Unlike traditional volcanic eruptions, lahars-fast-moving flows of water, volcanic debris, and rock-are the biggest risk posed by Mount Rainier. These powerful mudslides can occur even without an ...

ranked as second most hazardous before Mount Rainier in third place. Lahars typically occur during volcanic eruptions but also can be caused by landslides and earthquakes. Geologists have found ...

When the volcano does erupt, a fast-moving lahar will give Orting residents ... “It takes time to build a bridge and we can’t do it if Mount Rainier starts getting unsettled.

located in Washington just 50 miles from Mount Rainier, also produced a dangerous lahar that destroyed more than 200 homes, over 185 miles of roads and contributed to the total death toll of 57 ...

A lahar (a destructive mudflow of volcanic ash, rock, water and ice that can flow down a volcano's slopes) from the volcano ...

Last year, Mount Rainier National Park turned to a timed-entry reservation system for visitors who wished to enter the park during peak hours during its busiest months. The pilot program, which ...