The quake, which was followed by several much smaller tremors, was the biggest to hit the Campi Flegrei (Phlegraean Fields) ...

Monitoring stations around Mount Adams noted nine earthquakes ranging from magnitude 0.9 to 2.0 near the volcano between ...

A 4.4-magnitude earthquake struck the area around Naples overnight, causing one light injury and some structural damage, and ...

Mount Spurr, located about 75 miles West of Anchorage, has been acting up in recent weeks, prompting officials at the U.S. Geological Survey and Alaska Volcano Observatory to issue a yellow alert.

Alaska's Mount Spurr, an active volcano near the most populated region in the state, is getting even closer to an eruption, ...

Increased volcanic activity on Alaska's Mount Spurr volcano could lead to an eruption in the coming weeks or months, ...

The quake was the strongest in recorded history around the Phlegrean Fields, a sprawling area of ancient volcanoes that ...

The US Geological Survey has issued a hazard notification that increased "unrest" at the volcano indicates big things are ...

Scientists are on high alert after observing signs of unrest in a massive US volcano that sits just miles away from a city ...

Mount Spurr is one of 53 volcanoes in Alaska that have been active within the last 250 years and is nearly 80 miles northwest ...