Photo: Tmv · CC BY-SA 4.0Shaking costs buildings in Anderson Walk $0.47 a year per $1,000 of value, 16 times the typical town’s
Wildfire is rare near Anderson Walk: 0.2% of the land within 25 km has burned since 1986, a burn rate of 0.004% a year. Fewer homes than usual carry radon here, 0% over the guideline where the typical town has 6.6%. Hazard risk gives Anderson Walk a grade of B; its wildfire band pulls it down.
What stands out about Anderson Walk’s hazards
For Anderson Walk, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Anderson Walk faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Anderson Walk: B
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Anderson Walk with little fire nearby would get no credit for it.
Its place: #59 of 254 in British Columbia and #1,520 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. The radon share rests on 70 home tests in the survey area, so a few homes move it. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Few fires near Anderson Walk: 0% within 5 km, 0.2% within 25 km
Fires mapped since 1986 around where Anderson Walk’s residents live, and the fuel next to their homes.
At 0.004% of the land a year, Anderson Walk’s burn rate is in the low band; the typical Canadian town sees 0.000%.
Fire has stayed at least 15 km from Anderson Walk’s homes since 1986.
8% of the land within 5 km of Anderson Walk is forest fuel, close to the 6% 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 255
In the lower half in British Columbia: Anderson Walk at 0.004% a year, 144th of 255, far from Oliver’s 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.
The low band takes in 92% of Canada’s 2,610 towns, Anderson Walk among them, though its rate is above zero; 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.
Anderson Walk is on the flood map inventory: 1 study, by City of Surrey
Flood studies whose area touches Anderson Walk, from NRCan’s inventory, each linked to its owner.
City of Surrey holds the flood mapping that covers Anderson Walk (2015), linked below.
| Study | By | Year | Status |
|---|---|---|---|
| Serpentine & Nicomekl River Climate Change Floodplain Review Phase 2 | City of Surrey | 2015 | final |
Towns with a flood study on file
Anderson Walk 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.
Listed, not scored: a flood study proves a map exists, not that Anderson Walk floods.
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 Anderson Walk $0.47 per $1,000 a year
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; Anderson Walk loses $0.47, 15.7 times as much.
Figures for earthquake risk are published for the city of Surrey as a whole, not for Anderson Walk alone.
Shaking damage a year per $1,000 of building value
The typical town in British Columbia expects $0.36 a year; Anderson Walk expects $0.47, and Duncan $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.
Few of Canada’s 2,611 towns face more earthquake damage than Anderson Walk: 1.6% 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).
For Anderson Walk the model prices shaking damage to buildings, nothing more.
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 Anderson Walk: 0% of area homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
Anderson Walk’s survey area reads 0% over the guideline, under the typical Canadian town’s 6.6%. Nobody publishes radon tests for Anderson Walk alone, so this card uses the figure for the Fraser South health region.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Anderson Walk’s area, at 0%, is below the median in British Columbia (1.8%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Anderson Walk is in the lowest band, with 37% of Canada’s 2,611 towns: under 5% of tests over the guideline, while 63% 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.
Whatever Anderson Walk’s area share, the reading that matters is your own home’s, over a winter.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Anderson Walk
Alerts for Anderson Walk 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 Anderson Walk 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 Anderson Walk’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Anderson Walk | Low | $0.47 | 0% | Yes |
| Morgan Creek 8,084 · 0.8 km | Low | $0.47 | 0% | Yes |
| South Surrey 6,431 · 1.1 km | Low | $0.47 | 0% | Yes |
| Sunnyside 16,784 · 2.2 km | Low | $0.47 | 0% | Yes |
| Semiahmoo Town Centre 13,381 · 3.6 km | Low | $0.47 | 0% | Yes |
| Grandview 16,947 · 3.8 km | Low | $0.47 | 0% | Yes |
| White Rock 25,057 · 4.4 km | Low | $0.60 | 0% | Yes |
Among its neighbours Anderson Walk has the most fire on record (low); South Surrey follows (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Anderson Walk faces
What to do about the hazards Anderson Walk 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. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Anderson Walk’s included.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Anderson Walk without grading them.
- 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 Anderson Walk until then.
- 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 Anderson Walk.
Questions about flooding and hazards in Anderson Walk
How big is the earthquake risk in Anderson Walk?
About $0.47 a year per $1,000 of building value, NRCan’s long-run expectation for Anderson Walk.
Is radon a problem in Anderson Walk?
Around Anderson Walk, 70 survey homes were tested and 0% came in over 200 Bq/m³, a guide to the area, not to any one home.
Is Anderson Walk at risk of wildfire?
Fire has reached 0.2% of the land around Anderson Walk since 1986 (last in 2018); at low, it neither helps nor hurts the grade.
Does Anderson Walk flood?
A flood study covers Anderson Walk on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
How is Anderson Walk’s Hazard risk Grade worked out?
Hazard risk gives Anderson Walk B, weighing earthquakes and radon and counting wildfire only against it.
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).