The region known for its many active volcanoes and geothermal features is the Pacific Ring of Fire. This area encircles the Pacific Ocean and is characterized by frequent earthquakes and volcanic eruptions due to tectonic activity. The Ring of Fire includes countries like Japan, Indonesia, and Chile, which are home to some of the world's most active volcanoes. This geological zone is significant for studying earth processes and provides rich resources, including minerals and geothermal energy.