Photo: Jennie Faber from Toronto, Ontario, Canada · CC BY 2.0Lawrence Park North is on Canada’s flood inventory: 1 listed, led by Toronto Regional Conservation Authority
Wildfire barely registers for Lawrence Park North, at 0% of the land within 25 km since 1986 (0.001% a year). For earthquakes Lawrence Park North is middling, $0.043 a year per $1,000 against $0.030 for the typical town. Fewer homes than usual carry radon here, 2.7% over the guideline where the typical town has 6.6%. Hazard risk gives Lawrence Park North a grade of A−; its wildfire band pulls it down.
What stands out about Lawrence Park North’s hazards
Four national sources, each read for Lawrence Park North: earthquakes, radon, past fires and flood studies.
What Lawrence Park North faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Lawrence Park North: A−
Seismic risk and radon set Lawrence Park North’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. 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 Lawrence Park North: 0% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where Lawrence Park North’s residents live, and the fuel next to their homes.
Around Lawrence Park North fire takes 0.001% of the land in a typical year, the typical Canadian town 0.000%, which is low.
The closest burn since 1986 lies 25 km from Lawrence Park North’s homes, none within 5 km.
Forest makes up 0.2% of the land within 5 km of Lawrence Park North and 1.7% 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
In the top quarter in Ontario: Lawrence Park North ranks 83rd of 871 at 0.001% a year, with Sioux Lookout first 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 Lawrence Park North, 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.
A flood study covers Lawrence Park North, from Toronto Regional Conservation Authority: 1 on the inventory
Flood studies whose area touches Lawrence Park North, from NRCan’s inventory, each linked to its owner.
Toronto Regional Conservation Authority studied flooding in an area that includes Lawrence Park North (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
Flood maps are common in Ontario: 69% of towns have one, against 58% nationally, and Lawrence Park North is among them.
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 Lawrence Park North.
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 Lawrence Park North: $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.
Earthquake losses in Lawrence Park 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; Lawrence Park 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 Lawrence Park 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).
Roads, pipes and bridges aren’t in Lawrence Park North’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). · Earthquake risk: the city of Toronto
2.7% of homes tested around Lawrence Park North are over the radon guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
Where the typical Canadian town has 6.6% of homes over the guideline, Lawrence Park North’s area has fewer, 2.7%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Fewer homes top the guideline around Lawrence Park North (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 Lawrence Park North’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 survey sampled homes around Lawrence Park North; it can’t tell you your basement’s level.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Not measured by town: radon tests (the City of Toronto Health Unit)
Weather and fire alerts for Lawrence Park North
Alerts for Lawrence Park 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. |
Alert Ready carries evacuation orders for Lawrence Park North to phones; CWFIS shows the day’s fire danger.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Lawrence Park North
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Lawrence Park North | Low | $0.043 | 2.7% | Yes |
| Bedford Park-Nortown 22,376 · 1.3 km | Low | $0.043 | 2.7% | Yes |
| Lawrence Park South 15,018 · 1.5 km | Low | $0.043 | 2.7% | Yes |
| Bridle Path-Sunnybrook-York Mills 9,909 · 1.8 km | Low | $0.043 | 2.7% | Yes |
| North Toronto 16,007 · 2.1 km | Low | $0.043 | 2.7% | Yes |
| Yonge-Eglinton 12,424 · 2.6 km | Low | $0.043 | 2.7% | Yes |
| Englemount-Lawrence 21,455 · 2.7 km | Low | $0.043 | 2.7% | None listed |
Bridle Path-Sunnybrook-York Mills (low) has the heaviest fire record of Lawrence Park North’s neighbours, and Lawrence Park North (low) matches or beats it.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Lawrence Park North faces
Practical steps for Lawrence Park North’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
- 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 Lawrence Park North sits in.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Lawrence Park North’s 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 Lawrence Park North’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 Lawrence Park North floods.
Questions about flooding and hazards in Lawrence Park North
How is Lawrence Park North’s Hazard risk Grade worked out?
Lawrence Park North grades A− for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is Lawrence Park North at risk of wildfire?
Some, but Lawrence Park North’s low band (0% of nearby land burned since 1986, latest 2001) is short of the level that counts.
How big is the earthquake risk in Lawrence Park North?
About $0.043 a year per $1,000 of building value, NRCan’s long-run expectation for Lawrence Park North.
Is radon a problem in Lawrence Park North?
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 Lawrence Park North.
Does Lawrence Park North flood?
Lawrence Park 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.
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).