The Ring of Fire is a horseshoe-shaped area in the Pacific Ocean basin characterized by a high level of tectonic activity, including numerous earthquakes and volcanic eruptions. This region is formed by the boundaries of several tectonic plates, particularly where oceanic plates subduct beneath continental plates, leading to the creation of deep ocean trenches, volcanic arcs, and mountain ranges. It is home to around 75% of the world's active volcanoes and is crucial for understanding global geological processes.