Could a monster earthquake sink a portion of Northern California? A new study calculates the risk of where and how much land ...

A minor, 3.8-magnitude earthquake struck in Southern California on Monday, according to the United States Geological Survey.

A magnitude-3.6 earthquake rattled the area near the Grapevine on Monday, according to the U.S. Geological Survey. The ...

There are signs of more confrontational politics emerging. The International Campaign for Tibet, which lobbies for ...

Scientists have hypotheses about some of nature's biggest mysteries but are still working on proof. Some beautiful phenomena ...

Not everywhere in Japan is suffering from overtourism, says Kate Crockett – the rural Noto Peninsula is welcoming tourists ...

On May 18, 1980, the United States experienced the deadliest and most destructive volcanic eruption in its history.

Sunday marks 45 years since Mount St. Helens erupted in Washington state. The deadly eruption happened shortly after 8:30 a.m ...

According to the USGS, Mount St. Helens is the most active volcano in the lower 48 states and the most likely in the Cascades to erupt again.

Mount St. Helens erupted, killing dozens and forever changing how the US monitors earthquakes. The volcano is still active but not erupting.

The May 18, 1980, eruption of Mount St. Helens in southern Washington claimed 57 lives and blasted the terrain of old-growth ...

The 1980 Mount St. Helens eruption began with a steady series of earthquakes in March. By April it began spewing smoke, ...