Most of the U.S. volcanoes that have been making themselves known since spring woke up a bit, shook themselves off and then ...

Footage from an active volcano and a geological attraction have been stitched together and misrepresented online as showing ...

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as ...

Mount Rainier on Tuesday experienced its largest seismic activity since 2009, with a swarm of small earthquakes detected.

More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for ...

The sight of the Milky Way stretching across the night sky is iconic, but some places offer a better view of it than others. These locations are among the best.

Some 1,500 volcanoes are still considered potentially active around the world today. Of those, 161—over 10 percent—sit within the boundaries of the United States.

Magma from the mantle finds its way to the surface, where it erupts as lava or ash and gas—sometimes in spectacular spurts, ...

One of the most famous mountains in Washington, Mount Rainier, has been rumbling over the last day due to the amplified ...

The United States Geological Survey (USGS) has announced that an earthquake swarm has begun beneath Mount Rainier. According ...

Indonesia’s Mount Lewotobi Laki Laki has erupted, sending volcanic materials 18 kilometers into the sky. The eruption has also released searing gas clouds down its slopes, according to ...

Yellowstone National Park, renowned for its geothermal features and volcanic history, is beginning to show signs of renewed ...