Subduction of the Pacific Plate beneath the North American Plate creating the Aleutian trench and volcanic island arc (Credit: Alaska Volcano Observatory). Click image for a larger view.

The Farallon plate and the North American plate once formed a subduction zone along the continent's west ... The Farallon ...

A fascinating new study reveals that a massive chunk of Earth’s crust, buried deep beneath the Midwest, is slowly pulling ...

Off the coasts of southern British Columbia, Washington, Oregon and northern California lies a 600 mile-long strip where the Pacific Ocean ... the overriding North American plate.

An area in the Pacific Northwest lies on a 'subduction' zone where a tectonic plate slides underneath the North American ...

Six of the majors are named for the continents embedded within them, such as the North American ... Juan de Fuca plate is largely responsible for the volcanoes that dot the Pacific Northwest ...