The Electron Lahar, also known as the Electron Mudflow, was a lahar in the U.S. state of Washington that descended from the summit and sunset amphitheater on Mount Rainier about 500 years ago.
[1] It was named after the unincorporated community of Electron.
The extent of the Electron mudflow was about 34 miles (55 km) from Mount Rainier.
[2] It covered approximately 13 square miles (34 km2) in the Puyallup Valley, and was more than 26 feet (7.9 m) thick at its deepest point.
[3] This article incorporates public domain material from websites or documents of the United States Geological Survey.