Canada hosts over 200 potentially active volcanic centers, almost entirely in British Columbia and the Yukon, part of the Pacific Ring of Fire. Most are remote, poorly monitored, and pose localized rather than catastrophic risk.
| Volcano / Complex | Location | Type | Status / Last Activity | Key Features |
|---|---|---|---|---|
| Mount Meager | BC, Garibaldi Volcanic Belt | Stratovolcano | Potentially active; last eruption ~2,350 yr BP (Plinian, VEI 4–5, similar to 1980 St. Helens). 2010 massive landslide (50M m³). Monitored (seismic, gas). | Closest to Vancouver (150 km). Geothermal potential. |
| Mount Garibaldi | BC, Garibaldi Volcanic Belt | Complex stratovolcano | Dormant; last eruption ~10,000–13,000 yr BP. Glacially eroded; multiple cones (Atwell, Dalton). | Iconic landmark; popular climbing/skiing. |
| Mount Cayley | BC, Garibaldi Volcanic Belt | Stratovolcano | Active (Holocene); last eruption ~7,000 yr BP. Fumaroles, hot springs. Seismic swarms 2000s. | Geothermal target; difficult access. |
| Castle Rock | Yukon, Northern Cordilleran Volcanic Province | Alkaline basalt cinder cone | Young; eruptions ~1,000–2,000 yr BP. Lava flows, tephra. | Remote; minimal monitoring. |
| Mount Edziza | BC, Northern Cordilleran Volcanic Province | Shield volcano / complex | Potentially active; last eruption ~1,300 yr BP. Largest volcanic complex in Canada (1,000 km²). Obsidian source for Indigenous trade. | Edziza Provincial Park; hiking, cultural significance (Tahltan). |
| Hoodoo Mountain | Yukon, Kluane Volcanic Belt | Subglacial / tuya / cinder cone | Active; last eruption ~1,000 yr BP (subglacial). Flat-topped, ice-marginal. | Kluane National Park UNESCO site; glaciovolcanic features. |
| Level Mountain | BC, Northern Cordilleran | Massive shield | Dormant; last ~2.5 Ma. Largest volume Canadian volcano. | Nahlin Plateau; caribou range. |
| Tseax Cone | BC, Nass Valley | Cinder cone | Historic; erupted ~1700 CE (Nisga'a oral history). Lava flow 22.5 km, killed ~2,000. Canada's deadliest eruption. | Nisga'a Memorial Lava Bed Park; culturally sacred. |
While eruptions are rare (centuries to millennia), the 2010 Meager landslide and 2021 Lytton wildfire (pyrocumulonimbus) highlight cascade hazards. Growing population in Sea-to-Sky corridor and geothermal exploration increase exposure. Indigenous knowledge (Nisga'a, Tahltan) preserves eruption histories absent from instrumental record.