adding that the nearby Mount St. Helens and Mount Rainier often experience 10 to 20 earthquakes per month. "Some volcanoes, ...

Experts say it is only a matter of time until Mount Rainier, one of the most dangerous volcanos in the US, unleashes itself upon the Pacific Northwest. This huge, active stratovolcano looms over ...

Lahars typically occur during volcanic eruptions but also can be caused by landslides and earthquakes. Geologists have found evidence that at least 11 large lahars from Mount Rainier have reached ...