Conservation Authority
No wildfire is mapped within 25 km of Regent Park’s homes since 1986 (0% of the land, 0.000% a year). Seismic risk in Regent Park sits near the middle: $0.043 of expected damage per $1,000 of buildings a year, the typical town $0.030. Fewer homes than usual carry radon here, 2.7% over the guideline where the typical town has 6.6%. Regent Park grades A− for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Regent Park’s hazards
Four national sources, each read for Regent Park: earthquakes, radon, past fires and flood studies.
What Regent Park faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Regent Park: A−
Earthquake risk and radon make Regent Park’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
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. The radon share rests on 74 home tests in the survey area, so a few homes move it. Small fires and grass fires are largely missing from the national burned-area record.
Little of the land around Regent Park has burned: 0% within 5 km, 0% within 25 km since 1986
Past fire around Regent Park’s homes, from the national burned-area record, with the fuel within 5 km.
Low: the land around Regent Park burns at 0.000% a year, where the typical Canadian town sees 0.000%.
Land that isn’t forest covers nearly all the ground around Regent Park: forest fuel is 1.3% within 5 km and 0.9% 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
Of the 871 towns in Ontario, 638 have a burn rate that rounds to zero, Regent Park 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.
Only 7.5% of Canada’s 2,610 towns are above the low band, which holds 92%; Regent Park, at a rounded zero, is far from them.
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.
A flood study covers Regent Park, from Toronto Regional Conservation Authority: 1 on the inventory
What Canada’s Flood Map Inventory lists for Regent Park: who studied flooding and where to see their maps.
Toronto Regional Conservation Authority studied flooding in an area that includes Regent Park (2021); open its map to see which streets lie in a flood zone.
| Study | By | Year | Status |
|---|---|---|---|
| Toronto Floodline Consolidation | Toronto Regional Conservation Authority | 2021 | final |
Towns with a flood study on file
Its flood study puts Regent Park with 69% of towns in Ontario; Canada’s share is 58%.
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 Regent Park.
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.
Expected shaking damage in Regent Park: $0.043 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
At $0.043 per $1,000, Regent Park’s earthquake risk is about the typical Canadian town’s ($0.030; 1.4 times).
Regent Park doesn’t get its own earthquake risk figures; the ones here come from the city of Toronto.
Shaking damage a year per $1,000 of building value
Regent Park’s $0.043 is close to the median in Ontario, $0.043; Alexandria is highest at $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.
Regent Park 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).
Roads, pipes and bridges aren’t in Regent Park’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).
2.7% of homes tested around Regent Park are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Source area for radon tests: the City of Toronto Health Unit
Regent Park’s survey area reads 2.7% over the guideline, under the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Regent Park’s area, at 2.7%, is below the median in Ontario (4%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Few tests over the guideline: Regent Park shares the bottom band with 37% of Canada’s 2,611 towns, below the other 63%.
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.
Basements, soil and how a house is sealed decide its radon, so in Regent Park only a test can say.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Regent Park
Alerts for Regent Park 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. |
Alert Ready carries evacuation orders for Regent Park to phones; CWFIS shows the day’s fire danger.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Regent Park’s neighbours compare on hazards
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Regent Park | Low | $0.043 | 2.7% | Yes |
| Moss Park 22,701 · 0.7 km | Low | $0.043 | 2.7% | Yes |
| Cabbagetown-South St.James Town 11,205 · 0.9 km | Low | $0.043 | 2.7% | Yes |
| Downtown Yonge East 18,251 · 1.3 km | Low | $0.043 | 2.7% | None listed |
| North St.James Town 18,733 · 1.6 km | Low | $0.043 | 2.7% | Yes |
| St Lawrence-East Bayfront-The Islands 31,360 · 1.6 km | Low | $0.043 | 2.7% | Yes |
| North Riverdale 11,491 · 1.6 km | Low | $0.043 | 2.7% | Yes |
Regent Park’s low band tops its neighbours; Moss Park is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Regent Park faces
Practical steps for Regent Park’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. Wildfire is read from the national burned-area record around Regent Park’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; Regent Park’s figure is its subdivision’s.
- Flood studies aren’t flood zones. A study’s area can be a whole watershed or province, so being on the inventory says a map exists, not that a home in Regent Park floods.
- Radon is a survey. The radon share comes from about 14,000 long-term home tests in 2009–2011, pooled for now by the 2007 health region Regent Park sits in.
Questions about flooding and hazards in Regent Park
Does Regent Park flood?
Regent Park’s area has been studied for flooding, and the owner’s map shows which streets lie in a zone; the grade leaves flood out.
How big is the earthquake risk in Regent Park?
In NRCan’s seismic model, Regent Park’s buildings lose $0.043 per $1,000 of value in an average year.
How is Regent Park’s Hazard risk Grade worked out?
Regent Park grades A− for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is radon a problem in Regent Park?
2.7% of the 74 homes Health Canada tested around Regent Park topped the guideline; your own house needs its own test.
Is Regent Park at risk of wildfire?
The burned-area record shows next to nothing around Regent Park (0% within 25 km since 1986), so its band is low.
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).