One of the most active undersea volcanoes in the world, it has erupted three times over the past 30 years. In November, ...

Off the coast of Oregon, a massive undersea volcano ... As one of the world’s most active submarine volcanoes, Axial Seamount ...

After suspecting the presence of a series of underwater volcanoes near the Cook Islands, researchers have now mapped out the ...

Before then, the volcano's most recent major eruptions were in 2016, 2014, 2007 and 2003. In the past, researchers also sighted ephemeral islands up to half a mile (1 km) wide being birthed by the ...

This unusual image shows a large plume of discolored water rising toward the Pacific Ocean's surface from the Kavachi volcano, also known as "sharkcano," during an undersea eruption. Kavachi is a ...

Richard Fiske is internationally known for his work with volcanoes; in certain circles in Japan he is a legend. For several years this Smithsonian geologist has been studying undersea explosive ...

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 ...

Credit: @ Didier Marti/Getty Images A series of relatively young underwater volcanoes has been discovered under the waves of the Pacific Ocean, some of which may even be active. The volcanoes were ...

Gary Massoth is a chemical oceanographer with NOAA's Pacific Marine Environmental Laboratory in Seattle. Massoth is a member of the Vents Program's team of interdisciplinary scientists who are trying ...

Eruptions from an undersea volcano continued spewing plumes ... Iwoto is one of 111 active volcanoes in Japan and as such the Japan Meteorological Agency has set up an around-the-clock observation ...

GUARDIAN's long-term objective is to augment early warning systems. Triggered by earthquakes, undersea volcanoes, and other Earth-shaking forces, tsunamis can devastate coastal communities.