A fiery force beneath the ocean is reshaping Tonga’s Home Reef, growing an island through eruptions over the past few years.

Satellites have detected large volumes of methane spewing from Mount Fentale’s crater following months of earthquakes that ...

Scientists on the AKMA3 ocean expedition discovered an exceptional underwater feature consisting of a mud volcano in the ...

A red-hot lava flow two miles long has been attracting crowds to the slopes of Mount Etna on the island of Sicily, Italy.

For the last 10 months, a volcano in Alaska has been brewing for an eruption, and now it's closer than ever. Here's what the ...