Photo: Matthew ave jor · CC BY-SA 3.0Ste. Anne is on Canada’s flood inventory: 1 listed, led by Manitoba Infrastructure
The burn rate around Ste. Anne is 0.23% a year (5.9% of the land within 25 km since 1986), a moderate band. Earthquakes matter little: NRCan’s model puts building losses at $0.005 a year per $1,000 of value, against $0.030 for the typical town. In Health Canada’s survey, 9.7% of homes tested in Ste. Anne’s area exceeded 200 Bq/m³, close to the typical 6.6%. Hazard risk gives Ste. Anne a grade of A−; its wildfire band pulls it down.
What stands out about Ste. Anne’s hazards
Four national sources, each read for Ste. Anne: earthquakes, radon, past fires and flood studies.
What Ste. Anne faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Ste. Anne: A−
Earthquake risk and radon make Ste. Anne’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #1 of 185 in Manitoba and #635 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Small fires and grass fires are largely missing from the national burned-area record.
Fire reaches the land around Ste. Anne: 11% within 5 km, 5.9% within 25 km
Past fire around Ste. Anne’s homes, from the national burned-area record, with the fuel within 5 km.
At 0.23% of the land a year, Ste. Anne’s burn rate is moderate; the typical Canadian town sees 0.000%.
13% of the land within 25 km of Ste. Anne is forest fuel, yet only 0.7% within 5 km of its 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 Manitoba · highest of 189
Ste. Anne ranks 8th of the 189 towns in Manitoba for burn rate, at 0.23% a year; Flin Flon (Part) leads with 1.68%.
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.
Moderate puts Ste. Anne above most of Canada’s 2,610 towns, yet 2.1% rank high or very high and 5.4% share its band.
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.
Ste. Anne is on the flood map inventory: 1 study, by Manitoba Infrastructure
What Canada’s Flood Map Inventory lists for Ste. Anne: who studied flooding and where to see their maps.
Manitoba Infrastructure holds the flood mapping that covers Ste. Anne (2020), linked below.
| Study | By | Year | Status |
|---|---|---|---|
| Seine River | Manitoba Infrastructure | 2020 | final · not public |
Towns with a flood study on file
Flood maps are thinner in Manitoba, 18% of towns against 58% nationally, but Ste. Anne has one.
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 Ste. Anne.
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.
Earthquakes cost buildings in Ste. Anne just $0.005 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Shaking costs the typical town $0.030 a year; in Ste. Anne it is only $0.005, 0.2 times as much.
Shaking damage a year per $1,000 of building value
Earthquake risk around Ste. Anne ($0.005) matches the middle in Manitoba ($0.006), far from Virden’s $0.007.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
At the bottom of Canada’s range, Ste. Anne has 96% of the 2,611 towns above it.
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).
The model counts damage to Ste. Anne’s buildings and their occupants from shaking only: not liquefaction, landslides, tsunami or fires after a quake.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
9.7% of homes tested around Ste. Anne are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
The survey area of Ste. Anne reads 9.7%, a shade from the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Ste. Anne’s area, at 9.7%, is close to the median in Manitoba (12%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
37% of Canada’s 2,611 towns share Ste. Anne’s band of 5 to 10%; 26% sit 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.
The share describes the area, not a house: in Ste. Anne as anywhere, test to be sure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Not measured by town: radon tests (the South Eastman health region)
Weather and fire alerts for Ste. Anne
Alerts for Ste. Anne 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 Ste. Anne 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 Ste. Anne
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
The heaviest fire record nearby is Ste. Anne’s, high to Ste. Anne’s moderate.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Ste. Anne faces
Practical steps for Ste. Anne’s hazards, most pressing first.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- 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.
- Has it had a radon test?
- Check the address on the flood map.
- How close is the forest edge?
- Are flood and wildfire insured?
What this data can and can’t tell you
- 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 Ste. Anne’s.
- Radon is a survey. The radon share comes from about 14,000 long-term home tests in 2009–2011, pooled for now by the 2007 health region Ste. Anne sits in.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Ste. Anne’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. A study’s area can be a whole watershed or province, so being on the inventory says a map exists, not that a home in Ste. Anne floods.
Questions about flooding and hazards in Ste. Anne
How is Ste. Anne’s Hazard risk Grade worked out?
Hazard risk gives Ste. Anne A−, weighing earthquakes and radon and counting wildfire only against it.
How big is the earthquake risk in Ste. Anne?
NRCan’s model expects shaking to cost buildings in Ste. Anne $0.005 a year for every $1,000 of their value, on average over many years.
Is Ste. Anne at risk of wildfire?
Some, but Ste. Anne’s moderate band (5.9% of nearby land burned since 1986, latest 2024) is short of the level that counts.
Does Ste. Anne flood?
Ste. Anne’s area has been studied for flooding, and the owner’s map shows which streets lie in a zone; the grade leaves flood out.
Is radon a problem in Ste. Anne?
The area’s survey found 9.7% of 113 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Ste. Anne.
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).