Submarine volcanoes, volcanic structures hidden beneath the ocean surface, play a vital role in shaping Earth’s geology and marine ecosystems. Formed through tectonic plate movements, rising magma, ...

Add Yahoo as a preferred source to see more of our stories on Google. On land, a volcanic eruption is dramatic—columns of ash, fountains of lava, a complete remaking of the terrain. But terrestrial ...

Krakatau, a volcanic island in Indonesia, killed more than 30,000 people when it erupted in 1883. One might assume that volcanic debris posed the major threat, yet many of the victims died from a ...

Learn how an eruption of the Yellowstone supervolcano would affect North America, and why one isn't likely to happen in the foreseeable future.

Learn how stress inside a volcano can make gas bubbles form early, helping explain why some eruptions stay quiet instead of exploding. One of the most explosive volcanoes in U.S. history began its ...

A volcano that has been silent since about 1550 began erupting after a big quake. A radar satellite recorded its lava spreading, twice every 12 days.

Argon-argon dating” is a common technique scientists use to reveal when a geological event, such as a volcanic eruption, took place. The problem is that it’s difficult to apply to recent occurrences.

Since Mount Shinmoedake began erupting on June 22, experts are continuing to closely monitor the southern Kyushu volcano in the event the volcanic activity veers from past flare-ups. At 1,421 meters ...