The U.S. Geological Survey Cascades Volcano Observatory said the swarm began early Tuesday at the 14,410-foot volcano near ...

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

A doomsday tsunami is likely to strike the US in the near future, but scientists say it's better if it hits sooner rather ...

More than 400 earthquakes rattled Washington's Mount Rainier over just 12 hours on Tuesday, sparking fears that the ...

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

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

Guatemala has experienced a series of over 37 earthquakes and aftershocks, leaving two people dead and causing widespread damage ...

One of the most famous mountains in Washington, Mount Rainier, has been rumbling over the last day due to the amplified ...