Halemaumau crater in the Kilauea volcano caldera Webcam

Halemaumau is a crater in the caldera at the summit of the Kilauea volcano, Hawaii. Part of the Hawaiian Volcanic National Park. The current size of the rounded crater is 770 by 900 meters, the depth varies depending on the level of the lava lake at its bottom from 30 to 150 meters.

Source: https://usgs.gov