Photo: Gerry Thomasen from Nanaimo, Canada · CC BY 2.0Earthquakes are Electoral Area C, Nanaimo’s biggest hazard: $0.44 of damage a year per $1,000 of buildings, 15 times the norm
Burn scars are few around Electoral Area C, Nanaimo, with 0.2% of the land within 25 km touched by fire since 1986 (0.005% a year). In Health Canada’s survey, just 0.9% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Electoral Area C, Nanaimo grades B− for hazard risk, with wildfire counted against it.
What stands out about Electoral Area C, Nanaimo’s hazards
Four national sources, each read for Electoral Area C, Nanaimo: earthquakes, radon, past fires and flood studies.
What Electoral Area C, Nanaimo faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Electoral Area C, Nanaimo grades B− for hazard risk
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Electoral Area C, Nanaimo with little fire nearby would get no credit for it.
Its place: #118 of 254 in British Columbia and #1,629 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.
Little of the land around Electoral Area C, Nanaimo has burned: 0.1% within 5 km, 0.2% within 25 km since 1986
Past fire around Electoral Area C, Nanaimo’s homes, from the national burned-area record, with the fuel within 5 km.
In a typical year 0.005% of the land near Electoral Area C, Nanaimo burns; the typical Canadian town sees 0.000%, and both are low.
Forest fuel covers 60% of the land close to Electoral Area C, Nanaimo and 72% across 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 255
Electoral Area C, Nanaimo sits mid-table in British Columbia: 121st of 255 towns, at 0.005% a year, well behind Oliver (0.98%).
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.
7.5% of Canada’s 2,610 towns burn fast enough to rank moderate or above; Electoral Area C, Nanaimo stays low, with 92%.
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, Nanaimo is on the flood map inventory: 1 study, by Ministry of Environment and Climate Change Strategy
What Canada’s Flood Map Inventory lists for Electoral Area C, Nanaimo: who studied flooding and where to see their maps.
A 1984 study by Ministry of Environment and Climate Change Strategy covers Electoral Area C, Nanaimo, and its map, not the inventory, shows the zones.
| Study | By | Year | Status |
|---|---|---|---|
| Nanaimo River Floodplain Mapping (including Haslam Creek) | Ministry of Environment and Climate Change Strategy | 1984 | final |
Towns with a flood study on file
Electoral Area C, Nanaimo 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, Nanaimo.
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.
High seismic risk in Electoral Area C, Nanaimo: $0.44 per $1,000 of buildings a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
At $0.44 per $1,000, Electoral Area C, Nanaimo carries roughly 14.6 times the typical Canadian town’s earthquake risk ($0.030).
Shaking damage a year per $1,000 of building value
Electoral Area C, Nanaimo’s $0.44 is close to the median in British Columbia, $0.36; Duncan is highest at $1.33.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Only 3% of Canada’s 2,611 towns expect more shaking damage than Electoral Area C, Nanaimo.
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 Electoral Area C, Nanaimo’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).
0.9% of homes tested around Electoral Area C, Nanaimo are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Shared with the rest of the Central Vancouver Island health region: radon tests
Electoral Area C, Nanaimo’s survey area reads 0.9% over the guideline, under the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The median in British Columbia is 1.8% over 200 Bq/m³; around Electoral Area C, Nanaimo it is 0.9%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
The quietest radon band, under 5%, holds 37% of Canada’s 2,611 towns and Electoral Area C, Nanaimo; 63% sit 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.
Basements, soil and how a house is sealed decide its radon, so in Electoral Area C, Nanaimo only a test can say.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Electoral Area C, Nanaimo
Environment and Climate Change Canada issues the weather alerts for Electoral Area C, Nanaimo; 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. |
In fire season, check CWFIS for danger and active fires around Electoral Area C, Nanaimo, and listen to local authorities for orders.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Electoral Area C, Nanaimo
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Electoral Area C, Nanaimo | Low | $0.44 | 0.9% | Yes |
| Nanaimo 111,845 · 3.4 km | Low | $0.59 | 0.9% | Yes |
| Lantzville 4,276 · 7.7 km | Low | $0.50 | 0.9% | None listed |
| Fairwinds 7,125 · 15 km | Low | $0.34 | 0.9% | None listed |
| Electoral Area A, Nanaimo 7,825 · 16 km | Low | $0.54 | 0.9% | Yes |
| Electoral Area B, Nanaimo 4,702 · 18 km | Low | $0.39 | 0.9% | None listed |
The fire record around Electoral Area B, Nanaimo is a touch heavier than Electoral Area C, Nanaimo’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, Nanaimo faces
What to do about the hazards Electoral Area C, Nanaimo 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?
- Check the address on the flood map.
- Are flood and wildfire insured?
- Is earthquake cover included?
What this data can and can’t tell you
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Electoral Area C, Nanaimo’s figure is its subdivision’s.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Electoral Area C, Nanaimo takes its 2007 health region’s share.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Electoral Area C, Nanaimo’s homes since 1986, a history of fire that may lower Risk but never raises it.
- 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 Electoral Area C, Nanaimo.
Questions about flooding and hazards in Electoral Area C, Nanaimo
Is Electoral Area C, Nanaimo at risk of wildfire?
Less than most of Canada: 0.2% of the land within 25 km of Electoral Area C, Nanaimo has burned since 1986, the last in 2025, a low band that leaves Risk alone.
How big is the earthquake risk in Electoral Area C, Nanaimo?
In NRCan’s seismic model, Electoral Area C, Nanaimo’s buildings lose $0.44 per $1,000 of value in an average year.
Does Electoral Area C, Nanaimo flood?
The inventory lists a study touching Electoral Area C, Nanaimo; whether a given street floods is on that map, not in the grade.
How is Electoral Area C, Nanaimo’s Hazard risk Grade worked out?
Electoral Area C, Nanaimo’s Hazard risk grade is B−, built on earthquakes and radon with a one-sided wildfire input.
Is radon a problem in Electoral Area C, Nanaimo?
In Health Canada’s survey, 0.9% of 109 homes tested in Electoral Area C, Nanaimo’s area were above 200 Bq/m³, though only a test tells you about one house.
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).