Satellites captured footage of an underwater volcano eruption in a part of the sea that remains largely a mystery.

The volcano's activity has been described as rare and unusual, and coastal communities living around PNG's Bismarck Sea have been advised to be on heightened alert.

The South Pacific blast may have consumed its own methane — but using this idea against the greenhouse gas is controversial.

The Titan Ridge Volcano is erupting in the Bismarck Sea, sending ash and smoke into the sky and prompting authorities to warn of possible tsunamis in the area.

Roughly three-quarters of all volcanic activity on Earth takes place deep beneath the ocean surface, along chains of seafloor ...

Although researchers did predict the Axial Seamount would erupt in 2025, people on the Pacific coast shouldn't worry about its impact. Axial's eruptions are akin to the ones in Hawaii in which runny ...

WELLINGTON, New Zealand — New Zealand and Australia have sent military surveillance flights to assess the damage in Tonga caused by Saturday's huge undersea volcanic eruption. Communications with the ...

An underwater volcano off the Oregon coast could erupt late this year, scientists say. The volcano, known as Axial Seamount, is more than 4,900 feet beneath the Pacific Ocean and 300 miles off the ...

An underwater volcano in the Pacific, Axial Seamount, reveals a process that could challenge current theories about the Earth's crust.

The 2022 Hunga Tonga eruption revealed unprecedented methane destruction in the atmosphere, offering scientists new insights into combating this potent greenhouse gas.