The Recent Megaeruption in Alaska; The Emmons Lake Caldera

Imagine 150 Mount Saint Helens volcanoes right next to each other explosively erupting like witnessed in 1980. Although difficult to imagine, this portrays the massive scale of an explosive eruption which occurred at the Emmons Lake caldera approximately 130,000 years ago. Located in Alaska, this eruption formed an 11 mile long and 7 mile wide depression in the ground which is more than 2,000 feet deep. This video discusses that eruption, and the complex that is the Emmons Lake Caldera. Thumbnail Photo Credit: Screenshot/Frame Grab from a video filmed by USGS scientist Don Swanson, Produced by Liz Westby, Geologist, USGS Cascades Volcano Observatory, Public Domain, If you would like to support this channel, consider becoming a patron at Another way to support this channel is to make an order via our gemstone and geology related etsy store at . T