Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help ...

The temporary bridge over the mudflow damaged section of East Mountain Drive in Montecito is now in and open. (Photo: John Palminteri) John Palminteri The temporary bridge over the mudflow damaged ...

Multiple homes were affected by a mudflow that occurred Sunday afternoon in a La Cañada Flintridge neighborhood after the Southland was doused by a powerful winter storm. At least two homes at the ...

John Palminteri A new bridge is going in at Cold Springs creek, after mudflow damage in 2018. (Photo: John Palminteri) John Palminteri A new bridge is going in at Cold Springs creek, after mudflow ...

An estimated 15,000 daily commuters use a stretch of Highway 101 that has been blocked for a week by mud and debris after the deadly winter storm that slammed Southern California. In the case of ...

A significant mudflow event has prompted the city of Glenwood Springs to close down access to Red Mountain. City public information officer Bryana Starbuck told the Post Independent that around 4 p.m.

Dashcam video captured a terrifying wave of mud and debris as it barreled toward a California Highway Patrol vehicle Jan. 9 in Montecito and lifted it off the road. The video was captured in the early ...

Beverly Crest mudflow shuts down Mulholland Drive 02:17 Mulholland Drive was shut down between Deep Canyon Drive and Coldwater Canyon in Beverly Crest by a mudflow Tuesday morning. KCAL News ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Until now, it has been widely accepted that the fossils found in ...