Fountains from the south vent at Kilauea's summit crater soared 1,300 feet (400 meters) into the air, the U.S. Geological ...

Their huge size is peculiar and has forced scientists to throw out their pet theories on how planetary lava tunnels form.

Mount Fuji shows no immediate signs of erupting, but officials in Tokyo have updated guidelines to follow in the event it ...

The USGS said on its website following the quake in July: "Following the M8.8 Russian Kamchatka Peninsula Earthquake, the ...

A collaborative research team led by University of Tasmania scientists has returned from a major 54-day voyage on CSIRO ...

However, this work comes with a unique set of obstacles — many of them shaped by the rugged and unpredictable environments in ...

Active volcanoes, pristine lakes, and epic wildlife sightings await at Katmai National Park and Preserve in Alaska.

Cataclysmic events, such as earthquakes and volcanic eruptions, may be triggered by supercritical fluids, according to ...

In late January, something began to stir beneath the idyllic Greek islands of Santorini, Amorgos, and Anafi. These Aegean ...

Researchers have built on past studies and introduced new methods to explore the nature and role of subsurface fluids, ...

An underground map of the supervolcano at the Yellowstone National Park has revealed something astonishing about the park's subsurface.  USGS researchers collaborated with Oregon State University and ...