Question

How did Crater Lake, Oregon form? Thousands of years of erupting pyroclastic material from the volcano created a closed wall around the primary cone. Then that space was filled with water eventually, and the former cone is known as Wizard Island. About 1500 meters of summit of a composite volcano collapsed after an explosive eruption of about 50 cubic kilometers of pyroclastic material. Later the caldera was eventually filled with water. About 1500 meters of summit of a shield volcano collapsed after an explosive eruption of about 50 cubic kilometers of pyroclastic material. Later the caldera was eventually filled with water. About 1500 meters of summit of a composite volcano collapsed as a result of a gradual subterranean drainage of the magma chamber under the volcano leaving the summit unsupported. Later the caldera was eventually filled with water. About 3500 meters of summit of a composite volcano collapsed after an explosive eruption of about 500 cubic kilometers of pyroclastic material. Later the caldera was eventually filled with water.

Answer 1

Answer:

About 3500 meters of summit of a composite volcano collapsed after an explosive eruption of about 500 cubic kilometers of pyroclastic material. Later the caldera was eventually filled with water.

Explanation:

Crater Lake is one that is found to occupy a basin in Mount Mazama in south-central Oregon in the western United States. Mount Mazama, which is about 12,000 ft (roughly 3,700m) collapsed during an intense volcanic eruption, which led to the formation of volcanic depression called caldera.  

Pyroclastic flows of pumice and ash affected the nearby areas which also included the water body that drained the mount  Mazama.