Hoodoo Mountain is one of the eleven Canadian volcanoes associated with recent seismic activity: the others are Mount Garibaldi, Castle Rock, Mount Cayley massif, The Volcano, Crow Lagoon, Silverthrone Caldera, the Mount Meager massif, the Mount Edziza volcanic complex, Wells Gray-Clearwater volcanic field and Nazko Cone. Seismic data suggests that these volcanoes still contain living magma chambers, indicating possible future eruptive activity. Although the available data does not produce a clear conclusion, these observations are further indications that some of Canada's volcanoes are potentially active, and that their associated hazards may be significant. The seismic activity correlates both with some of Canada's most youthful volcanoes, and with long-lived volcanoes with a history of significant explosive activity, such as Hoodoo Mountain.