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

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 ...

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 ...

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 ...

Picture this: a massive horseshoe of fire wrapping around an entire ocean, where the ground shakes almost daily and volcanoes erupt with terrifying regularity. The Ring of Fire spans approximately ...

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 ...

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 ...

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 ...

Thundereggs look like regular rocks from the outside, but contain intricate and colorful mineral patterns inside — often made ...