The tiny Juan de Fuca plate is largely responsible for the volcanoes that dot the Pacific Northwest of the United ... of the plates creates three types of tectonic boundaries: convergent, where ...

While it's the reigning theory now, the road to acceptance was long and bumpy for plate tectonics ... Pacific plateaus, the researchers hope their findings spur further explorations to map ...

Earthquakes happen every day all over the world, along both tectonic plate edges and interiors ... each other and are common in places like California where the Pacific Plate is moving northwest ...