So he rappelled into the heart of the volcano. Standing on the crater floor, he couldn't see the lake itself, which was above him within the cone of cooled lava. But he could hear its hissing ...
An curved arrow pointing right. The Nyiragongo volcano saw its last major eruption in 2002. When it's not erupting, it's home to the world's largest lava lake. Follow Tech Insider: On Facebook ...
Kilauea’s lava lake is stagnant and crusted over. Before this event, Mauna Loa had not erupted since 1984, said the US Geological Survey (USGS). The enormous volcano covers half of Hawaii Island.