More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano ...

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

Officials at the United States Geological Survey have tracked over 300 earthquakes beneath Washington State's Mt Rainier from ...

Geologists detected hundreds of small earthquakes below the 14,400-foot active volcano in Washington state. It is the largest ...

More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for ...

Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington's Mount Rainier but say there is ...

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 ...

Hundreds of small earthquakes have been detected at Mount Rainier in Washington in an earthquake swarm, the largest number seen in more than 15 years, according to geologists.

WASHINGTON, USA — A "swarm" of small earthquakes near the summit of Mount Rainier Tuesday is no cause for concern, according to local officials.

Hundreds of small earthquakes have been detected at Mount Rainier in Washington in an earthquake swarm, the largest number seen in more than 15 years, according to geologists.

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