A 2022 satellite photo shows a large plume of discolored water rising from the undersea Kavachi volcano, during an eruption ...

The Axial Seamount submarine volcano exhibits an inflation–deflation cycle comparable to similar volcanoes on land. Measurements of ocean bottom pressure document the entire inflation ...

An undersea volcano, 470 km off the coast of Oregon, is likely to erupt sometime in 2025. Forecasting eruptions more than hours ahead is considered “pretty unique” and this much of an advanced ...

Charlotte Lytton and Matthew Abbott traveled to Tonga to report this story. All photographs were made in May 2023. Sept. 1 at 6:00 a.m. Warning: This graphic requires ...

it's possible we'll discover unknown underwater volcanoes. 19:58 There are many things we don't understand, and it's a lot of work, but it's an exciting field. Approximately 60% of the world's ...

It could mean a volcano that erupts regularly but is currently quiet, or it could refer to a volcano that probably won't ever erupt again. 5 fast facts about volcanoes Volcanic ash is made of ...