The National Tsunami Warning Center has warned that the quake, which occurred at 12:55 p.m. local time, could generate dangerous waves and coastal flooding and has urged all residents within the warni

Volcanoes in the United States that have been active since spring woke up, brushed themselves off, and then went back to sleep. Two volcanoes, one in Alaska and one in Hawaii, are experiencing active eruptions that are minimal and not very dangerous.

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

A powerful undersea earthquake struck off the southern coast of Alaska on Wednesday, setting off a tsunami advisory and prompting concern along the state’s remote peninsula region.

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

The series of earthquakes is the first major swarm of seismic events since 2009. Is it safe if you’re planning on visiting?

This is now the largest recorded earthquake swarm at Mount Rainier since seismic monitoring at the volcano began in 1982, the Cascades Volcano Observatory said. With quakes ongoing, the swarm has already surpassed a major event in 2009 “in terms of magnitude, total events, event rate, and energy release.”

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 focused monitoring from officials. But researchers have determined there is no current threat of an eruption.