A vast eruption beneath the southwest Pacific Ocean has been confirmed as the largest volcanic event ever recorded on the ocean floor. The 2012 explosion at the Havre volcano, near New Zealand, ...

A potentially explosive underwater volcano in the Pacific is showing alarming signs of activity. With pressure building and unusual tremors detected, scientists are on high alert. This underwater ...

Dubbed the Kikai caldera, this mostly-underwater caldera located south of Japan’s Ryuku Islands last erupted 7,300 years ago, ...

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 off Tonga erupted on Saturday, triggering tsunami warnings and evacuation orders in Japan and causing ...

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 ...

Scientists are predicting that a mile-long volcano off the U.S. West Coast will erupt this year. The Axial Seamount, an underwater volcano located about 300 miles off the coast of Oregon, is ...

Hunga Tonga-Hunga Ha'apai (Hunga Tonga for short) erupted on January 15 2022 in the Pacific Kingdom of Tonga. It created a tsunami which triggered warnings across the entire Pacific basin, and sent ...

SAN FRANCISCO — Though volcanoes dot the face of the planet and can be found on every continent, researchers say most of Earth's volcanic eruptions happen in a dark and faraway place: deep underwater.

The island forged in fire off the coast of Japan in October this year is still growing, as seen in a Copernicus Sentinel-2 image caught on Nov. 27. When you purchase through links on our site, we may ...

The Kikai Caldera. (Seama Nobukazu/CC BY 4.0) About 7,300 years ago, a volcano off Japan's Kyushu island unleashed what remains the largest known eruption of the Holocene, our current geological epoch ...