Photo: Andre Carrotflower · CC BY-SA 4.0Sables-Spanish Rivers faces fewer hazards than 91% of Canadian towns
The national fire record shows next to nothing around Sables-Spanish Rivers, 0% of the land within 25 km since 1986 (0.000% a year). Shaking is less of a worry than in most places, at $0.010 a year per $1,000 of building value ($0.030 typical). In Health Canada’s survey, 5.2% of homes tested in Sables-Spanish Rivers’ area exceeded 200 Bq/m³, close to the typical 6.6%. Hazard risk gives Sables-Spanish Rivers a grade of A, from earthquakes and radon alone.
What stands out about Sables-Spanish Rivers’s hazards
Four national sources, each read for Sables-Spanish Rivers: earthquakes, radon, past fires and flood studies.
What Sables-Spanish Rivers faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Sables-Spanish Rivers: A
Seismic risk and radon set Sables-Spanish Rivers’ grade, wildfire can drag it down, and flood mapping stays out of it.
Its place: #41 of 866 in Ontario and #345 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.
Wildfire is rare near Sables-Spanish Rivers: 0% of the land within 25 km burned since 1986, 0% within 5 km
Past fire around Sables-Spanish Rivers’ homes, from the national burned-area record, with the fuel within 5 km.
A burn rate of 0.000% a year keeps Sables-Spanish Rivers in the low band (the typical Canadian town: 0.000%).
Forest thickens with distance from Sables-Spanish Rivers: 35% of the land within 5 km, 40% 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 Ontario · highest of 871
Among the 871 towns in Ontario, Sioux Lookout burns fastest (0.16% a year); Sables-Spanish Rivers is with the 638 near zero.
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.
Sables-Spanish Rivers shares the low band with 92% of Canada’s 2,610 towns, its burn rate rounding to nothing; 7.5% burn faster.
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 Sables-Spanish Rivers
What Canada’s Flood Map Inventory lists for Sables-Spanish Rivers: who studied flooding and where to see their maps.
No flood study on the national inventory covers Sables-Spanish Rivers; ask the municipality, which is the authority for its flood maps.
Towns with a flood study on file
69% of towns in Ontario have a flood study, more than Canada’s 58%; Sables-Spanish Rivers is not yet one of them.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood is shown here, never graded: a study says where a map exists, not how many of Sables-Spanish Rivers’ homes stand in a flood zone.
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 Sables-Spanish Rivers: $0.010 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
At $0.010 per $1,000, Sables-Spanish Rivers carries 0.3 times the typical Canadian town’s earthquake risk ($0.030): low.
Shaking damage a year per $1,000 of building value
Sables-Spanish Rivers’ $0.010 sits under the median in Ontario, $0.043, and well under Alexandria’s $0.21.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Sables-Spanish Rivers is in the lower part of Canada’s range for earthquake risk; 86% of the 2,611 towns 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 Sables-Spanish Rivers’ 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 Sables-Spanish Rivers: 5.2% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Measured across the Sudbury and District Health Unit: radon tests
At 5.2% over the guideline, the area around Sables-Spanish Rivers is about level with the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Sables-Spanish Rivers’ area, at 5.2%, is above the median in Ontario (4%), and 1% 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.
Between 5% and 10% of tests over the guideline: Sables-Spanish Rivers, and 37% of Canada’s 2,611 towns; 26% are 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.
Basements, soil and how a house is sealed decide its radon, so in Sables-Spanish Rivers only a test can say.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Sables-Spanish Rivers
Environment and Climate Change Canada issues the weather alerts for Sables-Spanish Rivers; 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 Sables-Spanish Rivers 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 Sables-Spanish Rivers’ neighbours compare on hazards
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
Sables-Spanish Rivers’ low band tops its neighbours; Sagamok is next (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Sables-Spanish Rivers faces
Practical steps for Sables-Spanish Rivers’ 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
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Sables-Spanish Rivers’ figure is its subdivision’s.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Sables-Spanish Rivers’ homes since 1986, a history of fire that may lower Risk but never raises it.
- 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 Sables-Spanish Rivers.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Sables-Spanish Rivers takes its 2007 health region’s share.
Questions about flooding and hazards in Sables-Spanish Rivers
How is Sables-Spanish Rivers’s Hazard risk Grade worked out?
Hazard risk gives Sables-Spanish Rivers A, weighing earthquakes and radon and counting wildfire only against it.
Is Sables-Spanish Rivers at risk of wildfire?
The burned-area record shows next to nothing around Sables-Spanish Rivers (0% within 25 km since 1986), so its band is low.
Is radon a problem in Sables-Spanish Rivers?
5.2% of the 97 homes Health Canada tested around Sables-Spanish Rivers topped the guideline; your own house needs its own test.
How big is the earthquake risk in Sables-Spanish Rivers?
In NRCan’s seismic model, Sables-Spanish Rivers’ buildings lose $0.010 per $1,000 of value in an average year.
Does Sables-Spanish Rivers flood?
No study on Canada’s Flood Map Inventory covers Sables-Spanish Rivers (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).