It's common knowledge that Yellowstone Park sits on top of an ancient supervolcano, but what happened last time it erupted?

Near Kampung Bukit Sapi, there is a massive boulder, and part of it is covered in volcanic ash that is said to be deposits from an eruption from Mount Toba in Sumatra, Indonesia, that occurred ...

Toba, the largest eruption of the past million year ... it depends on the magma and local rocks. An amount of 5 Megatons (Mt) of sulphur is sufficient to produce notable effects. In scientific papers ...

No, not right now. Even if the volcano hits an orange alert, Haney said, that doesn’t necessarily mean an eruption is imminent. In fact, he said Mount Redoubt returned to yellow status after an ...

Elevated levels of volcanic gas and earthquakes have been recorded at the site. Alaska's Mount Spurr, an active volcano near the most populated region in the state, is getting even closer to an ...

Japanese authorities have issued guidance on how the public should respond if the famous Mount Fuji volcano, near Tokyo, were ...

A huge volcano in Alaska appears to be "moving closer to an eruption," scientists monitoring it have said. Mount Spurr, which sits 81 miles (130 kilometers) west of Anchorage, is now releasing ...

The Alaska Volcano Observatory says that if the snowcapped volcano erupts, the impacts could include damage to aircraft from ash.

Increasing volcanic activity at the over 11,000-foot-tall, snowcapped volcano in Alaska is likely a sign of its impending first eruption since 1992, experts say. Mount Spurr, located about 75 ...

ANCHORAGE, Alaska — Increased volcanic activity on Alaska's Mount Spurr volcano indicates an eruption could be coming in the next weeks or months, according to the Alaska Volcano Observatory.