Yes, the Peru-Chile Trench, also known as the Atacama Trench, is an active subduction zone. It is formed where the Nazca Plate is being pushed beneath the South American Plate.
This subduction process is responsible for the high level of seismic activity in the region, including frequent earthquakes and volcanic eruptions along the Andes mountain range. The interaction of these tectonic plates not only shapes the landscape but also poses significant geological hazards to the surrounding areas.
Furthermore, the trench has been instrumental in the geologic history of South America, contributing to the uplift of the Andes and influencing the region’s climate and ecosystems. Because of the ongoing subduction, the Peru-Chile Trench continues to be one of the most studied and monitored geological features in the world.