Concentric circles of rocky hills and valleys in South Africa tell the story of a billion-year-old collapsed volcano.
About 1,500 volcanoes are active on our planet, though only about a third have erupted during recorded history. Here are some that potentially could pose a threat to major inhabited areas.
Sinabung rumbled back to life in 2013, driving 10,000 people so far from their homes.
Thanks to advances in sensing technology, it's now possible to watch an undersea volcano blow in real time. Continue reading →
After 35 years, the scars of the Mount St. Helens volcano eruption are still clearly evident in a satellite image. Continue reading →
A volcano in the Galapagos Islands erupted Monday, raising fears for the world's only colony of pink iguanas.
A new volcano model helps discover a trigger that could forecast eruptions. Continue reading →
Lots of water leads oceanic crust to melt, giving some volcanoes the potential to erupt explosively. Continue reading →
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