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Off the coast of British Columbia is the Cascadia Subduction zone, which also extends south to northern California. Here a section of the ocean floor is slipping under North America. Water it carries down alters the chemistry of the hot rock in the mantle, causing some of it to melt, which allows volcanoes to form. No other subduction zones border Canada, nor are there any active hot spots or rifts.

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6y ago
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11y ago

Off the west coast of North America, spanning from northern California to British Columbia is the Cascade Subduction zone. Here an oceanic plate called the Juan De Fuca Plate is pushing into and sliding under the North American Plate. As it does this it takes seawater and other easily vaporized substances with it. These volatiles as they are called seep into the surrounding hot mantle, lowering the melting point of the rock. This causes some of it to melt and form magma. This magma then rises through the crust to form volcanoes.

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11y ago

plate tectonic movements are the cause of volcanoes

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12y ago

Oceanic plate subduction is still actively occurring on parts of the west coast of North America. Not so on the eastern coast.

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12y ago

The west coast of Canada sits on a fault line--a part of the infamous Ring of Fire, well-known for being an earthquake center.

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11y ago

It is the result of subduction of the Juan de Fuca plate beneath the North American plate.

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9y ago

Volcanos like the Northwest because it is known for it's icecream

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Q: Why are there volcanoes on the west coast of Canada?
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Related questions

Canada borders in the west on the?

Canada's west coast borders the Pacific Ocean.


Which ocean is on canada's west coast?

No, most of Canada's coastlines are on the "Arctic Ocean".


Which province is in the region of the West Coast of Canada?

British Columbia is the western coast in Canada


Which province is in the region of the West Coast in Canada?

British Columbia is the western coast in Canada


Why are volcanoes on the west coast?

It is probably because the East Coast is not beside faults or at the edge of and tectonic plates. If you look at the West Coast, California has a fault. This causes volcanoes in Washington and Oregon.


Which province of Canada has Hudson Bay as a west coast?

provincthat has Hudson bay as a west coast


Do moose live on the west coast of Canada?

Yes, moose live on the west coast of Canada but they do not live on Vancouver island or other islands.


Is Canada in the east coast?

Canada has an East Coast on the Atlantic Ocean, a West coast on the Pacific and a North Coast on the Arctic Ocean. It is "in" or has all of them.


Is Canada in the west coast?

Canada is not "in" the west coast, but it does "have" a west coast. Take a look at your atlas and find Canada. It is the second-largest country in the world. Then find the Pacific Ocean. It is the largest ocean in the world. Canada's west coast runs along the Pacific Ocean. Canada has the longest coastline of any country in the world. Canada's coastline includes not only the Pacific Ocean, but also the Atlantic Ocean and the Arctic Ocean.


What part of the U S are volcanoes most common?

In the United States, volcanoes are mostly found on the West Coast. The East Coast is not a subduction zone, and therefore does not have volcanoes. The West coast, however, is the location where the Juan de Fuca Plate and the North American Plate collide along the San Andreas Fault. This convergent boundary forms mountains and volcanoes, such as the Cascade Mountains.


How far is is from the west coast of Canada to Winnipeg?

Depends on where you're starting on the west coast. It's about 2300km from Vancouver.


Is New Brunswick west of Canada?

Well, we are a part of Canada, and we are on the EAST coast.