Crater Lake partly fills one of the most visually spectacular calderas of the world, an 8-by-10-km (5-by-6-mi) basin more than 1 km (0.6 mi) deep formed by collapse of the volcano known as Mount Mazama …

Oct 31, 2023 · These eruptions culminated 7,700 years ago in the largest explosive eruption in the Cascades during the past 1 million years, and one of the Earth’s largest eruptions in the past 12,000 …

Before Crater Lake came into existence, a cluster of volcanoes dominated the landscape. This cluster, called Mount Mazama (for the Portland, Oregon, climbing club the Mazamas), was destroyed during …

Oct 23, 2023 · The long history of volcanism at Mount Mazama, the volcano that houses Crater Lake, suggests that this volcanic center will be active in the future. Future eruptions will likely occur within …

The Cascade Range, in which Mount Mazama and Crater Lake sits, is a perfect example of a fundamental concept in geology. It involves a common interaction between tectonic plates and the …

The long history of volcanism at Mount Mazama, the volcano that houses Crater Lake, suggests that this volcanic center will be active in the future. Future eruptions will likely occur within the caldera and …

Oct 23, 2023 · Crater Lake is the remnant of Mount Mazama, which erupted catastrophically 7,700 years ago to form the caldera. Wizard Island in lake and Mount Scott is peak on right shore.

Oct 30, 2023 · The climactic eruption of Mount Mazama devastated the terrain for tens of kilometers from the volcano, sent pyroclastic flows as far as 70 km (43 mi) down every valley heading on the …

Several post-caldera volcanic features are present at Crater Lake, although only Wizard Island breaks the lake surface. The youngest post-caldera volcano is a small rhyodacite dome in Crater Lake on …

Oct 29, 2023 · The last known eruption at Crater Lake occurred when a small lava dome erupted underwater on the east flank of the base of Wizard Island about 4,800 years ago. Since that time, the …