Photo: Dillan Payne · CC BY-SA 4.0Flood mapping exists for Rosedale-Moore Park: 1 on record, latest by Toronto Regional Conservation Authority
Since 1986 almost nothing has burned near Rosedale-Moore Park: 0% of the land within 25 km, or 0.000% a year. Earthquake risk in Rosedale-Moore Park is ordinary: NRCan’s model puts building losses at $0.043 a year per $1,000 of value, close to the typical town’s $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. Hazard risk gives Rosedale-Moore Park a grade of A−, from earthquakes and radon alone.
What stands out about Rosedale-Moore Park’s hazards
Four national sources, each read for Rosedale-Moore Park: earthquakes, radon, past fires and flood studies.
What Rosedale-Moore Park faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Rosedale-Moore Park grades A− for hazard risk
Earthquake risk and radon make Rosedale-Moore 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. 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.
Few fires near Rosedale-Moore Park: 0% within 5 km, 0% within 25 km
Fires mapped since 1986 around where Rosedale-Moore Park’s residents live, and the fuel next to their homes.
Next to the typical Canadian town (0.000% a year), Rosedale-Moore Park’s 0.000% is in the low band.
Forest makes up 0.4% of the land within 5 km of Rosedale-Moore Park and 1.1% 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
Little or nothing burns around Rosedale-Moore Park in a typical year; 638 of the 871 towns in Ontario share that, and Sioux Lookout leads 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.
Measured against 2,610 towns, Rosedale-Moore Park 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.
A flood study covers Rosedale-Moore Park, from Toronto Regional Conservation Authority: 1 on the inventory
Flood studies whose area touches Rosedale-Moore Park, from NRCan’s inventory, each linked to its owner.
One study on the inventory touches Rosedale-Moore Park, 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
Mapping in Ontario reaches 69% of towns, Rosedale-Moore Park included, beside 58% across Canada.
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 Rosedale-Moore 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 Rosedale-Moore Park: $0.043 a year per $1,000
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
Nothing unusual about Rosedale-Moore Park’s ground: $0.043 against a typical $0.030, 1.4 times.
Shaking damage a year per $1,000 of building value
Rosedale-Moore 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.
Rosedale-Moore Park’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 loss is to Rosedale-Moore Park’s buildings alone, from ground shaking; infrastructure and secondary hazards are left out.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean). · Area behind the earthquake risk figures: the city of Toronto
Little radon around Rosedale-Moore Park: 2.7% of area homes over the 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
A lower share than most: 2.7% of tested homes around Rosedale-Moore Park, the typical Canadian town 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Fewer homes top the guideline around Rosedale-Moore Park (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.
63% of Canada’s 2,611 towns have a higher share of homes over 200 Bq/m³ than Rosedale-Moore Park’s 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 share describes the area, not a house: in Rosedale-Moore Park as anywhere, test to be sure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Rosedale-Moore Park
Environment and Climate Change Canada issues the weather alerts for Rosedale-Moore Park; 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. |
For fires near Rosedale-Moore Park, the national fire information system maps danger and active fires daily; local authorities give any evacuation order.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Rosedale-Moore Park’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Rosedale-Moore Park | Low | $0.043 | 2.7% | Yes |
| North St.James Town 18,733 · 1.5 km | Low | $0.043 | 2.7% | Yes |
| Church-Wellesley 22,415 · 1.7 km | Low | $0.043 | 2.7% | Yes |
| Yonge-St.Clair 13,177 · 1.7 km | Low | $0.043 | 2.7% | None listed |
| Bay-Cloverhill 17,591 · 2.0 km | Low | $0.043 | 2.7% | Yes |
| Playter Estates-Danforth 7,712 · 2.0 km | Low | $0.043 | 2.7% | Yes |
| Casa Loma 11,369 · 2.1 km | Low | $0.043 | 2.7% | None listed |
Rosedale-Moore Park’s low band tops its neighbours; North St.James Town is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Rosedale-Moore Park faces
Practical steps for Rosedale-Moore 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. The wildfire figure is the share of land within 25 km of Rosedale-Moore Park’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 Rosedale-Moore Park 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 Rosedale-Moore Park’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 Rosedale-Moore Park until then.
Questions about flooding and hazards in Rosedale-Moore Park
Is Rosedale-Moore Park at risk of wildfire?
Very little by the national record: Rosedale-Moore Park’s band is low, with 0% of the land within 25 km burned since 1986, so wildfire doesn’t change its grade.
Is radon a problem in Rosedale-Moore Park?
2.7% of the 74 homes Health Canada tested around Rosedale-Moore Park topped the guideline; your own house needs its own test.
How big is the earthquake risk in Rosedale-Moore Park?
Expected earthquake damage in Rosedale-Moore Park comes to $0.043 a year for each $1,000 that buildings are worth.
How is Rosedale-Moore Park’s Hazard risk Grade worked out?
Hazard risk gives Rosedale-Moore Park A−, weighing earthquakes and radon and counting wildfire only against it.
Does Rosedale-Moore Park flood?
A flood study covers Rosedale-Moore Park on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
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).