Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake ...

Mount Rainier, the active volcano towering above southwestern Washington state, started rumbling — very lightly — on Tuesday.

SEATTLE (AP) — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington’s Mount Rainier ...

Mount Rainier National Park in Washington state recorded hundreds of light earthquakes early Tuesday morning, though the ...

Hundreds of earthquakes have been detected at Mount Rainier so far Tuesday morning in the largest such swarm at the active stratovolcano since 2009, according to the U.S. Geological Survey.

You might have noticed that Mount Rainier’s been looking a little bald lately. People on social media have been posting that Washington’s favorite sight looks less snowy than usual. How much is ...

Seismologists are closely monitoring Mount Rainier after a swarm of earthquakes struck the Pacific Northwest’s tallest ...

Scientists are holding their breath as hundreds of earthquakes rattle one of America's most dangerous volcanoes, which loom ...

Climate change reshapes Mount Rainier. Glacial retreat impacts ecosystems, indigenous traditions, and hiking experiences in Washington’s Pierce County.

Spectators gather on Pittsburgh’s North… Thousands of people spent the day celebrating the Fourth of July in Pittsburgh, with the day ending in a spectacular fireworks show.

Thousands of people spent the day celebrating the Fourth of July in Pittsburgh, with the day ending in a spectacular fireworks show.