Recent volcanic activity in western Canada is not widely recognised, despite the occurrence of at least four important eruptions over the last 4,000 years. This is not surprising given the low eruption rates, the remoteness of Canadian volcanoes, and the low population density in volcanic areas.
One of the few events with any confirmed observations is that of the 1700’s eruption of the Tseax volcano (Wil Ksi Baxhl M’ihl) in British Columbia. Although no written records exist, a rich oral history describes in detail the most recent eruption of the volcano, one of Canada’s worst natural disasters.
The largest recent explosive eruption in Canada occurred 2400 years ago at the Mount Meager Volcanic Complex, 65 kilometres northwest of Pemberton, B.C. This eruption was similar in size to the 1980 eruption of Mount St. Helen’s and sent ash over 530 kilometres east into Alberta.
In his presentation, Dr. Williams-Jones describes these historical volcanic eruptions and explain the importance of studying Canadian volcanoes to better understand their eruptive histories and forecast any future eruptions.