Wildfire low, radon 5%: how Mountview stands on hazards
For Mountview, wildfire history is close to nil: 0% of nearby land since 1986, 0.000% a year. For earthquakes Mountview is middling, $0.044 a year per $1,000 against $0.030 for the typical town. Hazard risk gives Mountview a grade of B+, from earthquakes and radon alone.
What stands out about Mountview’s hazards
Four national sources, each read for Mountview: earthquakes, radon, past fires and flood studies.
What Mountview faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Mountview grades B+ for hazard risk
Two inputs always count for Mountview, earthquakes and radon; the third, wildfire, counts only against a town.
Its place: #494 of 866 in Ontario and #1,255 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.
Few fires near Mountview: 0% within 5 km, 0% within 25 km
Past fire around Mountview’s homes, from the national burned-area record, with the fuel within 5 km.
Fire claims 0.000% of the land around Mountview each year, a low band, with the typical Canadian town at 0.000%.
Little near Mountview’s homes can carry a forest fire; only 0.8% of the land within 5 km is forest fuel, and 2.1% 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
Sioux Lookout has the highest burn rate in Ontario, 0.16% a year; around Mountview, as around 638 of the 871 towns, it rounds to 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.
92% of Canada’s 2,610 towns are in the low band and 7.5% above it; Mountview is among the many where the yearly burn rate 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 Mountview
What Canada’s Flood Map Inventory lists for Mountview: who studied flooding and where to see their maps.
NRCan’s inventory is silent on Mountview, so any flood map would be the municipality’s own.
Towns with a flood study on file
Missing from a well-mapped province: Mountview has no study, where 69% of towns in Ontario have one against 58% nationally.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
The grade leaves flood out, since a study area says nothing about how many of Mountview’s homes are at risk.
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.”
Expected shaking damage in Mountview: $0.044 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Mountview’s $0.044 is close to the typical town’s $0.030 (1.5 times as much).
For earthquake risk, the only official count covers all of the city of Hamilton, Mountview included.
Shaking damage a year per $1,000 of building value
About level with the typical town in Ontario: Mountview’s $0.044 against $0.043; 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.
In the upper part of Canada’s range: 32% of its 2,611 towns expect more damage than Mountview.
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 Mountview’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).
Some radon around Mountview: 5% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Around Mountview, 5% of tested homes topped the guideline, near the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The median in Ontario is 4% over 200 Bq/m³; the survey area around Mountview has 5%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Mountview 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.
The survey sampled homes around Mountview; it can’t tell you your basement’s level.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Radon tests: one figure for all of the City of Hamilton Health Unit
Weather and fire alerts for Mountview
Environment and Climate Change Canada issues the weather alerts for Mountview; 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. |
For fires near Mountview, the national fire information system maps danger and active fires daily; local authorities give any evacuation order.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Mountview
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Mountview | Low | $0.044 | 5% | None listed |
| Fessenden 3,551 · 0.8 km | Low | $0.044 | 5% | None listed |
| Westcliffe East 2,832 · 1.2 km | Low | $0.044 | 5% | None listed |
| Gilbert 3,181 · 1.4 km | Low | $0.044 | 5% | None listed |
| Gurnett 4,582 · 1.6 km | Low | $0.044 | 5% | None listed |
| Ainslie Wood East 3,112 · 2.0 km | Low | $0.044 | 5% | None listed |
| Gilkson 2,963 · 2.0 km | Low | $0.044 | 5% | None listed |
Fire is no heavier anywhere nearby than around Mountview (low), with Fessenden next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Mountview faces
What to do about the hazards Mountview 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.
- 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. Shaking damage is modelled from the ground, the buildings and the odds of each quake, and published for whole subdivisions such as Mountview’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 Mountview.
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Mountview is its health region’s, the survey’s design unit.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Mountview’s homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
Questions about flooding and hazards in Mountview
Is Mountview at risk of wildfire?
Hardly at all on record: 0% of the land within 25 km of Mountview since 1986, a low band, though small grass fires aren’t mapped.
Does Mountview flood?
Nothing is listed for Mountview on the national inventory (0); local maps may still exist with the municipality.
How big is the earthquake risk in Mountview?
In NRCan’s seismic model, Mountview’s buildings lose $0.044 per $1,000 of value in an average year.
Is radon a problem in Mountview?
In Health Canada’s survey, 5% of 100 homes tested in Mountview’s area were above 200 Bq/m³, though only a test tells you about one house.
How is Mountview’s Hazard risk Grade worked out?
Mountview grades B+ 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).