Kaguyak caldera was formed following powerful dacitic explosive eruptions about 5800 years ago. An extensive apron of pyroclastic-flow deposits surrounds the 2.5-km-wide caldera. This view from the SW shows two post-caldera lava domes that form a peninsula into the lake and another lava dome that forms a small island that rises about 10 m above the center of the lake. The low notch at the far end of the caldera is a pre-caldera stream valley that was beheaded by caldera formation.

Copyrighted photo by Katia and Maurice Krafft, 1978.

Copyrighted image used with permission. All Rights Reserved. Contact photographer for any usage requests.

Kaguyak