Over the Sierra crest — about 150 miles to the east of Manteca, Oakdale, and Turlock — is one of the world’s largest active ...

From a research submersible, scientists saw hardened lava, dead tube worms and orange flashes from an eruption in the East ...

One of the Pacific Ocean’s lesser-known volcanoes will blow its vent in the coming months, causing 10,000 earthquakes in one ...

Shasta Valley's strange hills reveal a secret — the debris of a massive ancient mountain collapse in Northern California.

Scientists have solved the mystery on why a "zombie" volcano in South America has been displaying possible signs of an ...

Researchers diving in a submersible in the eastern Pacific realized that the landscape they had studied the day before had ...

Hawaii's Kilauea volcano has erupted for a 19th time since December 2024. A timelapse from the USGS shows the eruption, which ...

A recent study has pinpointed the origin of a 120-million-year-old 'super-eruption,' shedding new light on Earth's intricate ...

Scientists have warned that the eruption in Anchorage, Alaska could happen within the next couple of weeks and cause aviation ...

Scientists discovered a magma cap underneath Yellowstone National Park’s surface that may act as a lid to prevent the ...