The study, published Monday in the Proceedings of the National Academy of Sciences (PNAS), found that a major earthquake ...

Valley rainfall totals varied, with Sacramento getting just 0.15 inches while Stockton recorded 1.05 inches. That set a rain ...

When an earthquake rips along the Cascadia Subduction Zone fault, much of the U.S. west coast could shake violently for five ...

The Cascadia Subduction Zone, a major fault that runs offshore from Northern California to British Columbia, is best known ...

A powerful future earthquake, coupled with climate-driven surges in sea levels, could significantly increase flood risks in ...

The next great earthquake isn't the only threat to the Pacific Northwest. A powerful earthquake, combined with rising sea ...

A future Cascadia earthquake could unleash far more than just devastating shaking — it could sink large parts of the Pacific ...

Chain controls could be likely on Sierra roadways at times, bringing travel delays, especially over the summits.

In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries ...

A late-season snowstorm is expected to drop up to 7 inches of snow to some Southern California mountains this weekend.

As a result, properties adjacent to the Vermilion River from Chelmsford through to Whitefish are at a higher risk of flooding ...