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Crater Lake Volcano, also known as Mount Mazama had a massive eruption approximately 7,700 years ago, forming a deep caldera. The last known eruption took place about 4,800 years ago underwater.

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Why does Crater Lake have an island in it?

The island in Crater, called Wizard Island was formed by small volcanic eruptions that occurred after the Crater Lake caldera formed but before the volcano went extinct.


What was the volcano that made crater lake?

Crater Lake is in the caldera of Mount Mazama.


Is the volcano Crater Lake on a hotspot?

No. Mount Mazama, the volcano that holds Crater Lake, formed as a result of a subduction zone.


What is the lake in the crater of a volcano?

Taal Volcano in Philippines....


Is crater lake a shield volcano?

No. Crater Lake is in the caldera of Mount Mazama, which is a stratovolcano.


What type of volcano is Lake Rotorua?

crater lake....


Is crater lake on a volcano?

A volcano crater filled with water---CALDERA


What are the positive and negative effects of crater lake eruptions?

balls


Was crater lake formed by a meteor?

No, Crater Lake was formed by the collapse of a volcano known as Mount Mazama. Around 7,700 years ago, a massive eruption caused the volcano to collapse into itself, creating a caldera that eventually filled with water to form what is now Crater Lake.


What land forms did Tower Hill volcano make?

Tower Hill volcano in Victoria, Australia created a maar volcanic crater formed by explosive eruptions when magma came into contact with groundwater. The volcano is situated within a larger volcanic field known as the Newer Volcanics Province. The unique landforms include a circular crater with a lake inside.


Crater Lake is a depression in a volcano that is known as a?

caldera.


Is Wizard Island an active volcano a extinct volcano or dormant volcano?

yes it is because it spits out fumes that prove it is active