Assessing volcanic threat levels across 28 Canadian volcanoes in western Canada
By
Alexander M. Wilson
Summary
This article assesses the relative threats posed by 28 Canadian volcanoes in western Canada (British Columbia and Yukon), which are part of the Pacific "Ring of Fire." It uses a methodology developed by the US Geological Survey to evaluate threats to people, aviation, and infrastructure. With at least 347 Pleistocene to Holocene volcanic vents identified in the region (54 active during the Holocene), the annual probability of any volcanic eruption in Canada is 1/200, while a major explosive eruption has a probability of 1/3333. The paper provides a systematic threat ranking of Canadian volcanoes based on hazard, exposure, and vulnerability factors.
Source
bskyAssessing volcanic threat levels across 28 Canadian volcanoes in western Canadacdnsciencepub.comKey quotes
· 3 pulledWestern Canada lies within a zone of active tectonism and volcanism and is part of the Pacific 'Ring of Fire'.
There is a rich and diverse history of Quaternary volcanism, with at least 347 Pleistocene to Holocene vents in British Columbia and the Yukon, 54 of which were active during the Holocene.
The annual probability of any volcanic eruption in Canada is 1/200, while the annual probability of a major explosive eruption is 1/3333.
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