The Nevado del Tolima, located in Colombia, is part of a larger Ring of Fire. It rises to an elevation of 5200 masl. The last major eruption took place about 3600 years ago. Minor explosive eruptions have been recorded in the 19th and 20th centuries.
Prior to 1980, Mount St. Helens had the shape of a conical, youthful volcano sometimes referred to as the Mount Fuji of America. During the 1980 eruption the upper 400 m of the summit was removed by a huge debris avalanche, leaving a 2 km x 3.5 km horseshoe-shaped crater now partially filled by a lava dome and a glacier. Mount St. Helens is a volcano produced from an oceanic-continental convergent boundary.
Mount St. Helens is a volcano produced from an oceanic-continental convergent boundary.
Why is it called the "Ring of Fire"?
Why does it exist where it does?
