Klyuchevskoy volcano in eastern Russia began erupting shortly after a powerful 8.8 magnitude earthquake and several aftershocks shook the same area. "A descent of hot lava is observed on the western ...

Some park visitors refused to evacuate during Kilauea's hazardous eruption.

Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help planners anticipate future mudflows.

This photo shows the exposure of the Mount Jackson Rhyolite Series vitrophyre at Gibbon River. Boulders of weathered, lichen-covered rock show how easy it is to overlook these new units. (Photo by Liv ...

Tephrochronology is a specialised stratigraphic method that utilises volcanic ash (tephra) layers to synchronise, date and correlate geological, palaeoenvironmental and archaeological sequences. By ...

Kilauea volcano put on another spectacular show Friday night with lava fountaining in Halemaumau crater reaching new heights for the latest eruption, which began nearly 10 months ago. Scientists with ...

An earlier version of this story was published in 2024. It looks like just another hill in Sussex County, but you wouldn’t have wanted to have been standing there 420 million years ago. That’s about ...

That’s the word U.S. Geological Survey volcanic experts used to describe a muddy eruption at Black Diamond Pool in Yellowstone National Park on Saturday morning. Video shared by the USGS on social ...

Ever wonder what it would look like to be engulfed in a lava fountain as you choke on volcanic ash and burn to death? No? Well, you’re wondering now, aren’t you? Don’t worry, what you’re about to see ...

Our Earth is around 4.5 billion years old. Way back in its earliest years, vast oceans dominated. There were frequent volcanic eruptions and, because there was no free oxygen in the atmosphere, there ...

It looks like just another hill in Sussex County, but you wouldn’t have wanted to have been standing there 420 million years ago. That’s about when the Beemerville Volcano erupted in Wantage, give or ...