Photo: Dillan Payne · CC BY-SA 4.0A flood study covers Broadview North: 1 on the national inventory, the newest from Toronto Regional Conservation Authority
Since 1986 almost nothing has burned near Broadview North: 0% of the land within 25 km, or 0.001% a year. For earthquakes Broadview North is middling, $0.043 a year per $1,000 against $0.030 for the typical town. 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 Broadview North a grade of A−; its wildfire band pulls it down.
What stands out about Broadview North’s hazards
Four national sources, each read for Broadview North: earthquakes, radon, past fires and flood studies.
What Broadview North faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Broadview North grades A− for hazard risk
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Broadview North with little fire nearby would get no credit for it.
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.
Wildfire is rare near Broadview North: 0% of the land within 25 km burned since 1986, 0% within 5 km
Past fire around Broadview North’s homes, from the national burned-area record, with the fuel within 5 km.
Fire claims 0.001% of the land around Broadview North each year, a low band, with the typical Canadian town at 0.000%.
The closest burn since 1986 lies 25 km from Broadview North’s homes, none within 5 km.
Little near Broadview North’s homes can carry a forest fire; only 0.5% of the land within 5 km is forest fuel, and 1.1% 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
At 0.001% a year, Broadview North is near the top in Ontario: 83rd of 871, behind Sioux Lookout (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.
The low band takes in 92% of Canada’s 2,610 towns, Broadview North among them, though its rate is above zero; 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.
Broadview North is on the flood map inventory: 1 study, by Toronto Regional Conservation Authority
What Canada’s Flood Map Inventory lists for Broadview North: who studied flooding and where to see their maps.
Toronto Regional Conservation Authority holds the flood mapping that covers Broadview North (2021), linked below.
| Study | By | Year | Status |
|---|---|---|---|
| Toronto Floodline Consolidation | Toronto Regional Conservation Authority | 2021 | final |
Towns with a flood study on file
Its flood study puts Broadview North 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.
Listed, not scored: a flood study proves a map exists, not that Broadview North floods.
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 Broadview North $0.043 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Earthquake losses in Broadview North, $0.043 per $1,000, are in line with the typical $0.030 (1.4 times).
Shaking damage a year per $1,000 of building value
The median in Ontario is $0.043; Broadview North, at $0.043, is right beside it, and Alexandria tops the list 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.
Around half of Canada’s 2,611 towns expect more shaking damage than Broadview North (36%).
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 Broadview North’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). · Earthquake risk: the city of Toronto
Little radon around Broadview North: 2.7% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Area-wide: radon tests, counted over the City of Toronto Health Unit
Where the typical Canadian town has 6.6% of homes over the guideline, Broadview North’s area has fewer, 2.7%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The median in Ontario is 4% over 200 Bq/m³; around Broadview North it is 2.7%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Broadview North is in the lowest band, with 37% of Canada’s 2,611 towns: under 5% of tests over the guideline, while 63% have more.
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 Broadview North only a test can say.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Broadview North
Alerts for Broadview North 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 Broadview North 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 Broadview North
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Broadview North | Low | $0.043 | 2.7% | Yes |
| Playter Estates-Danforth 7,712 · 1.1 km | Low | $0.043 | 2.7% | Yes |
| Old East York 9,175 · 1.4 km | Low | $0.043 | 2.7% | Yes |
| Danforth East York 17,073 · 1.6 km | Low | $0.043 | 2.7% | Yes |
| Thorncliffe Park 20,637 · 1.8 km | Low | $0.043 | 2.7% | Yes |
| Danforth 9,364 · 1.8 km | Low | $0.043 | 2.7% | None listed |
| North Riverdale 11,491 · 1.8 km | Low | $0.043 | 2.7% | Yes |
Broadview North’s low band tops its neighbours; Old East York is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Broadview North faces
What to do about the hazards Broadview North 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?
- Check the address on the flood map.
- Are flood and wildfire insured?
What this data can and can’t tell you
- 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 Broadview North sits in.
- 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 Broadview North floods.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Broadview North’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; Broadview North’s figure is its subdivision’s.
Questions about flooding and hazards in Broadview North
Is Broadview North at risk of wildfire?
Fire has reached 0% of the land around Broadview North since 1986 (last in 2001); at low, it neither helps nor hurts the grade.
Is radon a problem in Broadview North?
Around Broadview North, 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 Broadview North flood?
Broadview North’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 Broadview North?
In NRCan’s seismic model, Broadview North’s buildings lose $0.043 per $1,000 of value in an average year.
How is Broadview North’s Hazard risk Grade worked out?
Hazard risk gives Broadview North A−, weighing earthquakes and radon and counting wildfire only against it.
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).