Flood mapping exists for Akwesasne (Part) 59: 3 on record, latest by Raisin Region Conservation Authority
The burned-area map is nearly blank around Akwesasne (Part) 59, 0% within 25 km since 1986, 0.000% a year. Earthquakes add more: NRCan’s model puts building losses at $0.14 a year per $1,000 of value, against $0.030 for the typical town. Radon around Akwesasne (Part) 59 is ordinary for Canada: 6.1% of tested homes over the guideline (6.6% typical). Akwesasne (Part) 59 grades C+ for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Akwesasne (Part) 59’s hazards
Four national sources, each read for Akwesasne (Part) 59: earthquakes, radon, past fires and flood studies.
What Akwesasne (Part) 59 faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Akwesasne (Part) 59 grades C+ for hazard risk
Seismic risk and radon set Akwesasne (Part) 59’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. Small fires and grass fires are largely missing from the national burned-area record.
Few fires near Akwesasne (Part) 59: 0% within 5 km, 0% within 25 km
Past fire around Akwesasne (Part) 59’s homes, from the national burned-area record, with the fuel within 5 km.
Low by Canadian standards: 0.000% of the land a year around Akwesasne (Part) 59, 0.000% for the typical Canadian town.
Homes in Akwesasne (Part) 59 sit on open or built-up ground (1% forest fuel within 5 km); the wider 25 km holds 5.8%.
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 Ontario · highest of 872
Little or nothing burns around Akwesasne (Part) 59 in a typical year; 639 of the 872 towns in Ontario share that, and Sioux Lookout leads at 0.16%.
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.
Only 7.5% of Canada’s 2,610 towns are above the low band, which holds 92%; Akwesasne (Part) 59, at a rounded zero, is far from them.
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.
Akwesasne (Part) 59 is on the flood map inventory: 3 studies, latest by Raisin Region Conservation Authority
What Canada’s Flood Map Inventory lists for Akwesasne (Part) 59: who studied flooding and where to see their maps.
Raisin Region Conservation Authority and others have studied flooding in areas that include Akwesasne (Part) 59: 3 studies, the latest from 2020.
| Study | By | Year | Status |
|---|---|---|---|
| Raisin River and St. Lawrence River Floodplain Mapping Update | Raisin Region Conservation Authority | 2020 | final · not public |
| St. Lawrence River Floodline Re-Mapping Study | Raisin Region Conservation Authority | 1994 | final · not public |
| Gray's Creek Flood Plain Mapping Study | Raisin Region Conservation Authority | 1988 | final · not public |
Towns with a flood study on file
Akwesasne (Part) 59 is one of the 69% of towns in Ontario 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.
No single decade dominates: 3 studies for Akwesasne (Part) 59 between the 1980s and the 2020s.
Study dates as the NRCan inventory lists them, one count per study touching Akwesasne (Part) 59.
The grade leaves flood out, since a study area says nothing about how many of Akwesasne (Part) 59’s homes are at risk.
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 Akwesasne (Part) 59 $0.14 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Akwesasne (Part) 59’s $0.14 is about 4.7 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 Ontario peaks in Alexandria ($0.21); Akwesasne (Part) 59, at $0.14, sits above the median of $0.043.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Akwesasne (Part) 59 sits above most of Canada’s 2,611 towns on earthquake risk; 20% are 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).
Roads, pipes and bridges aren’t in Akwesasne (Part) 59’s figure, nor landslides or tsunami: it is buildings and shaking.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Some radon around Akwesasne (Part) 59: 6.1% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
6.1% of tested homes around Akwesasne (Part) 59 were over the guideline, much like the typical Canadian town at 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
More homes top the guideline around Akwesasne (Part) 59 (6.1%) than in the typical town in Ontario (4%); 1% went over 600.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
37% of Canada’s 2,611 towns share Akwesasne (Part) 59’s band of 5 to 10%; 26% 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.
A survey sample isn’t a map: any home in Akwesasne (Part) 59 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). · Radon tests: one figure for all of the The Eastern Ontario Health Unit
Weather and fire alerts for Akwesasne (Part) 59
Environment and Climate Change Canada issues the weather alerts for Akwesasne (Part) 59; 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. |
Smoke and fire warnings for Akwesasne (Part) 59 come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Akwesasne (Part) 59
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Akwesasne (Part) 59 | Low | $0.14 | 6.1% | Yes |
| Cornwall 54,346 · 2.6 km | Low | $0.20 | 6.1% | Yes |
| Akwesasne 2,562 · 13 km | Low | $0.22 | 8.2% | None listed |
| South Glengarry 14,355 · 16 km | Low | $0.20 | 6.1% | Yes |
| Long Sault 14,602 · 17 km | Low | $0.20 | 6.1% | Yes |
None of the places around has more fire nearby than Akwesasne (Part) 59 (low); Cornwall comes closest (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Akwesasne (Part) 59 faces
Practical steps for Akwesasne (Part) 59’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. NRCan’s inventory says where flood mapping exists, not where water goes; the map’s owner is the authority for Akwesasne (Part) 59.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Akwesasne (Part) 59’s figure is its subdivision’s.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Akwesasne (Part) 59’s homes since 1986, a history of fire that may lower Risk but never raises it.
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Akwesasne (Part) 59 is its health region’s, the survey’s design unit.
Questions about flooding and hazards in Akwesasne (Part) 59
Is radon a problem in Akwesasne (Part) 59?
6.1% of the 99 homes Health Canada tested around Akwesasne (Part) 59 topped the guideline; your own house needs its own test.
How is Akwesasne (Part) 59’s Hazard risk Grade worked out?
Akwesasne (Part) 59’s Hazard risk grade is C+, built on earthquakes and radon with a one-sided wildfire input.
How big is the earthquake risk in Akwesasne (Part) 59?
In NRCan’s seismic model, Akwesasne (Part) 59’s buildings lose $0.14 per $1,000 of value in an average year.
Does Akwesasne (Part) 59 flood?
There is flood mapping for Akwesasne (Part) 59 on the national inventory, each study linked to its owner’s map, none of them graded.
Is Akwesasne (Part) 59 at risk of wildfire?
Hardly at all on record: 0% of the land within 25 km of Akwesasne (Part) 59 since 1986, a low band, though small grass fires aren’t mapped.
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).