Photo: The original uploader was Emdx at French Wikipedia . · CC BY-SA 2.0 caA quiet place for hazards: low wildfire, little earthquake risk, and 4.7% of tested homes over the radon guideline in Uashat 27’s area
Burn scars are few around Uashat 27, with 1.7% of the land within 25 km touched by fire since 1986 (0.04% a year). Seismic risk runs high: $0.070 of expected damage per $1,000 of buildings a year, the typical town $0.030. Uashat 27 grades B for hazard risk, with wildfire counted against it.
What stands out about Uashat 27’s hazards
Four national sources, each read for Uashat 27: earthquakes, radon, past fires and flood studies.
What Uashat 27 faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Uashat 27: B
Seismic risk and radon set Uashat 27’s grade, wildfire can drag it down, and flood mapping stays out of it.
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.
Wildfire is rare near Uashat 27: 1.7% of the land within 25 km burned since 1986, 0.3% within 5 km
Fires mapped since 1986 around where Uashat 27’s residents live, and the fuel next to their homes.
The yearly burn rate around Uashat 27 is 0.04%, low beside 0.000% for the typical Canadian town.
There is forest near Uashat 27’s homes (57% within 5 km) and more of it further out (84% 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 Quebec · highest of 514
Mistissini burns fastest in Quebec at 0.31% a year; Uashat 27, at 0.04%, ranks 11th of 514.
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; Uashat 27 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 Uashat 27
Flood studies whose area touches Uashat 27, from NRCan’s inventory, each linked to its owner.
The inventory has nothing for Uashat 27, but a local or conservation-authority map may still exist.
Towns with a flood study on file
Only 45% of towns in Quebec have a flood study, short of Canada’s 58%, and Uashat 27 is not among 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 Uashat 27.
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 Uashat 27: $0.070 per $1,000 of buildings a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
Roughly 2.3 times the typical $0.030: Uashat 27’s $0.070 marks real seismic exposure.
Shaking damage a year per $1,000 of building value
At $0.070, Uashat 27 is below the typical town in Quebec ($0.14); La Pocatière is highest at $0.48.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Uashat 27 sits above most of Canada’s 2,611 towns on earthquake risk; 28% are higher.
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 Uashat 27’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).
Some radon around Uashat 27: 4.7% of area homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
4.7% of tested homes around Uashat 27 were over the guideline, much like the typical Canadian town at 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon runs lower around Uashat 27 than in most towns in Quebec: 4.7% against 8.2%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
63% of Canada’s 2,611 towns have a higher share of homes over 200 Bq/m³ than Uashat 27’s band, which holds 37%.
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.
A survey sample isn’t a map: any home in Uashat 27 can be high, and a three-month test is the only way to know.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Radon tests: the Cote-Nord health region
Weather and fire alerts for Uashat 27
Environment and Climate Change Canada issues the weather alerts for Uashat 27; 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 Uashat 27 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 Uashat 27’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Uashat 27 | Low | $0.070 | 4.7% | None listed |
| Sept-Îles 24,483 · 1.6 km | Moderate | $0.050 | 4.7% | None listed |
| Maliotenam 1,683 · 14 km | Moderate | $0.045 | 4.7% | None listed |
The heaviest fire record nearby is Maliotenam’s, moderate to Uashat 27’s low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Uashat 27 faces
Practical steps for Uashat 27’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
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Uashat 27’s homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
- 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 Uashat 27’s.
- 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 Uashat 27.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Uashat 27 takes its 2007 health region’s share.
Questions about flooding and hazards in Uashat 27
How is Uashat 27’s Hazard risk Grade worked out?
Uashat 27 grades B for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
How big is the earthquake risk in Uashat 27?
About $0.070 a year per $1,000 of building value, NRCan’s long-run expectation for Uashat 27.
Is radon a problem in Uashat 27?
The area’s survey found 4.7% of 107 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Uashat 27.
Does Uashat 27 flood?
The inventory has 0 studies for Uashat 27, and an empty list isn’t a clean bill: the municipality holds any flood maps.
Is Uashat 27 at risk of wildfire?
Some, but Uashat 27’s low band (1.7% of nearby land burned since 1986, latest 2025) is short of the level that counts.
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).