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

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

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

The remote Pacific islands making up the nation of Palau offer that modern rarity of genuinely unspoilt nature, says Rory ...

From Mount St Helens in Washington to the Mauna Loa in Hawaii, these structures have a complicated history of disaster and beauty.

We have seen other earthquakes in the area that have not generated significant tsunami waves, but we’re treating it seriously and going through our procedures, making sure communities are notified so ...

The Senate has passed about $9 billion in federal spending cuts requested by President Donald Trump, including deep ...

Scientists created a simulation showing that early Earth still retained chemical traces of its igneous youth, 4.5 billion years ago.

The National Weather Service said there is no tsunami threat to Hawaii after a 7.2 magnitude earthquake shook the Alaska Peninsula.

A preliminary magnitude 7.3 earthquake struck off the coast of Alaska this morning but does not pose a tsunami threat to ...