A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.

Add Yahoo as a preferred source to see more of our stories on Google. A recent earthquake swarm at Mount Rainier in Washington state, along with increased volcanic activity in Alaska, Oregon, and ...

Seeing a volcano with my own eyes is a total bucket list dream, but seeing a volcano that's experiencing active volcanic ...

A powerful swarm of earthquakes in January suggested one of Iceland’s giant “ice volcanoes” may be awakening after a decade of slumber. In the months that followed, more earthquakes have rocked the ...

Yellowstone National Park, renowned for its geothermal features and volcanic history, is beginning to show signs of renewed activity after remaining inactive for approximately 160,000 years. Recent ...

When scientists recently took a closer look at archival images of the surface of Venus, they discovered something new: evidence of volcanic activity on Earth's "twin." The NASA Magellan spacecraft ...

A volcano that has been dormant for hundreds of thousands of years could be gearing up for a massive explosion, according to new research. Scientists have measured signs of unrest at the Taftan ...

Some observers around the world are connecting Russia’s volcanic eruption to the 8.8 magnitude earthquake on that country's far-eastern shore. The Pacific Northwest Seismic Network at the University ...

In this photo provided by the Philippine Institute of Volcanology and Seismology, lava flows from the crater of the Mayon volcano as alert level 3 remains raised in Albay province, north eastern ...