Aerial images show the devastation in Tonga left behind after a violent offshore volcanic eruption sparked a tsunami and clouded the sky with ash. Communications with the island nation have largely ...

An advisory was previously issued for the entire U.S. West Coast and Alaska. The National Tsunami Warning Center issued a tsunami advisory for American Samoa after another undersea volcano eruption ...

Indonesia's Mount Merapi volcano spewed avalanches of hot clouds in eruptions overnight Thursday that forced about 250 residents to flee to temporary shelters and left ash blanketing nearby villages ...

In 2015, a new island emerged and endured within the Tonga archipelago, a rather rare occurrence. Since its appearance, life has begun to flourish there, ...

The 1967-1968 eruption of Metis Shoal, Tonga, was evidentially similar to the frequent shallow submarine eruptions of the inner island arc of Tonga. The eruption began about 10 December 1967, and an ...