 The most recent major catastrophic eruption in the Garibaldi Volcanic Belt was from the Mount Meager massif 2,350 BP, which is Canada's most recent major catastrophic eruption.The Garibaldi Volcanic Belt contains 2 extra volcanic fields, the Franklin Glacier Complex and the Silverthrone Caldera, which lie 140 and 190 km northwest of the main volcanic belt.The Cascadia subduction zone is a 680 mi (1,094 km) long fault, running 50 mi (80 km) off the west-coast of the Pacific Northwest from northern California to Vancouver Island.