January 21, 2011 - Nighttime view of summit caldera with lava lake, Nyiragongo Volcano, Democratic Republic Congo.

democratic republic of the congo goma mount nyiragongo nyiragongo bright burning caldera color image cracked danger earth science eruption fracture gas geology geoscience glow heat horizontal hot illuminated interior land feature landform lava lava lakes liquid magma melting molten natural disasters natural phenomenon night no people outdoors photography physical geography pit crater power in nature red smoke terrace volcanic volcanic activity volcanic craters volcanic rocks volcano wall