Most tourists who visit Yellowstone National Park snap photos of Old Faithful and stroll past bubbling mud pots, never ...

1959 Kīlauea Iki eruption: It happened in the crater just north of the volcano’s caldera, lasting only about a month with 17 ...

An episode of lava fountaining at Kilauea ended early today after nearly six hours of continuous activity inside Halemaumau ...

Viewers watching the U.S. Geological Survey’s livestream of the latest eruption of Kīlauea on Tuesday evening were surprised ...

This story was updated on Dec. 24, 2025. A year ago on Dec. 23, 2024, one of the world’s most active volcanoes awoke.   That ...

The reason the region is safe is because, aside from Yellowstone being closed during the winter months, it has not yet ...

Dec. 23, 2025 marks one year since the ongoing eruption at Kīlauea began, bringing glowing displays of lava and fountains sometimes as tall as the Empire State Building.

Across the United States, scientists who track the country’s most powerful volcano systems are picking up new signals that ...

A big, messy surprise greeted Yellowstone National Park early Saturday morning, just as winter officially began. At around ...

The left map shows the tephra fall associated with Kilauea’s episodic summit eruption, from December 2024 to December 2025.

A weak layer of crust deep below the floor of Italy's Campi Flegrei causes the caldera to undergo periods of earth-trembling unrest, new research has found. According to the new study, published April ...

In the form of sweeping darkness overtaking miles of land, a volcanic eruption more than a million years ago helped form what’s now known as Valles Caldera in New Mexico. In a couple of months, New ...