This is a lava skylight. They form when the roof of a lava tube collapses, exposing molten lava below. This is Kïlauea Volcano in Hawaii.
Video courtesy: USGS
[ Ссылка ]
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This is a lava skylight. They form when the roof of a lava tube collapses, exposing molten lava below. This is Kïlauea Volcano in Hawaii.
Video courtesy: USGS
[ Ссылка ]