A powerful March storm has been lashing the West Coast and shifting southward –– posing a particular threat to communities ...

The storm is expected to arrive Wednesday and dump 1 to 2 inches of rain along the coast and up to 4 inches in the valleys at ...

Overnight rain led to mudflow on the Pacific Coast Highway ... are described by the National Weather Service as "fast-moving" landslides that can be potentially deadly, sometimes including ...

When hills are healthy, vegetation anchors soil in place. But when that vegetation is burned off, hillsides become vulnerable to erosion, and slopes can come crashing down.

A storm soaking the state on Wednesday and Thursday is bringing new danger to the area hit by wildfires earlier this year.

Land-use zoning, professional inspections and proper design can minimize many landslide, mudflow and debris flow problems. By the time severe weather hits, it's already too late. Disaster ...

Mount Adams, Washington state's largest active volcano, is witnessing a surge in seismic activity. The seismic activity has ...

Sugimoto lost no time in contacting experts in landslides, geology and data analysis ... at around 3:30 p.m., about five hours after the mudflow occurred. Sugimoto’s direct canvassing and ...

A “major” mudflow swept over a road and left debris in its wake near Rancho Santa Margarita in Orange County, California, overnight into Friday morning, February 14, as heavy rains fell across the ...

Mudflow: Water rushing down with only mud. This is considered a type of shallow landslide — less than 15 feet deep. Debris flow: When water rapidly flows downhill and picks up rocks, branches ...