Photo: WabbitWanderer from London, Canada · CC BY-SA 2.0A flood study covers Fall River: 2 on the national inventory, the newest from Halifax Regional Municipality
Fire seldom reaches Fall River: since 1986, 1.8% of the land within 25 km has burned (0.05% a year). Shaking is about as much of a worry in Fall River as in most places, at $0.018 a year per $1,000 of building value ($0.030 typical). In Health Canada’s survey, 13% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Hazard risk gives Fall River a grade of B−; its wildfire band pulls it down.
What stands out about Fall River’s hazards
For Fall River, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Fall River faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Fall River grades B− for hazard risk
Earthquake risk and radon make Fall River’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #47 of 88 in Nova Scotia and #1,724 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Wildfire is rare near Fall River: 1.8% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where Fall River’s residents live, and the fuel next to their homes.
Low by Canadian standards: 0.05% of the land a year around Fall River, 0.000% for the typical Canadian town.
The closest burn since 1986 lies 5.0 km from Fall River’s homes, none within 5 km.
There is forest near Fall River’s homes (67% within 5 km) and more of it further out (77% 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 Nova Scotia · highest of 90
Fall River burns at 0.05% a year, 31st of 90 towns in Nova Scotia; the leader, Barrington, reaches 0.46%.
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.
Some fire is mapped around Fall River, but not enough to leave the low band, where 92% of Canada’s 2,610 towns are; 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.
Flooding around Fall River is mapped in 2 studies, the newest by Halifax Regional Municipality
Flood studies whose area touches Fall River, from NRCan’s inventory, each linked to its owner.
2 studies on the inventory touch Fall River, the newest Halifax Regional Municipality’s from 2024, and their areas can be large, so they say maps exist, not that the town floods.
| Study | By | Year | Status |
|---|---|---|---|
| Creation of Coastal, Pluvial, Fluvial Flood Hazard Maps for Halifax Regional Municipality | Halifax Regional Municipality | 2024 | final |
| Shubenacadie Lakes Floodplain Study | Halifax Regional Municipality | 2020 | final |
Towns with a flood study on file
Fall River is one of the 88% of towns in Nova Scotia with a flood study on file; across Canada it 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 Fall River 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.
Earthquakes cost buildings in Fall River $0.018 per $1,000 a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
Earthquake losses in Fall River, $0.018 per $1,000, are in line with the typical $0.030 (0.6 times).
For earthquake risk, the only official count covers all of the city of Halifax, Fall River included.
Shaking damage a year per $1,000 of building value
Earthquake risk around Fall River ($0.018) matches the middle in Nova Scotia ($0.018), far from Clare’s $0.034.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Toward the quiet end of Canada’s range: 68% of its 2,611 towns sit above Fall River.
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).
For Fall River the model prices shaking damage to buildings, nothing more.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
13% of homes tested around Fall River are over the radon guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
At 13% over the guideline, the area around Fall River beats the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
1% of tests around Fall River passed 600 Bq/m³; over 200, its 13% matches the median in Nova Scotia, 13%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
The 10–20% band holds 22% of Canada’s 2,611 towns, Fall River among them; 4.6% rank above.
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.
Health Canada advises testing every home, Fall River’s included, whatever the area’s figure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Data for radon tests covers the Zone 6 health region
Where to get warnings in Fall River
Alerts for Fall River 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. |
Fire danger and active fires near Fall River are mapped daily by the Canadian Wildland Fire Information System; evacuation orders come from the municipality or province.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Fall River
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Fall River | Low | $0.018 | 13% | Yes |
| Beaver Bank 9,157 · 4.7 km | Low | $0.018 | 13% | Yes |
| Lower Sackville 20,171 · 6.9 km | Low | $0.018 | 13% | Yes |
| Middle Sackville 14,898 · 8.2 km | Low | $0.018 | 13% | Yes |
| Dutch Settlement 6,234 · 9.1 km | Low | $0.018 | 13% | Yes |
| Bedford 28,848 · 12 km | Low | $0.018 | 13% | Yes |
| Hammonds Plains 13,844 · 16 km | Low | $0.018 | 13% | Yes |
Bedford burns a little more than Fall River, in the same low band (low here).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Fall River faces
Practical steps for Fall River’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?
- Check the address on the flood map.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Fall River’s census subdivision (a neighbourhood shows its city’s).
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Fall River is its health region’s, the survey’s design unit.
- Flood studies aren’t flood zones. NRCan’s inventory says where flood mapping exists, not where water goes; the map’s owner is the authority for Fall River.
- Wildfire counts one way. For Fall River, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
Questions about flooding and hazards in Fall River
Is Fall River at risk of wildfire?
Not much by Canadian standards: Fall River’s band is low, with 1.8% of the land within 25 km burned since 1986 (last in 2025), so wildfire doesn’t change its grade.
Is radon a problem in Fall River?
13% of the 101 homes Health Canada tested around Fall River topped the guideline; your own house needs its own test.
How big is the earthquake risk in Fall River?
About $0.018 a year per $1,000 of building value, NRCan’s long-run expectation for Fall River.
How is Fall River’s Hazard risk Grade worked out?
Fall River grades B− for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Does Fall River flood?
There is flood mapping for Fall River on the national inventory, each study linked to its owner’s map, none of them graded.
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).