Satellite images show an undersea volcano erupting near the South Pacific nation of Tonga on Saturday. The country’s ...
A new video from Japan’s maritime authorities captures an underwater volcano bursting through the sea surface in a violent plume of ash, steam and rock, turning a patch of open ocean into a churning ...
Japan’s Kikai Caldera, a massive underwater supervolcano, is showing signs of activity after 7,300 years. Explore what ...