Not all caldera are made the same, but we got to watch one type form during the 2014-15 Holuhraun eruption in Iceland. The post Think Explosions Are the Only Way to Form Calderas? Think Again appeared first on WIRED.
Hood has joined St. Helens in a reminder that the Cascades are full of potentially active volcanoes. The post A New Earthquake Swarm Is Rocking Oregon's Mt. Hood appeared first on WIRED.