Mount Rainier experienced a significant earthquake swarm, the largest since 2009, with hundreds of small quakes detected near ...

VANCOUVER, Wash. – A swarm of hundreds of small earthquakes has been detected rumbling deep below Mt. Rainier in Washington ...

MT. RAINIER, Wash. — A swarm of small earthquakes was detected at Mount Rainier Tuesday morning, according to the U.S. Geological Survey Cascades Volcano Observatory (CVO) and the Pacific Northwest ...

A swarm of small earthquakes was detected beneath Mount Rainier on July 8, 2025, but officials say there is no current threat of an eruption.

A swarm of small earthquakes began early Tuesday morning beneath Mount Rainier, with more than 400 minor tremors recorded as ...

Several of Mount Rainier’s glaciers are already gone, experts say, and others aren’t far behind. The News Tribune asked what that means for visitors.

During the Mount St. Helens eruptions, lahars flowed up to 60 miles destroying 200 homes. Lahars are one of the risks with a Mount Rainier eruption, so many foothill communities prepare.

The Office of Civil Defense has warned of a potential lahar hazard flow from Kanlaon, which may endanger 644,487 residents in 13 cities and municipalities on Negros Island, as some areas near the ...

Mount St. Helens killed more than 50 people, but Malone said the death toll could have been far higher without the advance warnings. Regardless, Rainier imperils the areas that surround it.

Lahars aren’t the only thing we should be worried about if Rainier erupts. Air quality would plummet, Adeogun said — a hazard that sometimes gets overlooked.

Mount Rainier’s cousin Mount St. Helens, farther south in the Cascade Range, triggered a devastating lahar when it erupted four decades ago, although it did not reach any densely populated areas.

Mount St. Helens, which cataclysmically erupted in May 1980, ranked as second most hazardous before Mount Rainier in third place. The eruption of the Nevado del Ruiz volcano in November 1985 ...