By 5:30 a.m., 500 acres of lava covered the caldera floor, a large basin that forms when a volcano erupts and collapses, according to the National Park Service. Photos and videos obtained by CNN ...
A DEADLY volcano that spits bright blue lava contains the world’s largest acid lake – capable of melting human skin. Kawah Ijen, is a gargantuan volcano on the island of Java, ...
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