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.

Update: Episode 34 of the ongoing Halemaʻumaʻu eruption ended abruptly at 7:03 a.m. HST on Oct. 1 after just over 6 hours of ...

The discoveries challenge the popular image of Yellowstone as a ticking time bomb with a single massive underground pool of molten rock.

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 ...

Private properties, schools, fire departments and others play a key part in monitoring temblors in the Pacific Northwest.

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 ...