What kind of tectonic boundary is found in Washington state and around most the pacific ocean?

The type of tectonic boundary found in Washington state and around most of the Pacific Ocean is a convergent boundary. Convergent boundaries occur when two tectonic plates move towards each other. In the case of the Pacific Ocean, the Pacific Plate is moving westward and colliding with the North American Plate, which is moving eastward. This collision has resulted in the formation of the Cascade Range, a series of volcanoes that run from British Columbia in Canada to California in the United States. The boundary between the Pacific Plate and the North American Plate is also responsible for the numerous earthquakes that occur in Washington state.