Silverthrone Caldera British Columbia

		The approximate outline of the Silverthrone Caldera
Elevation	3,160 m (10,367 ft) [1][2]
Prominence	975 m (3,199 ft)
Listing	List of volcanoes in Canada List of Cascade volcanoes	The Silverthrone Caldera is a potentially active[3] caldera complex in southwestern British Columbia, Canada, located over 350 kilometres (220 mi) northwest of the city of Vancouver and about 50 kilometres (31 mi) west of Mount Waddington in the Pacific Ranges of the Coast Mountains. The caldera is one of the largest of the few calderas in western Canada, measuring about 30 kilometres (19 mi) long (north-south) and 20 kilometres (12 mi) wide (east-west).[1] Mount Silverthrone, an eroded lava dome on the caldera's northern flank that is 3,160 metres (10,370 ft) high may be the highest volcano in Canada.[1] The main glaciers in the Silverthrone area are the Pashleth, Kingcome, Trudel, Klinaklini and Silverthrone glaciers. Most of the caldera lies in the Ha-Iltzuk Icefield, which is the largest icefield in the southern half of the Coast Mountains; it is one of the five icefields in southwestern British Columbia that thinned between the mid-1980s and 1999 due to global warming.[4] Nearly half of the icefield is drained by the Klinaklini Glacier, which feeds the Klinaklini River.[4] The Silverthrone Caldera is very remote and rarely visited or studied by geoscientists, such as volcanologists. It can be reached by helicopter or— with major difficulty— by hiking along one of the several river valleys extending from the British Columbia Coast or from the Interior Plateau.[1] end quote under heading "Silverthrone Caldera" at Wikipedia.org  I have often heard about the Yellowstone Caldera that many people worry about going off as in the movie 2012. But I hadn't heard ever about the Silverthrone Caldera which is one of the volcanic sites listed in the “Cascadia Subduction Zone,  under the subheading,  2.4 Prediction of the next major earthquake  Under the above heading it lists the following volcanoes within the Cascadia Subduction Zone which also extends out to sea from northern California on up into British Columbia. It appears that the Silverthorne Caldera in British Columbia is the Northernmost site within the Cascadia Subduction Zone. Silverthrone Caldera Mount Meager Mount Cayley Mount Garibaldi Mount Baker Glacier Peak Mount Rainier Mount St. Helens Mount Adams Mount Hood Mount Jefferson Three Sisters Newberry Volcano Mount Mazama Mount McLoughlin Medicine Lake Volcano Mount Shasta Lassen Peak Black Butte