Volcanoes across several US states have recently become active, while no immediate danger is reported, experts remain watchful as seismic activity continues.

Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

As part of a year-long celebration of America’s 250th birthday, each week we will be taking a look at historic and notable ...

A humpback whale near Glacier Bay National Park was recently injured by a suspected vessel strike near Willoughby Island. The ...