They are some of the most dangerous natural events around our Cascade volcanoes. Lahars can slam communities far from the ...

The drill will involve the Puyallup, Sumner-Bonney Lake, Orting, White River and Carbonado school districts.

A lahar is one of the most serious volcanic hazards because its impact can extend far beyond the volcano itself. These phenomena are common in the vicinity of Semeru.

Communities across East Pierce County will participate in a coordinated regional lahar evacuation exercise on Thursday, April ...

TROUT LAKE — As Pat Arnold plucked weeds from her yard with a view of snow-capped Mount Adams, she navigated around large boulders that hint at the volcano’s destructive past. Over the course of ...

MANILA, Philippines —No reports of lahar from Mayon Volcano have emerged after several days of rain, but state volcanologists have urged caution, as the possibility remains. In a public briefing on ...

The Puyallup River valley can expect monthly chimes in lieu of blaring sirens going forward. Pierce County has upgraded the lahar siren system to include blue strobe lights, a voice message and a few ...

Mount Rainier was quiet Wednesday morning. The lahar siren at a Puyallup fire station was not. The lahar-warning system at the station at 311 W. Pioneer went off about 10 a.m. The Puyallup Police ...