Photo: Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center · Public domainHazards in Katimavik-Hazeldean: wildfire low, radon over the guideline in 6.2% of tested homes
Fire seldom reaches Katimavik-Hazeldean: since 1986, 0.1% of the land within 25 km has burned (0.002% a year). Seismic risk runs high: $0.15 of expected damage per $1,000 of buildings a year, the typical town $0.030. Hazard risk gives Katimavik-Hazeldean a grade of C+; its wildfire band pulls it down.
What stands out about Katimavik-Hazeldean’s hazards
For Katimavik-Hazeldean, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Katimavik-Hazeldean faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Katimavik-Hazeldean grades C+ for hazard risk
Earthquake risk and radon make Katimavik-Hazeldean’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #703 of 866 in Ontario and #1,894 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. The radon share rests on 64 home tests in the survey area, so a few homes move it. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Few fires near Katimavik-Hazeldean: 0% within 5 km, 0.1% within 25 km
Past fire around Katimavik-Hazeldean’s homes, from the national burned-area record, with the fuel within 5 km.
Next to the typical Canadian town (0.000% a year), Katimavik-Hazeldean’s 0.002% is in the low band.
The closest burn since 1986 lies 18 km from Katimavik-Hazeldean’s homes, none within 5 km.
Forest fuel rises from 4.3% within 5 km of Katimavik-Hazeldean to 12% within 25 km: the fuel lies away from homes.
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: Katimavik-Hazeldean ranks 54th of 871 at 0.002% 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.
The low band takes in 92% of Canada’s 2,610 towns, Katimavik-Hazeldean 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.
No flood study is listed for Katimavik-Hazeldean
What Canada’s Flood Map Inventory lists for Katimavik-Hazeldean: who studied flooding and where to see their maps.
No flood study on the national inventory covers Katimavik-Hazeldean; ask the municipality, which is the authority for its flood maps.
Towns with a flood study on file
69% of towns in Ontario have a flood study, more than Canada’s 58%; Katimavik-Hazeldean is not yet one of them.
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 Katimavik-Hazeldean.
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.”
High seismic risk in Katimavik-Hazeldean: $0.15 per $1,000 of buildings a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Roughly 5 times the typical $0.030: Katimavik-Hazeldean’s $0.15 marks real seismic exposure.
Nobody publishes earthquake risk for Katimavik-Hazeldean alone, so this card uses the figure for the city of Ottawa.
Shaking damage a year per $1,000 of building value
Above the middle in Ontario: Katimavik-Hazeldean’s $0.15 against a median of $0.043, with Alexandria 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.
In the upper part of Canada’s range: 15% of its 2,611 towns expect more damage than Katimavik-Hazeldean.
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).
Only shaking damage to buildings in Katimavik-Hazeldean is counted; landslides, liquefaction, tsunami and fire after a quake aren’t.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Radon about average around Katimavik-Hazeldean: 6.2% over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Source area for radon tests: the City of Ottawa Health Unit
Katimavik-Hazeldean’s area, at 6.2%, is close to the 6.6% of the typical Canadian town.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Katimavik-Hazeldean’s area, at 6.2%, is above the median in Ontario (4%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Between 5% and 10% of tests over the guideline: Katimavik-Hazeldean, and 37% of Canada’s 2,611 towns; 26% are higher.
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.
Radon varies from house to house in Katimavik-Hazeldean, so the survey is a reason to test, not a result for yours.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Katimavik-Hazeldean
Environment and Climate Change Canada issues the weather alerts for Katimavik-Hazeldean; 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. |
Smoke and fire warnings for Katimavik-Hazeldean come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Katimavik-Hazeldean
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Katimavik-Hazeldean | Low | $0.15 | 6.2% | None listed |
| Beaverbrook 6,762 · 2.2 km | Low | $0.15 | 6.2% | None listed |
| Glen Cairn 14,020 · 2.5 km | Low | $0.15 | 6.2% | None listed |
| Kanata Lakes 19,861 · 2.9 km | Low | $0.15 | 6.2% | None listed |
| Bridlewood - Emerald Meadows 25,824 · 3.8 km | Low | $0.15 | 6.2% | None listed |
| Stittsville East 10,482 · 3.9 km | Low | $0.15 | 6.2% | None listed |
| Stittsville North 13,331 · 4.4 km | Low | $0.15 | 6.2% | None listed |
Fire is no heavier anywhere nearby than around Katimavik-Hazeldean (low), with Beaverbrook next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Katimavik-Hazeldean faces
Practical steps for Katimavik-Hazeldean’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.
- Drop, cover and hold on.
- Strap the water heater down.
- Keep 72 hours of supplies.
- Has it had a radon test?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
- Is earthquake cover included?
What this data can and can’t tell you
- Wildfire counts one way. For Katimavik-Hazeldean, 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. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Katimavik-Hazeldean is its health region’s, the survey’s design unit.
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Katimavik-Hazeldean’s census subdivision (a neighbourhood shows its city’s).
- Flood studies aren’t flood zones. NRCan’s inventory says where flood mapping exists, not where water goes; the map’s owner is the authority for Katimavik-Hazeldean.
Questions about flooding and hazards in Katimavik-Hazeldean
Is Katimavik-Hazeldean at risk of wildfire?
Some, but Katimavik-Hazeldean’s low band (0.1% of nearby land burned since 1986, latest 2014) is short of the level that counts.
Is radon a problem in Katimavik-Hazeldean?
The area’s survey found 6.2% of 64 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Katimavik-Hazeldean.
How is Katimavik-Hazeldean’s Hazard risk Grade worked out?
Katimavik-Hazeldean’s Hazard risk grade is C+, built on earthquakes and radon with a one-sided wildfire input.
How big is the earthquake risk in Katimavik-Hazeldean?
NRCan’s model expects shaking to cost buildings in Katimavik-Hazeldean $0.15 a year for every $1,000 of their value, on average over many years.
Does Katimavik-Hazeldean flood?
The inventory has 0 studies for Katimavik-Hazeldean, and an empty list isn’t a clean bill: the municipality holds any flood maps.
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).