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

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as needed." ...

Mount Rainier, the active volcano towering above southwestern Washington state, started rumbling — very lightly — on Tuesday. A swarm of small earthquakes was detected under the mountain triggering ...

Oftentimes insurance doesn't cover what the policyholder thinks it does—or thinks it should. Flood insurance is no exception.

Though natural disasters cycle across seasons and regions in the U.S., it's often a shocking discovery for property owners ...

The observatory aims to map the night sky over a decade, potentially discovering millions of asteroids and billions of galaxies.

A swarm of earthquakes under the largest volcano in the Cascade Mountain Range has some people wondering if it's rumbling ...

A tsunami advisory issued for south Alaska and the Alaska Peninsula was cancelled Wednesday afternoon hours after a massive 7 ...

Scientists with the U.S. Geological Survey and the University of Washington recorded more than 400 minor earthquakes beneath ...

On Tuesday, hundreds of earthquakes were detected, with depths ranging from 1.2 to 3.7 miles below the summit.

To see how a magnitude-9.0 earthquake would rattle the Pacific Northwest, researchers ran 50 virtual simulations on a supercomputer.