Like seams of a baseball, tectonic plates wrap around Earth. The 2nd largest plate on Earth is the North American Plate. Each plate moves deceptively slow. For example, the North American shifts just centimeters every year.
Earth’s tectonic plate boundaries are strange because they often contain both continental and oceanic crust.
North American Plate Movement
The east-side of the North American Plate straddles the Eurasian Plate and African Plate. This is the Mid-Atlantic Ridge where divergent tectonic plates pull apart from each other. In turn, we find some of the youngest geologic rocks at these mid-oceanic ridges.
FARALLON PLATE: The Farallon Plate was an ancient oceanic plate that sunk down subducting below California. In Oregon and Washington, there’s still a small piece of it that exists which is now called the Juan de Fuca plate. During the time of Pangaea, the Farallon plate was largely responsible for pulling North America westward away from Europe and Africa.
The interior of the North American plate contains a giant granitic craton. It’s believed that the North American (Laurentian) craton is 4 billion years old. The total size of this plate is 75,900,000 km2 making it the second largest of the 7 major tectonic boundaries on Earth.
Pick your major tectonic plate
If you live in Canada, the United States, or Mexico, you’d most likely be situated on the North American major plate.
But what are some of the other major plates in the world? Read some of the articles below to familiarize yourself with the geography of plate tectonics.