Earthquake risk in Tzeachten 13 runs 9 times the typical Canadian town’s: $0.28 per $1,000 a year
Wildfire is rare near Tzeachten 13: 0.3% of the land within 25 km has burned since 1986, a burn rate of 0.009% a year. Radon is lower than usual: 3% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Tzeachten 13 grades C+ for hazard risk, with wildfire counted against it.
What stands out about Tzeachten 13’s hazards
For Tzeachten 13, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Tzeachten 13 faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Tzeachten 13: C+
Seismic risk and radon set Tzeachten 13’s grade, wildfire can drag it down, and flood mapping stays out of it.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Few fires near Tzeachten 13: 0% within 5 km, 0.3% within 25 km
Past fire around Tzeachten 13’s homes, from the national burned-area record, with the fuel within 5 km.
In a typical year 0.009% of the land near Tzeachten 13 burns; the typical Canadian town sees 0.000%, and both are low.
The 5 km ring around Tzeachten 13’s homes is clear of burns since 1986, the nearest 8.5 km out.
The nearer ring around Tzeachten 13 is less wooded (22% forest fuel) than the land out to 25 km (55%).
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%): Tzeachten 13 ranks 100th of 256, at 0.009% 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 Tzeachten 13 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.
Flooding around Tzeachten 13 is mapped in 2 studies, the newest by Ministry of Environment and Climate Change Strategy
What Canada’s Flood Map Inventory lists for Tzeachten 13: who studied flooding and where to see their maps.
2 studies on the inventory touch Tzeachten 13, the newest Ministry of Environment and Climate Change Strategy’s from 1985, and their areas can be large, so they say maps exist, not that the town floods.
| Study | By | Year | Status |
|---|---|---|---|
| Vedder River Floodplain Mapping | Ministry of Environment and Climate Change Strategy | 1985 | final |
| Chilliwack River Floodplain Mapping (Vedder River to Slesse Creek ) | Ministry of Environment and Climate Change Strategy | 1981 | final |
Towns with a flood study on file
76% of towns in British Columbia have a flood study, more than Canada’s 58%; Tzeachten 13 has one too.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood studies don’t enter the grade; they are listed so you can open the official map for Tzeachten 13.
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.
Shaking is Tzeachten 13’s costliest hazard: $0.28 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Tzeachten 13’s $0.28 is about 9.5 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
Tzeachten 13’s $0.28 sits under the median in British Columbia, $0.36, and well under Duncan’s $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.
Tzeachten 13 is in the top tenth of Canada’s 2,611 towns for earthquake risk; 6% rank higher.
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).
What a quake does after the shaking, fire, landslides, tsunami, falls outside NRCan’s figure for Tzeachten 13.
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 Tzeachten 13: 3% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Source area for radon tests: the Fraser East health region
Radon runs below the typical Canadian town (6.6%) in Tzeachten 13’s area, at 3%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
More homes top the guideline around Tzeachten 13 (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.
Under 5% puts Tzeachten 13 with 37% of Canada’s 2,611 towns; 63% have more high tests.
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.
Health Canada advises testing every home, Tzeachten 13’s included, whatever the area’s figure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Tzeachten 13
Alerts for Tzeachten 13 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 Tzeachten 13 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 Tzeachten 13’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 |
|---|---|---|---|---|
| Tzeachten 13 | Low | $0.28 | 3% | Yes |
| Skowkale 1,114 · 2.7 km | Low | $0.25 | 3% | None listed |
| Chilliwack 105,520 · 3.0 km | Low | $0.31 | 3% | Yes |
| Electoral Area E, Fraser Valley 1,748 · 9.2 km | Low | $0.19 | 3% | Yes |
| Cultus Lake 2,773 · 10 km | Low | $0.28 | 3% | Yes |
| Rosedale 2,401 · 16 km | Low | $0.10 | 3% | Yes |
| Electoral Area C, Fraser Valley 1,155 · 16 km | Low | $0.082 | 3% | Yes |
The fire record around Electoral Area C, Fraser Valley is a touch heavier than Tzeachten 13’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 Tzeachten 13 faces
Practical steps for Tzeachten 13’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
- Wildfire counts one way. For Tzeachten 13, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Tzeachten 13 takes its 2007 health region’s share.
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Tzeachten 13’s census subdivision (a neighbourhood shows its city’s).
- 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 Tzeachten 13.
Questions about flooding and hazards in Tzeachten 13
How is Tzeachten 13’s Hazard risk Grade worked out?
Tzeachten 13’s Hazard risk grade is C+, built on earthquakes and radon with a one-sided wildfire input.
Does Tzeachten 13 flood?
The inventory lists a study touching Tzeachten 13; whether a given street floods is on that map, not in the grade.
Is Tzeachten 13 at risk of wildfire?
Not much by Canadian standards: Tzeachten 13’s band is low, with 0.3% of the land within 25 km burned since 1986 (last in 2022), so wildfire doesn’t change its grade.
Is radon a problem in Tzeachten 13?
3% of the 100 homes Health Canada tested around Tzeachten 13 topped the guideline; your own house needs its own test.
How big is the earthquake risk in Tzeachten 13?
In NRCan’s seismic model, Tzeachten 13’s buildings lose $0.28 per $1,000 of value in an average year.
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).