Photo: Ian Muttoo from Mississauga, Canada · CC BY-SA 2.0DT Core faces fewer hazards than 86% of Canadian towns
The national fire record shows next to nothing around DT Core, 0% of the land within 25 km since 1986 (0.000% a year). For earthquakes DT Core is middling, $0.040 a year per $1,000 against $0.030 for the typical town. Fewer homes than usual carry radon here, 0% over the guideline where the typical town has 6.6%. Hazard risk gives DT Core a grade of A, from earthquakes and radon alone.
What stands out about DT Core’s hazards
For DT Core, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What DT Core faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
DT Core grades A for hazard risk
Earthquake risk and radon make DT Core’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #194 of 866 in Ontario and #529 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Wildfire is rare near DT Core: 0% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where DT Core’s residents live, and the fuel next to their homes.
At 0.000% of the land a year, DT Core’s burn rate is in the low band; the typical Canadian town sees 0.000%.
Around DT Core the forest is thin or far off: 0.4% of the land within 5 km and 0.5% within 25 km is forest fuel.
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
Among the 871 towns in Ontario, Sioux Lookout burns fastest (0.16% a year); DT Core is with the 638 near zero.
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.
Most of the country’s 2,610 towns are low-band (92%, against 7.5% above); around DT Core, burning rounds to zero.
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.
DT Core is on the flood map inventory: 3 studies, latest by Credit Valley Conservation Authority
Flood studies whose area touches DT Core, from NRCan’s inventory, each linked to its owner.
The newest of 3 studies covering DT Core is Credit Valley Conservation Authority’s, from 2019; open its map to see the zones.
| Study | By | Year | Status |
|---|---|---|---|
| Cooksville Creek | Credit Valley Conservation Authority | 2019 | final · not public |
| Mary Fix Creek | Credit Valley Conservation Authority | 2019 | final · not public |
| Wolfedale Creek | Credit Valley Conservation Authority | 2019 | final · not public |
Towns with a flood study on file
69% of towns in Ontario have a flood study, more than Canada’s 58%; DT Core 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 DT Core.
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 DT Core: $0.040 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.
DT Core’s $0.040 is close to the typical town’s $0.030 (1.3 times as much).
Shaking damage a year per $1,000 of building value
Typical for its province: DT Core at $0.040 beside a median in Ontario of $0.043, with Alexandria on top 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 DT Core (43%).
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).
For DT Core the model prices shaking damage to buildings, nothing more.
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 Mississauga
Radon runs low around DT Core: 0% of tested homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Shared with the rest of the Peel Regional Health Unit: radon tests
DT Core’s area, at 0%, is below the 6.6% of the typical Canadian town, though any one home can still be high.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The median in Ontario is 4% over 200 Bq/m³; around DT Core it is 0%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Few tests over the guideline: DT Core 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.
A low area share in DT Core doesn’t clear a house, nor does a high one condemn it: test.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in DT Core
Alerts for DT Core 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 DT Core 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 DT Core
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| DT Core | Low | $0.040 | 0% | Yes |
| Fairview 7,597 · 1.0 km | Low | $0.040 | 0% | Yes |
| DT Fairview 18,209 · 1.1 km | Low | $0.040 | 0% | Yes |
| Creditview 10,972 · 1.7 km | Low | $0.040 | 0% | Yes |
| DT Cooksville 8,864 · 2.0 km | Low | $0.040 | 0% | Yes |
| Uptown 12,244 · 2.1 km | Low | $0.040 | 0% | Yes |
| Cooksville NHD (West) 14,821 · 2.4 km | Low | $0.040 | 0% | Yes |
Among its neighbours DT Core has the most fire on record (low); Fairview follows (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what DT Core faces
Practical steps for DT Core’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
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for DT Core’s census subdivision (a neighbourhood shows its city’s).
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for DT Core without grading them.
- Wildfire counts one way. For DT Core, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
- 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 DT Core until then.
Questions about flooding and hazards in DT Core
How big is the earthquake risk in DT Core?
Expected earthquake damage in DT Core comes to $0.040 a year for each $1,000 that buildings are worth.
Does DT Core flood?
A flood study covers DT Core on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
How is DT Core’s Hazard risk Grade worked out?
DT Core’s Hazard risk grade is A, built on earthquakes and radon with a one-sided wildfire input.
Is DT Core at risk of wildfire?
Hardly at all on record: 0% of the land within 25 km of DT Core since 1986, a low band, though small grass fires aren’t mapped.
Is radon a problem in DT Core?
The area’s survey found 0% of 90 tested homes above Health Canada’s guideline, so a three-month test is worth doing in DT Core.
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).