Photo: Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center · Public domainHazards in Evergreen: wildfire low, radon over the guideline in 8.1% of tested homes
Little of the land around Evergreen has burned: 0% within 25 km since 1986, or 0.001% a year. Seismic risk in Evergreen sits near the middle: $0.023 of expected damage per $1,000 of buildings a year, the typical town $0.030. Hazard risk gives Evergreen a grade of B+; its wildfire band pulls it down.
What stands out about Evergreen’s hazards
Four national sources, each read for Evergreen: earthquakes, radon, past fires and flood studies.
What Evergreen faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Evergreen grades B+ for hazard risk
Seismic risk and radon set Evergreen’s grade, wildfire can drag it down, and flood mapping stays out of it.
Its place: #282 of 474 in Alberta and #1,102 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Small fires and grass fires are largely missing from the national burned-area record.
Little of the land around Evergreen has burned: 0.1% within 5 km, 0% within 25 km since 1986
Fires mapped since 1986 around where Evergreen’s residents live, and the fuel next to their homes.
Around Evergreen fire takes 0.001% of the land in a typical year, the typical Canadian town 0.000%, which is low.
Around Evergreen the forest is thin or far off: 2.2% of the land within 5 km and 3.8% 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 Alberta · highest of 478
The land around Evergreen burns at 0.001% a year, the 79th highest rate of 478 towns in Alberta; Wainwright tops it at 1.43%.
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.
7.5% of Canada’s 2,610 towns burn fast enough to rank moderate or above; Evergreen stays low, with 92%.
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 Evergreen
Flood studies whose area touches Evergreen, from NRCan’s inventory, each linked to its owner.
The inventory has nothing for Evergreen, but a local or conservation-authority map may still exist.
Towns with a flood study on file
Only 46% of towns in Alberta have a flood study, short of Canada’s 58%, and Evergreen is not 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 Evergreen.
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 Evergreen $0.023 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.
Evergreen’s $0.023 is close to the typical town’s $0.030 (0.8 times as much).
Evergreen doesn’t get its own earthquake risk figures; the ones here come from the city of Calgary.
Shaking damage a year per $1,000 of building value
Above the middle in Alberta: Evergreen’s $0.023 against a median of $0.013, with Black Diamond highest 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.
Neither high nor low for Canada: 54% of the 2,611 towns expect more damage than Evergreen.
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 Evergreen’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 about average around Evergreen: 8.1% over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
Around Evergreen, 8.1% of tested homes topped the guideline, near the typical Canadian town’s 6.6%. Nobody publishes radon tests for Evergreen alone, so this card uses the figure for the Calgary Health Region.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The typical town in Alberta has 7.5% over 200 Bq/m³; Evergreen’s area has 8.1%, much the same.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Radon tops the guideline in a modest share of homes around Evergreen, a band holding 37% of Canada’s 2,611 towns; 26% rank above.
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 Evergreen; 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 Evergreen
Alerts for Evergreen 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 Evergreen 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 Evergreen’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Evergreen | Low | $0.023 | 8.1% | None listed |
| Millrise 6,754 · 2.0 km | Low | $0.023 | 8.1% | None listed |
| Bridlewood 12,547 · 2.1 km | Low | $0.023 | 8.1% | Yes |
| Fish Creek Park 9,045 · 2.2 km | Low | $0.023 | 8.1% | Yes |
| Shawnessy 9,696 · 2.6 km | Low | $0.023 | 8.1% | Yes |
| Somerset 8,416 · 2.9 km | Low | $0.023 | 8.1% | Yes |
| Woodbine 8,075 · 2.9 km | Low | $0.023 | 8.1% | None listed |
Fire is no heavier anywhere nearby than around Evergreen (low), with Bridlewood next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Evergreen faces
Practical steps for Evergreen’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?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Evergreen is its health region’s, the survey’s design unit.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Evergreen’s homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
- 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 Evergreen.
- 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 Evergreen’s.
Questions about flooding and hazards in Evergreen
Is Evergreen at risk of wildfire?
Not much by Canadian standards: Evergreen’s band is low, with 0% of the land within 25 km burned since 1986 (last in 2021), so wildfire doesn’t change its grade.
How big is the earthquake risk in Evergreen?
Expected earthquake damage in Evergreen comes to $0.023 a year for each $1,000 that buildings are worth.
Is radon a problem in Evergreen?
8.1% of the 86 homes Health Canada tested around Evergreen topped the guideline; your own house needs its own test.
Does Evergreen flood?
No study on Canada’s Flood Map Inventory covers Evergreen (0), which doesn’t mean it has never been mapped, so ask the municipality.
How is Evergreen’s Hazard risk Grade worked out?
Evergreen’s Hazard risk grade is B+, built on earthquakes and radon with a one-sided wildfire input.
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).