active margins

Active margins are the edges of tectonic plate boundaries where earthquakes, volcanic activity, and significant geological changes frequently occur. These areas are characterized by ongoing movements as plates interact, such as subduction (one plate sliding beneath another), collision, or lateral sliding. Because of this dynamic activity, active margins are often associated with features like deep ocean trenches, mountain ranges, and volcanic zones. They are contrasted with passive margins, which are relatively quiet and stable. Understanding active margins helps in assessing natural hazard risks and grasping Earth's ongoing geological processes.