Photo: Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center · Public domainElectoral Area C, Fraser Valley is on Canada’s flood inventory: 1 listed, led by Province of B.C. - Water, Lands, and Resource Stewardship
Wildfire is rare near Electoral Area C, Fraser Valley: 0.9% of the land within 25 km has burned since 1986, a burn rate of 0.02% a year. Earthquakes add more: NRCan’s model puts building losses at $0.082 a year per $1,000 of value, against $0.030 for the typical town. In Health Canada’s survey, just 3% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Electoral Area C, Fraser Valley grades B+ for hazard risk, with wildfire counted against it.
What stands out about Electoral Area C, Fraser Valley’s hazards
For Electoral Area C, Fraser Valley, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Electoral Area C, Fraser Valley faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Electoral Area C, Fraser Valley: B+
Earthquake risk and radon make Electoral Area C, Fraser Valley’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Few fires near Electoral Area C, Fraser Valley: 0.3% within 5 km, 0.9% within 25 km
Past fire around Electoral Area C, Fraser Valley’s homes, from the national burned-area record, with the fuel within 5 km.
Around Electoral Area C, Fraser Valley fire takes 0.02% of the land in a typical year, the typical Canadian town 0.000%, which is low.
Forest fuel is denser close to Electoral Area C, Fraser Valley (73% within 5 km) than further out (66% 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 British Columbia · highest of 256
In the upper half in British Columbia but far from Oliver (0.98%): Electoral Area C, Fraser Valley ranks 86th of 256, at 0.02% a year.
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.
Beside 2,610 Canadian towns, Electoral Area C, Fraser Valley reads low, with 92% of them; only 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.
Electoral Area C, Fraser Valley is on the flood map inventory: 1 study, by Province of B.C. - Water, Lands, and Resource Stewardship
What Canada’s Flood Map Inventory lists for Electoral Area C, Fraser Valley: who studied flooding and where to see their maps.
The flood study touching Electoral Area C, Fraser Valley is Province of B.C. - Water, Lands, and Resource Stewardship’s, dated 2025; its own map shows the zones street by street.
| Study | By | Year | Status |
|---|---|---|---|
| Lower Fraser and Coquihalla Rivers | Province of B.C. - Water, Lands, and Resource Stewardship | 2025 | final |
Towns with a flood study on file
Electoral Area C, Fraser Valley is one of the 76% of towns in British Columbia 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.
Nothing here counts toward Risk; the studies are pointers to the maps their owners keep for Electoral Area C, Fraser Valley.
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 Electoral Area C, Fraser Valley $0.082 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Roughly 2.7 times the typical $0.030: Electoral Area C, Fraser Valley’s $0.082 marks real seismic exposure.
Shaking damage a year per $1,000 of building value
Earthquake risk in British Columbia peaks in Duncan ($1.33); Electoral Area C, Fraser Valley, at $0.082, is below the median of $0.36.
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 28% of Canada’s 2,611 towns are above Electoral Area C, Fraser Valley.
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).
Only shaking damage to buildings in Electoral Area C, Fraser Valley is counted; landslides, liquefaction, tsunami and fire after a quake aren’t.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Little radon around Electoral Area C, Fraser Valley: 3% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Fewer homes than usual test high around Electoral Area C, Fraser Valley: 3% against 6.6% for the typical Canadian town.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
More homes top the guideline around Electoral Area C, Fraser Valley (3%) than in the typical town in British Columbia (1.8%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
63% of Canada’s 2,611 towns have a higher share of homes over 200 Bq/m³ than Electoral Area C, Fraser Valley’s band, which holds 37%.
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.
Neighbouring homes in Electoral Area C, Fraser Valley can differ a lot; only a long-term test tells you about yours.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Radon tests: the Fraser East health region
Where to get warnings in Electoral Area C, Fraser Valley
Environment and Climate Change Canada issues the weather alerts for Electoral Area C, Fraser Valley; 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 Electoral Area C, Fraser Valley, 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)
How Electoral Area C, Fraser Valley’s neighbours compare on hazards
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Electoral Area C, Fraser Valley | Low | $0.082 | 3% | Yes |
| Chilliwack 105,520 · 13 km | Low | $0.31 | 3% | Yes |
| Skowkale 1,114 · 14 km | Low | $0.25 | 3% | None listed |
| Harrison Hot Springs 2,148 · 14 km | Low | $0.13 | 3% | Yes |
| Kent 7,093 · 14 km | Low | $0.15 | 3% | Yes |
| Tzeachten 13 4,899 · 16 km | Low | $0.28 | 3% | Yes |
| Rosedale 2,401 · 17 km | Low | $0.10 | 3% | Yes |
The fire record around Harrison Hot Springs is a touch heavier than Electoral Area C, Fraser Valley’s, but the band is the same: low (here low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Electoral Area C, Fraser Valley faces
Practical steps for Electoral Area C, Fraser Valley’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
- Radon is a survey. Radon figures pool the survey’s home tests by area: postal areas once their boundaries arrive, the 2007 health region around Electoral Area C, Fraser Valley until then.
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Electoral Area C, Fraser Valley’s included.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Electoral Area C, Fraser Valley without grading them.
- Wildfire counts one way. Burned land within 25 km of where people live, averaged over 1986–2025 and checked for fuel near homes, is the measure; it looks back, not ahead, and only ever counts against Electoral Area C, Fraser Valley.
Questions about flooding and hazards in Electoral Area C, Fraser Valley
How big is the earthquake risk in Electoral Area C, Fraser Valley?
NRCan’s model expects shaking to cost buildings in Electoral Area C, Fraser Valley $0.082 a year for every $1,000 of their value, on average over many years.
Does Electoral Area C, Fraser Valley flood?
A flood study covers Electoral Area C, Fraser Valley on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
How is Electoral Area C, Fraser Valley’s Hazard risk Grade worked out?
Electoral Area C, Fraser Valley grades B+ for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is Electoral Area C, Fraser Valley at risk of wildfire?
Some, but Electoral Area C, Fraser Valley’s low band (0.9% of nearby land burned since 1986, latest 2023) is short of the level that counts.
Is radon a problem in Electoral Area C, Fraser Valley?
The area’s survey found 3% of 100 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Electoral Area C, Fraser Valley.
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).