Hazard risk in Ozerna is lower than in 98% of Canadian towns
Fire has left almost no mark near Ozerna: 0% of the land within 25 km since 1986, 0.000% a year. Earthquakes matter little: NRCan’s model puts building losses at $0.013 a year per $1,000 of value, against $0.030 for the typical town. In Health Canada’s survey, just 1.4% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Ozerna grades A+ for hazard risk, with wildfire counted against it.
What stands out about Ozerna’s hazards
For Ozerna, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Ozerna faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Ozerna grades A+ for hazard risk
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Ozerna with little fire nearby would get no credit for it.
Its place: #11 of 474 in Alberta and #22 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Only 73 homes were tested in the survey area, so the radon share is rough. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Wildfire is rare near Ozerna: 0% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where Ozerna’s residents live, and the fuel next to their homes.
At 0.000% of the land a year, Ozerna’s burn rate is in the low band; the typical Canadian town sees 0.000%.
Forest fuel is scarce around Ozerna: 0% of the land within 5 km, 0.3% 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 Alberta · highest of 478
Of the 478 towns in Alberta, 386 have a burn rate that rounds to zero, Ozerna among them; Wainwright leads at 1.43% a year.
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.
92% of Canada’s 2,610 towns are in the low band and 7.5% above it; Ozerna is among the many where the yearly burn rate 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.
No flood study is listed for Ozerna
Flood studies whose area touches Ozerna, from NRCan’s inventory, each linked to its owner.
Nationally, Ozerna has no listed flood study; the municipality is the place to ask.
Towns with a flood study on file
No study touches Ozerna; in Alberta, 46% of towns have one, below Canada’s 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 Ozerna 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.”
Earthquakes cost buildings in Ozerna just $0.013 per $1,000 a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
Ozerna’s $0.013 is a fraction of the typical town’s $0.030 (0.4 times as much): quiet ground by Canadian standards.
Ozerna shares its earthquake risk numbers with the rest of the city of Edmonton.
Shaking damage a year per $1,000 of building value
Typical for its province: Ozerna at $0.013 beside a median in Alberta of $0.013, with Black Diamond on top at $0.048.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Earthquakes cost less around Ozerna than in 75% of Canada’s 2,611 towns.
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).
What a quake does after the shaking, fire, landslides, tsunami, falls outside NRCan’s figure for Ozerna.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Radon runs low around Ozerna: 1.4% of tested homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
Fewer homes than usual test high around Ozerna: 1.4% against 6.6% for the typical Canadian town. Ozerna doesn’t get its own radon tests figures; the ones here come from the Capital Health.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Against the typical town in Alberta (7.5%), the area around Ozerna has fewer high tests: 1.4%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Ozerna 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.
Health Canada advises testing every home, Ozerna’s included, whatever the area’s figure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Ozerna
Alerts for Ozerna 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 Ozerna 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)
How Ozerna’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Ozerna | Low | $0.013 | 1.4% | None listed |
| Mayliewan 4,259 · 0.9 km | Low | $0.013 | 1.4% | None listed |
| Matt Berry 4,093 · 1.1 km | Low | $0.013 | 1.4% | None listed |
| Kilkenny 5,481 · 1.4 km | Low | $0.013 | 1.4% | None listed |
| Belle Rive 3,946 · 1.4 km | Low | $0.013 | 1.4% | None listed |
| Crystallina Nera East 5,566 · 1.5 km | Low | $0.013 | 1.4% | None listed |
| McConachie 10,450 · 1.6 km | Low | $0.013 | 1.4% | None listed |
Among its neighbours Ozerna has the most fire on record (low); Mayliewan follows (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Ozerna faces
What to do about the hazards Ozerna 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?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Wildfire counts one way. For Ozerna, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
- Flood studies aren’t flood zones. The flood inventory points to maps; it is incomplete and not the official source, so ask the municipality about any street in Ozerna.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Ozerna takes its 2007 health region’s share.
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Ozerna’s census subdivision (a neighbourhood shows its city’s).
Questions about flooding and hazards in Ozerna
Is radon a problem in Ozerna?
In Health Canada’s survey, 1.4% of 73 homes tested in Ozerna’s area were above 200 Bq/m³, though only a test tells you about one house.
How big is the earthquake risk in Ozerna?
Expected earthquake damage in Ozerna comes to $0.013 a year for each $1,000 that buildings are worth.
How is Ozerna’s Hazard risk Grade worked out?
Hazard risk gives Ozerna A+, weighing earthquakes and radon and counting wildfire only against it.
Does Ozerna flood?
Nothing is listed for Ozerna on the national inventory (0); local maps may still exist with the municipality.
Is Ozerna at risk of wildfire?
No meaningful wildfire history near Ozerna: 0% of nearby land since 1986, band low.
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).