Atmospheric river conditions could bring multiple feet of snow to the northern Sierra Nevada. Other areas face a risk of flooding as the ground becomes increasingly saturated.

This week was the USGS Northern California Earthquake Hazards Workshop (NCEHW). I joined other earthquake hazards professionals for three days of virtual talks and discussions about the latest ...

A section of the upper mantle and crust under the Sierra Nevada mountains is peeling away, in a process that may mimic how ...

Monterey County firefighters on Friday said they were monitoring Vistra Energy's fire-damaged lithium-ion battery facility ...

Deep beneath California, a dramatic geological process is underway—one that could reshape the state’s landscape over millions ...

Gov. Gavin Newsom’s executive order will be long forgotten by the time people can actually rebuild Los Angeles, writes Robin ...

On Thursday at 9:17 p.m. the NWS San Francisco CA issued a flood watch valid from Friday noon until Sunday 10 p.m. The watch ...

The National Weather Service has issued a Flood Watch for parts of Northern California, including areas from the Shasta Lake ...

As the cleanup phase of recovery begins after the devastating fires in L.A. County, displaced residents grapple with new ...

Researchers have discovered geologic evidence that suggests California is 'peeling apart' deep beneath Earth's surface. This ...

The society faced financial challenges that were exacerbated by the coronavirus pandemic. Its nearly 600,000 items stretch ...

A Ware, Massachusetts, resident said she was home and her whole house was shaking for about 10 seconds from what she at first ...