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: | September 8, 2009 12:00 AM |
| Volcano(es): | Katmai |
| Photographer/Creator: | Read, Cyrus |
Citation Information:Image courtesy of AVO/USGS.
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