Photo: Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center · Public domainEarthquakes are Electoral Area A, Nanaimo’s biggest hazard: $0.54 of damage a year per $1,000 of buildings, 18 times the norm
Wildfire is rare near Electoral Area A, Nanaimo: 0.3% of the land within 25 km has burned since 1986, a burn rate of 0.007% a year. Fewer homes than usual carry radon here, 0.9% over the guideline where the typical town has 6.6%. Hazard risk gives Electoral Area A, Nanaimo a grade of B−; its wildfire band pulls it down.
What stands out about Electoral Area A, Nanaimo’s hazards
Four national sources, each read for Electoral Area A, Nanaimo: earthquakes, radon, past fires and flood studies.
What Electoral Area A, Nanaimo 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 A, Nanaimo: B−
For Electoral Area A, Nanaimo, Risk will be the average of earthquakes and radon, with wildfire added only if it makes the average worse.
Its place: #127 of 254 in British Columbia and #1,642 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Small fires and grass fires are largely missing from the national burned-area record.
Wildfire is rare near Electoral Area A, Nanaimo: 0.3% of the land within 25 km burned since 1986, 0.5% within 5 km
Past fire around Electoral Area A, Nanaimo’s homes, from the national burned-area record, with the fuel within 5 km.
A burn rate of 0.007% a year keeps Electoral Area A, Nanaimo in the low band (the typical Canadian town: 0.000%).
The nearer ring around Electoral Area A, Nanaimo is less wooded (52% forest fuel) than the land out to 25 km (71%).
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
In the upper half in British Columbia but far from Oliver (0.98%): Electoral Area A, Nanaimo ranks 109th of 255, at 0.007% 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.
Low, like 92% of the country’s 2,610 towns: the land around Electoral Area A, Nanaimo burns, but slower than in the 7.5% above it.
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.
A flood study covers Electoral Area A, Nanaimo, from Ministry of Environment and Climate Change Strategy: 1 on the inventory
What Canada’s Flood Map Inventory lists for Electoral Area A, Nanaimo: who studied flooding and where to see their maps.
One study on the inventory touches Electoral Area A, Nanaimo, Ministry of Environment and Climate Change Strategy’s from 1984, and its area can be large, so it says a map exists, not that the town floods.
| 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
76% of towns in British Columbia have a flood study, more than Canada’s 58%; Electoral Area A, Nanaimo has one too.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood is shown here, never graded: a study says where a map exists, not how many of Electoral Area A, Nanaimo’s homes stand in a flood zone.
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 A, Nanaimo $0.54 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Electoral Area A, Nanaimo’s $0.54 is about 18.1 times the typical town’s $0.030: it sits in one of Canada’s more active seismic zones.
Shaking damage a year per $1,000 of building value
Earthquake risk in British Columbia peaks in Duncan ($1.33); Electoral Area A, Nanaimo, at $0.54, sits above 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.
Few of Canada’s 2,611 towns face more earthquake damage than Electoral Area A, Nanaimo: 1% of them.
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 A, 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).
Little radon around Electoral Area A, Nanaimo: 0.9% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Electoral Area A, Nanaimo’s survey area reads 0.9% over the guideline, under the typical Canadian town’s 6.6%. Electoral Area A, Nanaimo doesn’t get its own radon tests figures; the ones here come from the Central Vancouver Island health region.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Fewer homes top the guideline around Electoral Area A, Nanaimo (0.9%) 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.
Few tests over the guideline: Electoral Area A, Nanaimo shares the bottom band with 37% of Canada’s 2,611 towns, below the other 63%.
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 Electoral Area A, Nanaimo 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 Electoral Area A, Nanaimo
Environment and Climate Change Canada issues the weather alerts for Electoral Area A, 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 A, 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 A, Nanaimo
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Electoral Area A, Nanaimo | Low | $0.54 | 0.9% | Yes |
| Electoral Area H, Cowichan Valley 2,761 · 8.3 km | Low | $0.55 | 0.9% | None listed |
| Electoral Area B, Nanaimo 4,702 · 9.5 km | Low | $0.39 | 0.9% | None listed |
| Ladysmith 9,926 · 13 km | Low | $0.74 | 0.9% | None listed |
| Nanaimo 111,845 · 14 km | Low | $0.59 | 0.9% | Yes |
| Electoral Area C, Nanaimo 3,733 · 16 km | Low | $0.44 | 0.9% | Yes |
| Electoral Area G, Cowichan Valley 2,597 · 17 km | Low | $0.52 | 0.9% | Yes |
The fire record around Electoral Area B, Nanaimo is a touch heavier than Electoral Area A, 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 A, Nanaimo faces
Practical steps for Electoral Area A, Nanaimo’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.
- 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
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Electoral Area A, Nanaimo without grading them.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Electoral Area A, Nanaimo’s homes since 1986, a history of fire that may lower Risk but never raises it.
- 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 A, Nanaimo until then.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Electoral Area A, Nanaimo’s figure is its subdivision’s.
Questions about flooding and hazards in Electoral Area A, Nanaimo
How big is the earthquake risk in Electoral Area A, Nanaimo?
NRCan’s model expects shaking to cost buildings in Electoral Area A, Nanaimo $0.54 a year for every $1,000 of their value, on average over many years.
How is Electoral Area A, Nanaimo’s Hazard risk Grade worked out?
Electoral Area A, 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 A, Nanaimo?
0.9% of the 109 homes Health Canada tested around Electoral Area A, Nanaimo topped the guideline; your own house needs its own test.
Is Electoral Area A, Nanaimo at risk of wildfire?
Not much by Canadian standards: Electoral Area A, Nanaimo’s band is low, with 0.3% of the land within 25 km burned since 1986 (last in 2025), so wildfire doesn’t change its grade.
Does Electoral Area A, Nanaimo flood?
A flood study covers Electoral Area A, Nanaimo on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
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).