Photo: Dr Wilson · CC BY-SA 3.0Saint-Isidore faces more hazards than 95% of Canadian towns
With 0.29% of the land around it burning each year, Saint-Isidore sits in the high wildfire band (11% within 25 km since 1986). NRCan expects $0.046 of shaking damage a year per $1,000 of buildings in Saint-Isidore, near the typical $0.030. Radon is higher than usual: 40% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Hazard risk gives Saint-Isidore a grade of D−; its wildfire band pulls it down.
What stands out about Saint-Isidore’s hazards
Four national sources, each read for Saint-Isidore: earthquakes, radon, past fires and flood studies.
What Saint-Isidore faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Saint-Isidore: D−
Two inputs always count for Saint-Isidore, earthquakes and radon; the third, wildfire, counts only against a town.
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 country: 11% of the land within 25 km of Saint-Isidore has burned since 1986, 0.4% within 5 km
Past fire around Saint-Isidore’s homes, from the national burned-area record, with the fuel within 5 km.
High: the land around Saint-Isidore burns at 0.29% a year, where the typical Canadian town sees 0.000%.
Near or far, forest fuel covers a similar share around Saint-Isidore: 83% within 5 km and 82% 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 New Brunswick · highest of 61
Of the 61 towns in New Brunswick, the land around Saint-Isidore burns fastest, 0.29% a year against 0.28% for Tracadie.
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.
Saint-Isidore is one of the few of Canada’s 2,610 towns in the high band (1.9%); 0.2% rank very high.
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.
Saint-Isidore is on the flood map inventory: 1 study, by Service New Brunswick - GeoNB
What Canada’s Flood Map Inventory lists for Saint-Isidore: who studied flooding and where to see their maps.
Service New Brunswick - GeoNB holds the flood mapping that covers Saint-Isidore (2020), linked below.
| Study | By | Year | Status |
|---|---|---|---|
| Inland Flood Mapping in New Brunswick and Updated Sea-Level Rise and Flooding Estimates for New Brunswick Coastal Sections 2020 | Service New Brunswick - GeoNB | 2020 | final |
Towns with a flood study on file
Its flood study puts Saint-Isidore with 93% of towns in New Brunswick; Canada’s share is 58%.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood mapping is shown for Saint-Isidore to be opened and checked, never turned into a grade.
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.
Expected shaking damage in Saint-Isidore: $0.046 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Saint-Isidore’s $0.046 is close to the typical town’s $0.030 (1.5 times as much).
Shaking damage a year per $1,000 of building value
Earthquake risk in New Brunswick peaks in St. Stephen ($0.16); Saint-Isidore, at $0.046, sits above the median of $0.036.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Saint-Isidore sits above most of Canada’s 2,611 towns on earthquake risk; 31% 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).
Roads, pipes and bridges aren’t in Saint-Isidore’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).
40% of homes tested around Saint-Isidore are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Radon tests for the Region 6 health region
Radon runs above the typical Canadian town (6.6%) in Saint-Isidore’s area, at 40%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
More homes top the guideline around Saint-Isidore (40%) than in the typical town in New Brunswick (20%); 17% went over 600.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Saint-Isidore is in the top band, 30% or more, with just 1.5% of Canada’s towns.
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 Saint-Isidore; 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 Saint-Isidore
Alerts for Saint-Isidore 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 Saint-Isidore 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)
Hazards in the places around Saint-Isidore
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Saint-Isidore | High | $0.046 | 40% | Yes |
| Tracadie 16,453 · 10 km | High | $0.042 | 40% | Yes |
| Paquetville 2,225 · 17 km | Moderate | $0.043 | 40% | Yes |
Tracadie (high) has the heaviest fire record of Saint-Isidore’s neighbours, and Saint-Isidore (high) matches or beats it.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Saint-Isidore faces
What to do about the hazards Saint-Isidore faces, and what to ask before you buy.
- 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
- 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 Saint-Isidore until then.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Saint-Isidore’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; Saint-Isidore’s figure is its subdivision’s.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Saint-Isidore without grading them.
Questions about flooding and hazards in Saint-Isidore
Does Saint-Isidore flood?
A flood study covers Saint-Isidore on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
How is Saint-Isidore’s Hazard risk Grade worked out?
Saint-Isidore grades D− for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is radon a problem in Saint-Isidore?
In Health Canada’s survey, 40% of 115 homes tested in Saint-Isidore’s area were above 200 Bq/m³, though only a test tells you about one house.
Is Saint-Isidore at risk of wildfire?
Yes, by Canadian standards: Saint-Isidore’s band is high, with 11% of the land within 25 km burned since 1986 (last in 2025), so wildfire counts against its Risk grade.
How big is the earthquake risk in Saint-Isidore?
In NRCan’s seismic model, Saint-Isidore’s buildings lose $0.046 per $1,000 of value in an average year.
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).