For many, the word “eruption” brings to mind 1980 when Mount Saint Helens demonstrated that the Washington Cascades are one of the most volcanically active parts of the country. Mount Saint ...

On July 8, 2025, locals started wondering if the long-dormant volcano may be ready to erupt. A series of earthquakes began occurring in rapid succession, a phenomenon called an "earthquake swarm." The ...

He said the last Mount Rainier eruption was about 1,000 years ago. Unlike Mount St. Helens, Rainier is not known to be particularly explosive, according to the National Geographic article.

Mount Rainier, the massive stratovolcano in Washington state, has remained dormant for over 1,000 years, but experts caution that an eruption is inevitable. If it were to erupt, t ...

He said the last Mount Rainier eruption was about 1,000 years ago. Unlike Mount St. Helens, Rainier is not known to be particularly explosive, according to the National Geographic article.

The snowcapped peak of Mount Rainier, which towers 4.3 kilometers (2.7 miles) above sea level in Washington state, has not produced a significant volcanic eruption in the past 1,000 years. Yet ...

The USGS predicts that a lahar event from Mt. Rainier could occur in the next 500 to 1,000 years, and if an eruption and lahar were to occur, it would put the lives of thousands at risk in Pierce ...

Though it doesn’t have a history of explosive eruptions, Mount Rainier is the third-highest risk volcano in the U.S. It also has the highest number of people in the downstream hazard zone ...

If residents aren’t prepared, an eruption at Rainier could prove to be America’s very own Armero tragedy. An aerial view shows the Seattle harbor with Mount Rainier in the background.

He said the last Mount Rainier eruption was about 1,000 years ago. Unlike Mount St. Helens, Rainier is not known to be particularly explosive, according to the National Geographic article.

For many, the word “eruption” brings to mind 1980 when Mount Saint Helens demonstrated that the Washington Cascades are one of the most volcanically active parts of the country. Mount Saint ...

A National Geographic article titled "This May be the Most Dangerous U.S. Volcano" claims volcanologists see Mount Rainier as a "real risk." ...