The Ring of Fire is a horseshoe-shaped area surrounding much of the Pacific Ocean basin that experiences high levels of seismic and volcanic activity. It contains over 75% of the world's active and dormant volcanoes and is home to approximately 90% of the world's earthquakes, including 81% of the largest earthquakes. The Ring of Fire is associated with tectonic plate boundaries and movements and results in a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts around the Pacific Ocean.