Small earthquakes have rocked the active volcano Mt. Rainier in the Cascade Mountain Range this month, sending shockwaves ...

Ralph Sawyer went missing Friday during a solo biking trip near Trillium Lake, prompting a widespread search-and-rescue effort.

Here's why this volcanic region of the Pacific Northwest should be on every outdoor enthusiast's hiking bucket list, with scenic trails and caves to explore.

MOUNT RAINIER NATIONAL PARK — An earthquake swarm at Mount Rainier that started on July 8 is considered one of the largest ...

As of July 10, 334 earthquakes had been identified over the course of two days at Washington's Mount Rainier.

The hundreds of Mount Rainier earthquakes detected Tuesday marked the largest seismic swarm at the active stratovolcano since 2009, the USGS said.

Scientists have recorded the "largest" earthquake swarm at Mount Rainier in Washington state since 2009, the U.S. Geological ...

As of July 10, 334 earthquakes had been identified over the course of two days at Washington's Mount Rainier.

Scientists have recorded the "largest" earthquake swarm at Mount Rainier in Washington state since 2009, the U.S. Geological Survey reported. The swarm at the second-most seismically active ...

The Pacific Northwest Seismic Network recorded hundreds of small earthquakes at Mt. Rainier on Tuesday morning. The US Geological Survey (USGS) says this is the largest earthquake swarm at the ...