Photo: OldYorkGuy · CC BY-SA 3.0O'Connor-Parkview is on Canada’s flood inventory: 1 listed, led by Toronto Regional Conservation Authority
The national fire record shows next to nothing around O'Connor-Parkview, 0% of the land within 25 km since 1986 (0.001% a year). Seismic risk in O'Connor-Parkview sits near the middle: $0.043 of expected damage per $1,000 of buildings a year, the typical town $0.030. In Health Canada’s survey, just 2.7% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Hazard risk gives O'Connor-Parkview a grade of A−; its wildfire band pulls it down.
What stands out about O'Connor-Parkview’s hazards
Four national sources, each read for O'Connor-Parkview: earthquakes, radon, past fires and flood studies.
What O'Connor-Parkview faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
O'Connor-Parkview grades A− for hazard risk
Seismic risk and radon set O'Connor-Parkview’s grade, wildfire can drag it down, and flood mapping stays out of 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.
Few fires near O'Connor-Parkview: 0% within 5 km, 0% within 25 km
Past fire around O'Connor-Parkview’s homes, from the national burned-area record, with the fuel within 5 km.
Low: the land around O'Connor-Parkview burns at 0.001% a year, where the typical Canadian town sees 0.000%.
Fire has stayed at least 21 km from O'Connor-Parkview’s homes since 1986.
Land that isn’t forest covers nearly all the ground around O'Connor-Parkview: forest fuel is 0.2% within 5 km and 1.6% 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, O'Connor-Parkview 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.
O'Connor-Parkview is in the low band with 92% of Canada’s 2,610 towns; 7.5% sit in moderate or 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 O'Connor-Parkview, from Toronto Regional Conservation Authority: 1 on the inventory
What Canada’s Flood Map Inventory lists for O'Connor-Parkview: who studied flooding and where to see their maps.
Toronto Regional Conservation Authority holds the flood mapping that covers O'Connor-Parkview (2021), linked below.
| Study | By | Year | Status |
|---|---|---|---|
| Toronto Floodline Consolidation | Toronto Regional Conservation Authority | 2021 | final |
Towns with a flood study on file
69% of towns in Ontario have a flood study, more than Canada’s 58%; O'Connor-Parkview has one too.
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 O'Connor-Parkview.
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 O'Connor-Parkview: $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: O'Connor-Parkview’s $0.043 is ordinary.
Shaking damage a year per $1,000 of building value
O'Connor-Parkview’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.
O'Connor-Parkview 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 O'Connor-Parkview’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). · Area behind the earthquake risk figures: the city of Toronto
Little radon around O'Connor-Parkview: 2.7% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Radon runs below the typical Canadian town (6.6%) in O'Connor-Parkview’s area, at 2.7%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Against the typical town in Ontario (4%), the area around O'Connor-Parkview 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.
Few tests over the guideline: O'Connor-Parkview 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.
The survey sampled homes around O'Connor-Parkview; 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 O'Connor-Parkview
Alerts for O'Connor-Parkview 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. |
Fire danger and active fires near O'Connor-Parkview are mapped daily by the Canadian Wildland Fire Information System; evacuation orders come from the municipality or province.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around O'Connor-Parkview
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| O'Connor-Parkview | Low | $0.043 | 2.7% | Yes |
| Taylor-Massey 15,050 · 1.2 km | Low | $0.043 | 2.7% | Yes |
| Woodbine-Lumsden 7,928 · 1.6 km | Low | $0.043 | 2.7% | Yes |
| Oakridge 13,913 · 2.0 km | Low | $0.043 | 2.7% | Yes |
| Clairlea-Birchmount 27,690 · 2.3 km | Low | $0.043 | 2.7% | Yes |
| East End-Danforth 22,055 · 2.4 km | Low | $0.043 | 2.7% | Yes |
| Victoria Village 17,647 · 2.5 km | Low | $0.043 | 2.7% | Yes |
O'Connor-Parkview’s low band tops its neighbours; Taylor-Massey is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what O'Connor-Parkview faces
Practical steps for O'Connor-Parkview’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 O'Connor-Parkview’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; O'Connor-Parkview’s figure is its subdivision’s.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for O'Connor-Parkview without grading them.
- 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 O'Connor-Parkview until then.
Questions about flooding and hazards in O'Connor-Parkview
How big is the earthquake risk in O'Connor-Parkview?
In NRCan’s seismic model, O'Connor-Parkview’s buildings lose $0.043 per $1,000 of value in an average year.
Is radon a problem in O'Connor-Parkview?
2.7% of the 74 homes Health Canada tested around O'Connor-Parkview topped the guideline; your own house needs its own test.
Is O'Connor-Parkview at risk of wildfire?
Not much by Canadian standards: O'Connor-Parkview’s band is low, with 0% of the land within 25 km burned since 1986 (last in 2001), so wildfire doesn’t change its grade.
Does O'Connor-Parkview flood?
A flood study covers O'Connor-Parkview on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
How is O'Connor-Parkview’s Hazard risk Grade worked out?
Hazard risk gives O'Connor-Parkview 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).