Photo: Fil.Al from Comox, Canada · CC BY 2.0Hazards in Trend-Arlington: wildfire low, radon over the guideline in 6.2% of tested homes
Wildfire barely registers for Trend-Arlington, at 0% of the land within 25 km since 1986 (0.000% a year). Seismic risk runs high: $0.15 of expected damage per $1,000 of buildings a year, the typical town $0.030. Hazard risk gives Trend-Arlington a grade of C+, from earthquakes and radon alone.
What stands out about Trend-Arlington’s hazards
Four national sources, each read for Trend-Arlington: earthquakes, radon, past fires and flood studies.
What Trend-Arlington faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Trend-Arlington grades C+ for hazard risk
Two inputs always count for Trend-Arlington, earthquakes and radon; the third, wildfire, counts only against a town.
Its place: #703 of 866 in Ontario and #1,894 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. The radon share rests on 64 home tests in the survey area, so a few homes move it. Small fires and grass fires are largely missing from the national burned-area record.
Little of the land around Trend-Arlington has burned: 0% within 5 km, 0% within 25 km since 1986
Fires mapped since 1986 around where Trend-Arlington’s residents live, and the fuel next to their homes.
Forty years of fire maps put Trend-Arlington at 0.000% a year, low next to the typical Canadian town’s 0.000%.
Since 1986 the nearest fire to Trend-Arlington’s homes came within 19 km, never inside 5 km.
Forest fuel is spread evenly around Trend-Arlington: 5.2% within 5 km, 9.1% 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); Trend-Arlington 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.
Most of the country’s 2,610 towns are low-band (92%, against 7.5% above); around Trend-Arlington, burning rounds to zero.
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 Trend-Arlington
Flood studies whose area touches Trend-Arlington, from NRCan’s inventory, each linked to its owner.
The inventory has nothing for Trend-Arlington, but a local or conservation-authority map may still exist.
Towns with a flood study on file
Trend-Arlington has no flood study on file, though 69% of towns in Ontario do (Canada: 58%).
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood studies don’t enter the grade; they are listed so you can open the official map for Trend-Arlington.
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.”
Shaking is Trend-Arlington’s costliest hazard: $0.15 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.
The typical town loses $0.030 a year to shaking; Trend-Arlington loses $0.15, 5 times as much.
Shaking damage a year per $1,000 of building value
Trend-Arlington’s $0.15 tops the median in Ontario, $0.043, though Alexandria reaches $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.
More earthquake risk than most: only 15% of Canada’s 2,611 towns are above Trend-Arlington.
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 Trend-Arlington’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). · Area behind the earthquake risk figures: the city of Ottawa
6.2% of homes tested around Trend-Arlington are over the radon guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Measured across the City of Ottawa Health Unit: radon tests
Trend-Arlington’s area sits close to the typical Canadian town: 6.2% over the guideline, against 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Trend-Arlington’s area, at 6.2%, is above the median in Ontario (4%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Trend-Arlington is in the 5–10% band with 37% of Canada’s 2,611 towns; 26% have more.
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.
A survey sample isn’t a map: any home in Trend-Arlington can be high, and a three-month test is the only way to know.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Trend-Arlington
Alerts for Trend-Arlington 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 Trend-Arlington 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)
How Trend-Arlington’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Trend-Arlington | Low | $0.15 | 6.2% | None listed |
| Leslie Park - Bruce Farm 3,056 · 1.3 km | Low | $0.15 | 6.2% | None listed |
| Centrepointe - Briargreen 9,259 · 1.5 km | Low | $0.15 | 6.2% | None listed |
| Craig Henry - Manordale 8,758 · 1.6 km | Low | $0.15 | 6.2% | None listed |
| Qualicum - Redwood 4,761 · 1.7 km | Low | $0.15 | 6.2% | Yes |
| Iris 5,733 · 2.4 km | Low | $0.15 | 6.2% | None listed |
| Bells Corners East 4,963 · 3.2 km | Low | $0.15 | 6.2% | None listed |
Qualicum - Redwood burns a little more than Trend-Arlington, 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 Trend-Arlington faces
What to do about the hazards Trend-Arlington faces, and what to ask before you buy.
- 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.
- Drop, cover and hold on.
- Strap the water heater down.
- Keep 72 hours of supplies.
- Has it had a radon test?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
- Is earthquake cover included?
What this data can and can’t tell you
- Wildfire counts one way. Wildfire is read from the national burned-area record around Trend-Arlington’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; Trend-Arlington’s figure is its subdivision’s.
- 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 Trend-Arlington.
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Trend-Arlington is its health region’s, the survey’s design unit.
Questions about flooding and hazards in Trend-Arlington
Does Trend-Arlington flood?
With 0 studies on the inventory, Trend-Arlington’s flood risk is unmapped nationally; check with the municipality before buying.
How big is the earthquake risk in Trend-Arlington?
About $0.15 a year per $1,000 of building value, NRCan’s long-run expectation for Trend-Arlington.
Is Trend-Arlington at risk of wildfire?
Fire has reached 0% of the land around Trend-Arlington since 1986 (last in 2014); at low, it neither helps nor hurts the grade.
Is radon a problem in Trend-Arlington?
Around Trend-Arlington, 64 survey homes were tested and 6.2% came in over 200 Bq/m³, a guide to the area, not to any one home.
How is Trend-Arlington’s Hazard risk Grade worked out?
Trend-Arlington grades C+ for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
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).