One of the world's most active volcanoes surged back to life Wednesday night in Hawaii. It was Kilauea's 18th eruption since ...

9:17 a.m. update April 17: Lava fountaining is anticipated to begin as Kīlauea entered its 18th eruptive episode late Wednesday.

Ash from the 1912 Novarupta eruption periodically hits the west side of Kodiak Island, Larsen Bay and Karluk, roughly 65 ...

A little over 5 million years ago, water from the Atlantic Ocean found a way through the present-day Strait of Gibraltar.

What we know about the cataclysmic ‘megaflood’ considered the largest in Earth’s history - The Mediterranean Sea, a largely dry and salty basin, was refilled in just a few years – or months, writes Da ...