Greenfield faces fewer hazards than 98% of Canadian towns
Fire has left almost no mark near Greenfield: 0% of the land within 25 km since 1986, 0.000% a year. Shaking is less of a worry than in most places, at $0.013 a year per $1,000 of building value ($0.030 typical). In Health Canada’s survey, just 1.4% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Greenfield grades A+ for hazard risk, with wildfire counted against it.
What stands out about Greenfield’s hazards
Four national sources, each read for Greenfield: earthquakes, radon, past fires and flood studies.
What Greenfield faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Greenfield grades A+ for hazard risk
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Greenfield 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: The seismic figure is a long-run average from NRCan’s model, not a prediction. Only 73 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.
Few fires near Greenfield: 0% within 5 km, 0% within 25 km
Fires mapped since 1986 around where Greenfield’s residents live, and the fuel next to their homes.
The yearly burn rate around Greenfield is 0.000%, low beside 0.000% for the typical Canadian town.
The 5 km ring around Greenfield’s homes is clear of burns since 1986, the nearest 23 km out.
Forest makes up 1.3% of the land within 5 km of Greenfield and 0.5% 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 Alberta · highest of 478
Of the 478 towns in Alberta, 386 have a burn rate that rounds to zero, Greenfield 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.
Greenfield shares the low band with 92% of Canada’s 2,610 towns, its burn rate rounding to nothing; 7.5% burn faster.
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.
The flood map inventory lists nothing for Greenfield
Flood studies whose area touches Greenfield, from NRCan’s inventory, each linked to its owner.
Nationally, Greenfield has no listed flood study; the municipality is the place to ask.
Towns with a flood study on file
Mapping in Alberta reaches 46% of towns, below the 58% across Canada, and not Greenfield.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood is shown here, never graded: a study says where a map exists, not how many of Greenfield’s homes stand in a flood zone.
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.”
Little shaking expected in Greenfield: $0.013 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.
Greenfield’s $0.013 is a fraction of the typical town’s $0.030 (0.4 times as much): quiet ground by Canadian standards.
Greenfield doesn’t get its own earthquake risk figures; the ones here come from the city of Edmonton.
Shaking damage a year per $1,000 of building value
About level with the typical town in Alberta: Greenfield’s $0.013 against $0.013; Black Diamond reaches $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.
Toward the quiet end of Canada’s range: 75% of its 2,611 towns sit above Greenfield.
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 Greenfield’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).
Radon runs low around Greenfield: 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. · Area-wide: radon tests, counted over the Capital Health
At 1.4% over the guideline, the area around Greenfield is under the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Greenfield’s area, at 1.4%, is below the median in Alberta (7.5%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Greenfield 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.
The survey sampled homes around Greenfield; it can’t tell you your basement’s level.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Greenfield
Environment and Climate Change Canada issues the weather alerts for Greenfield; 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 Greenfield come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Greenfield’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Greenfield | Low | $0.013 | 1.4% | None listed |
| Sweet Grass 2,616 · 0.5 km | Low | $0.013 | 1.4% | None listed |
| Royal Gardens 3,392 · 1.1 km | Low | $0.013 | 1.4% | Yes |
| Blue Quill 4,567 · 1.1 km | Low | $0.013 | 1.4% | None listed |
| Duggan 6,247 · 1.2 km | Low | $0.013 | 1.4% | None listed |
| Westbrook Estates 2,838 · 1.6 km | Low | $0.013 | 1.4% | Yes |
| Ermineskin 7,483 · 1.8 km | Low | $0.013 | 1.4% | None listed |
Fire is no heavier anywhere nearby than around Greenfield (low), with Sweet Grass next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Greenfield faces
What to do about the hazards Greenfield 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. Wildfire is read from the national burned-area record around Greenfield’s homes since 1986, a history of fire that may lower Risk but never raises it.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Greenfield 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 Greenfield until then.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Greenfield’s figure is its subdivision’s.
Questions about flooding and hazards in Greenfield
How big is the earthquake risk in Greenfield?
Expected earthquake damage in Greenfield comes to $0.013 a year for each $1,000 that buildings are worth.
How is Greenfield’s Hazard risk Grade worked out?
Hazard risk gives Greenfield A+, weighing earthquakes and radon and counting wildfire only against it.
Does Greenfield flood?
Nothing is listed for Greenfield on the national inventory (0); local maps may still exist with the municipality.
Is Greenfield at risk of wildfire?
Less than most of Canada: 0% of the land within 25 km of Greenfield has burned since 1986, the last in 2023, a low band that leaves Risk alone.
Is radon a problem in Greenfield?
In Health Canada’s survey, 1.4% of 73 homes tested in Greenfield’s area were above 200 Bq/m³, though only a test tells you about one house.
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).