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

A terrifying underwater phenomenon from a 'sharkcano' sees sharks spewing out into the ocean because of a submarine volcano called Kavahi, located in the Pacific Ocean ...

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 ...

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 ...

Can a shark survive inside one of the most explosive underwater volcanoes on the planet? Learn about these sharks and their unusual habitat.

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 ...