Katmai caldera, Katmai National Park and Preserve. The caldera formed on June 6-7, 1912, in response to withdrawal of magma that vented at Novarupta, 10 km west, at the head of the Valley of Ten Thousand Smokes. The caldera walls rise 250-800 m above the lake, which is 250 m deep and still filling.

Katmai caldera, Katmai National Park and Preserve. The caldera formed on June 6-7, 1912, in response to withdrawal of magma that vented at Novarupta, 10 km west, at the head of the Valley of Ten Thousand Smokes. The caldera walls rise 250-800 m above the lake, which is 250 m deep and still filling.

Date: Sep 8th, 2009
Volcano(es): Katmai
Photographer: Read, Cyrus
URL: avo.alaska.edu/image/view/19191
Image courtesy of AVO/USGS.
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
Full Resolution.