Photo: Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center · Public domainGaetz Brook is on Canada’s flood inventory: 1 listed, led by Halifax Regional Municipality
Burn scars are few around Gaetz Brook, with 1.5% of the land within 25 km touched by fire since 1986 (0.04% a year). Seismic risk in Gaetz Brook sits near the middle: $0.018 of expected damage per $1,000 of buildings a year, the typical town $0.030. More homes than usual carry radon here, 13% over the guideline where the typical town has 6.6%. Gaetz Brook grades B− for hazard risk, with wildfire counted against it.
What stands out about Gaetz Brook’s hazards
Four national sources, each read for Gaetz Brook: earthquakes, radon, past fires and flood studies.
What Gaetz Brook faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Gaetz Brook: B−
For Gaetz Brook, Risk will be the average of earthquakes and radon, with wildfire added only if it makes the average worse.
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. Small fires and grass fires are largely missing from the national burned-area record.
Wildfire is rare near Gaetz Brook: 1.5% of the land within 25 km burned since 1986, 0.5% within 5 km
Fires mapped since 1986 around where Gaetz Brook’s residents live, and the fuel next to their homes.
The land within 25 km of Gaetz Brook burns at 0.04% a year on average, the low band; the typical Canadian town: 0.000%.
Forest fuel is spread evenly around Gaetz Brook: 89% within 5 km, 88% 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
Gaetz Brook sits mid-table in Nova Scotia: 32nd of 90 towns, at 0.04% a year, well behind Barrington (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.
Gaetz Brook is in the low band with 92% of Canada’s 2,610 towns; 7.5% sit in moderate or 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.
Halifax Regional Municipality has mapped flooding for Gaetz Brook (1 study)
Flood studies whose area touches Gaetz Brook, from NRCan’s inventory, each linked to its owner.
For Gaetz Brook the inventory points to Halifax Regional Municipality’s 2024 study, whose map is the one to check.
| Study | By | Year | Status |
|---|---|---|---|
| Creation of Coastal, Pluvial, Fluvial Flood Hazard Maps for Halifax Regional Municipality | Halifax Regional Municipality | 2024 | final |
Towns with a flood study on file
Mapping in Nova Scotia reaches 88% of towns, Gaetz Brook included, beside 58% across Canada.
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 Gaetz Brook 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 Gaetz Brook $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.
With $0.018 of shaking damage a year per $1,000, Gaetz Brook is about even with the typical $0.030 (0.6 times).
Shaking damage a year per $1,000 of building value
About level with the typical town in Nova Scotia: Gaetz Brook’s $0.018 against $0.018; Clare reaches $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.
Most of Canada’s 2,611 towns (68%) face more earthquake damage than Gaetz Brook.
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 Gaetz Brook’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). · Data for earthquake risk covers the city of Halifax
13% of homes tested around Gaetz Brook 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 Zone 6 health region
Radon runs above the typical Canadian town (6.6%) in Gaetz Brook’s area, at 13%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Gaetz Brook’s area, at 13%, is close to the median in Nova Scotia (13%); 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.
Gaetz Brook is in the 10–20% band, with 22% of Canada’s 2,611 towns; only 4.6% 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.
One home in Gaetz Brook can be high while next door is low; a three-month test settles it.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Gaetz Brook
Alerts for Gaetz Brook 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. |
Alert Ready carries evacuation orders for Gaetz Brook to phones; CWFIS shows the day’s fire danger.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Gaetz Brook
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Gaetz Brook | Low | $0.018 | 13% | Yes |
| East Lawrencetown 4,020 · 8.8 km | Moderate | $0.018 | 13% | Yes |
| Lake Echo 5,223 · 8.9 km | Low | $0.018 | 13% | Yes |
| Musquodoboit Harbour 2,719 · 9.8 km | Low | $0.018 | 13% | Yes |
| East Preston 2,573 · 14 km | Low | $0.018 | 13% | Yes |
| Lawrencetown 3,509 · 14 km | Moderate | $0.018 | 13% | Yes |
| Westphal 4,201 · 18 km | Moderate | $0.018 | 13% | Yes |
The heaviest fire record nearby is East Lawrencetown’s, moderate to Gaetz Brook’s low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Gaetz Brook faces
Practical steps for Gaetz Brook’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
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Gaetz Brook’s homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Gaetz Brook takes its 2007 health region’s share.
- 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 Gaetz Brook’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 Gaetz Brook.
Questions about flooding and hazards in Gaetz Brook
Is radon a problem in Gaetz Brook?
The area’s survey found 13% of 101 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Gaetz Brook.
Is Gaetz Brook at risk of wildfire?
Some, but Gaetz Brook’s low band (1.5% of nearby land burned since 1986, latest 2025) is short of the level that counts.
How big is the earthquake risk in Gaetz Brook?
Expected earthquake damage in Gaetz Brook comes to $0.018 a year for each $1,000 that buildings are worth.
Does Gaetz Brook flood?
The inventory lists a study touching Gaetz Brook; whether a given street floods is on that map, not in the grade.
How is Gaetz Brook’s Hazard risk Grade worked out?
Hazard risk gives Gaetz Brook B−, weighing earthquakes and radon and counting wildfire only against it.
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).