In the shadow of Washington State’s Mount Rainier, about 90,000 people live in the path of a potential large lahar—a destructive, fluid and fast-moving debris flow associated with volcanic slopes. At ...

Washington’s intense bout with record-breaking temperatures likely triggered a glacial mudslide on Mount Rainer. Monitors registered the lahar Tuesday afternoon, saying it lasted for hours. Lahars, ...

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 ...

The Orting School District will conduct its annual lahar evacuation drill starting at 9:15 a.m. Thursday (May 21). The district will partner with the Orting Police Department, Orting Fire and Rescue, ...

Jan 29 (Reuters) - A volcanic mudslide from New Zealand's 2,800 metre Mount Ruapehu is likely to be triggered in the coming weeks as melting snow fills the summit's swollen crater lake, local media ...

TACOMA — Pierce County is moving to a new centralized lahar warning system — one that could replace the jolting wail of sirens with the gentler sound of chiming bells during twice-yearly tests. A ...

TACOMA — Pierce County is moving to a new, centralized lahar warning system — one that could replace the jolting wail of sirens with a gentler sound of chiming bells during twice-yearly tests. A ...

Editor's note: The attached video originally aired in May 2019. Would you know what to do if Mount Rainier were to erupt? Emergency management officials want to find out. Officials with the Washington ...

The Philippine Institute of Volcanology and Seismology (PHIVOLCS) warned residents around Mayon Volcano to stay alert for possible lahar flows as #UwanPH brings heavy rains over the Bicol Region.