Photo: Chaughten · CC BY-SA 3.0Hazard risk in Nain is lower than in 98% of Canadian towns
Wildfire is rare near Nain: 0.1% of the land within 25 km has burned since 1986, a burn rate of 0.002% a year. Seismic risk runs low: $0.010 of expected damage per $1,000 of buildings a year, the typical town $0.030. Radon is lower than usual: 3% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Hazard risk gives Nain a grade of A+; its wildfire band pulls it down.
What stands out about Nain’s hazards
Four national sources, each read for Nain: earthquakes, radon, past fires and flood studies.
What Nain faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Nain grades A+ for hazard risk
Earthquake risk and radon make Nain’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
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 Nain: 0.1% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where Nain’s residents live, and the fuel next to their homes.
The yearly burn rate around Nain is 0.002%, low beside 0.000% for the typical Canadian town.
No fire has burned within 5 km of Nain’s homes since 1986; the nearest burn is 23 km away.
45% of the land within 5 km of Nain is forest fuel, close to the 48% 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 Newfoundland and Labrador · highest of 33
In the lower half in Newfoundland and Labrador: Nain at 0.002% a year, 25th of 33, far from Labrador City’s 0.43%.
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.
The low band takes in 92% of Canada’s 2,610 towns, Nain among them, though its rate is above zero; 7.5% rank higher.
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 Nain
Flood studies whose area touches Nain, from NRCan’s inventory, each linked to its owner.
The inventory has nothing for Nain, but a local or conservation-authority map may still exist.
Towns with a flood study on file
Missing from a well-mapped province: Nain has no study, where 59% of towns in Newfoundland and Labrador have one against 58% nationally.
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 Nain 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.”
Little shaking expected in Nain: $0.010 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.
At $0.010 per $1,000, Nain carries 0.3 times the typical Canadian town’s earthquake risk ($0.030): low.
Shaking damage a year per $1,000 of building value
Neither high nor low in Newfoundland and Labrador: Nain’s $0.010 sits by the median of $0.011, while Holyrood reaches $0.015.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Most of Canada’s 2,611 towns (86%) face more earthquake damage than Nain.
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 Nain’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).
3% of homes tested around Nain are over the radon guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Radon tests for the Labrador-Grenfell Regional Integrated Health Auth health region
A lower share than most: 3% of tested homes around Nain, the typical Canadian town 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Nain’s area, at 3%, is below the median in Newfoundland and Labrador (4%), though 0.5% of its tests passed 600 Bq/m³.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Under 5% puts Nain with 37% of Canada’s 2,611 towns; 63% have more high tests.
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 Nain; 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 Nain
Alerts for Nain 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. |
Evacuation orders for Nain come from the municipality or the province, while CWFIS maps fire danger every day.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Get ready for what Nain faces
Practical steps for Nain’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. Wildfire is read from the national burned-area record around Nain’s homes since 1986, a history of fire that may lower Risk but never raises it.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Nain’s figure is its subdivision’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 Nain.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Nain takes its 2007 health region’s share.
Questions about flooding and hazards in Nain
Is Nain at risk of wildfire?
Not much by Canadian standards: Nain’s band is low, with 0.1% of the land within 25 km burned since 1986 (last in 2003), so wildfire doesn’t change its grade.
Is radon a problem in Nain?
3% of the 201 homes Health Canada tested around Nain topped the guideline; your own house needs its own test.
How big is the earthquake risk in Nain?
Expected earthquake damage in Nain comes to $0.010 a year for each $1,000 that buildings are worth.
How is Nain’s Hazard risk Grade worked out?
Hazard risk gives Nain A+, weighing earthquakes and radon and counting wildfire only against it.
Does Nain flood?
No study on Canada’s Flood Map Inventory covers Nain (0), which doesn’t mean it has never been mapped, so ask the municipality.
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).